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Yangtze

The Yangtze, Yangzi or Changjiang (English: /ˈjæŋtsi/ or /ˈjɑːŋtsi/; simplified Chinese: 长江; traditional Chinese: 長江; pinyin: Cháng Jiāng; lit. 'long river') is the longest river in Eurasia, the third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows 6,300 km (3,915 mi) in a generally easterly direction to the East China Sea.[8] It is the fifth-largest primary river by discharge volume in the world. Its drainage basin comprises one-fifth of the land area of China, and is home to nearly one-third of the country's population.[9]

Yangtze River
Dusk on the middle reaches of the Yangtze River (Three Gorges) 2002
Map of the Yangtze River drainage basin
Native nameCháng Jiāng (Chinese)
Location
CountryChina
ProvincesQinghai, Yunnan, Sichuan, Hubei, Hunan, Jiangxi, Anhui, Jiangsu
MunicipalitiesChongqing and Shanghai
Autonomous regionTibet
CitiesLuzhou, Chongqing, Yichang, Jingzhou, Yueyang, Wuhan, Jiujiang, Anqing, Tongling, Wuhu, Nanjing, Zhenjiang, Yangzhou, Nantong, Shanghai
Physical characteristics
SourceDam Qu (Jari Hill)
 • locationTanggula Mountains, Qinghai
 • coordinates32°36′14″N 94°30′44″E / 32.60389°N 94.51222°E / 32.60389; 94.51222
 • elevation5,170 m (16,960 ft)
2nd sourceUlan Moron
 • coordinates33°23′40″N 90°53′46″E / 33.39444°N 90.89611°E / 33.39444; 90.89611
3rd sourceChuma'er River
 • coordinates35°27′19″N 90°55′50″E / 35.45528°N 90.93056°E / 35.45528; 90.93056
4th sourceMuluwusu River
 • coordinates33°22′13″N 91°10′29″E / 33.37028°N 91.17472°E / 33.37028; 91.17472
5th sourceBi Qu
 • coordinates33°16′58″N 91°23′29″E / 33.28278°N 91.39139°E / 33.28278; 91.39139
MouthEast China Sea
 • location
Shanghai and Jiangsu
 • coordinates
31°23′37″N 121°58′59″E / 31.39361°N 121.98306°E / 31.39361; 121.98306
Length6,300 km (3,900 mi)[1]
Basin size1,808,500 km2 (698,300 sq mi)[2]
Discharge 
 • average30,146 m3/s (1,064,600 cu ft/s)[3]
 • minimum2,000 m3/s (71,000 cu ft/s)
 • maximum110,000 m3/s (3,900,000 cu ft/s)[4][5]
Discharge 
 • locationDatong hydrometric station, Anhui (Uppermost boundary of the ocean tide)
 • average(Period: 1980–2020)905.7 km3/a (28,700 m3/s)[6] 30,708 m3/s (1,084,400 cu ft/s) (2019–2020)[7]
Discharge 
 • locationWuhan (Hankou)
 • average(Period: 1980–2020)711.1 km3/a (22,530 m3/s)[6]
Discharge 
 • locationYichang (Three Gorges Dam)
 • average(Period: 1980–2020)428.7 km3/a (13,580 m3/s)[6]
Basin features
Tributaries 
 • leftYalong, Min, Tuo, Jialing, Han
 • rightWu, Yuan, Zi, Xiang, Gan, Huangpu
Chang Jiang
"Yangtze River (Cháng jiāng)" in Simplified (top) and Traditional (bottom) Chinese characters
Chinese name
Simplified Chinese长江
Traditional Chinese長江
Literal meaninglong river
Yangtze River
Simplified Chinese扬子江
Traditional Chinese揚子江
Transcriptions
Standard Mandarin
Hanyu PinyinYángzǐ Jiāng
Wade–GilesYang-tzu Chiang
IPA[jǎŋtsì tɕjáŋ]
Wu
RomanizationYang Tse Kaon
Xiang
IPAjɒŋ13tsɯ31kiɒŋ44
Yue: Cantonese
JyutpingJoeng4-zi2 Gong1
Tibetan name
Tibetanའབྲི་ཆུ་
Transcriptions
Wylie'Bri Chu
THLDri Chu

The Yangtze has played a major role in the history, culture, and economy of China. For thousands of years, the river has been used for water, irrigation, sanitation, transportation, industry, boundary-marking, and war. The prosperous Yangtze Delta generates as much as 20% of China's GDP. The Three Gorges Dam on the Yangtze is the largest hydro-electric power station in the world that is in use.[10][11] In mid-2014, the Chinese government announced it was building a multi-tier transport network, comprising railways, roads and airports, to create a new economic belt alongside the river.[12]

The Yangtze flows through a wide array of ecosystems and is habitat to several endemic and threatened species including the Chinese alligator, the narrow-ridged finless porpoise, and also was the home of the now extinct Yangtze river dolphin (or baiji) and Chinese paddlefish, as well as the Yangtze sturgeon, which is extinct in the wild. In recent years, the river has suffered from industrial pollution, plastic pollution,[13] agricultural runoff, siltation, and loss of wetland and lakes, which exacerbates seasonal flooding. Some sections of the river are now protected as nature reserves. A stretch of the upstream Yangtze flowing through deep gorges in western Yunnan is part of the Three Parallel Rivers of Yunnan Protected Areas, a UNESCO World Heritage Site.

Etymology edit

Chinese edit

Cháng Jiāng (长江; 長江) or "Long River" is the official name for the Yangtze in Mandarin Chinese. However, the Chinese have given different names to the upstream sections of the river up to its confluence with the Min River at Yibin, Sichuan.[14][15] Jinsha River ("Gold Sands River") refers to the 2,308 km (1,434 mi) of the Yangtze from Yibin upstream to the confluence with the Batang River near Yushu in Qinghai, while the Tongtian River ("River that leads to Heaven") describes the 813 km (505 mi) section from Yushu up to the confluence of the Tuotuo River and the Dangqu River.

In Old Chinese, the Yangtze was simply called Jiang/Kiang ,[16] a character of phono-semantic compound origin, combining the water radical with the homophone (now pronounced gōng, but *kˤoŋ in Old Chinese[17]). Kong was probably a word in the Austroasiatic language of local peoples such as the Yue. Similar to *krong in Proto-Vietnamese and krung in Mon, all meaning "river", it is related to modern Vietnamese sông (river) and Khmer krung (city on riverside), whence Thai krung (กรุง capital city), not kôngkea (water) which is from the Sanskrit root gáṅgā.[18]

 
The "Great River" (大江) with its entrance to the East China Sea marked as the "Mouth of the Yangtze" (揚子江口) on the Jiangnan map in the 1754 Provincial Atlas of the Qing Empire

By the Han dynasty, Jiāng had come to mean any river in Chinese, and this river was distinguished as the "Great River" 大江 (Dàjiāng). The epithet (simplified version ), meaning "long", was first formally applied to the river during the Six Dynasties period.[citation needed]

Various sections of the Yangtze have local names. From Yibin to Yichang, the river through Sichuan and Chongqing Municipality is also known as the Chuān Jiāng (川江) or "Sichuan River." In Hubei, the river is also called the Jīng Jiāng (荆江; 荊江) or the "Jing River" after Jingzhou, one of the Nine Provinces of ancient China. In Anhui, the river takes on the local name Wǎn Jiāng after the shorthand name for Anhui, wǎn (皖). Yángzǐ Jiāng (揚子江; 扬子江) or the "Yangzi River", from which the English name Yangtze is derived, is the local name for the Lower Yangtze in the region of Yangzhou. The name likely comes from an ancient ferry crossing called Yángzǐ or Yángzǐjīn (揚子 / 揚子津).[19] Europeans who arrived in the Yangtze River Delta region applied this local name to the whole river.[14] The dividing site between upstream and midstream is considered to be at Yichang and that between midstream and downstream at Hukou (Jiujiang).[20]

English edit

The river was called Quian () and Quianshui (江水) by Marco Polo[21] and appeared on the earliest English maps as Kian or Kiam,[22][23] which derives from Cantonese, all recording dialects which preserved forms of the Middle Chinese pronunciation of as Kæwng.[16] By the mid-19th century, these romanizations had standardized as Kiang; Dajiang, e.g., was rendered as "Ta-Kiang." "Keeang-Koo,"[24] "Kyang Kew,"[25] "Kian-ku,"[26] and related names derived from mistaking the Chinese term for the mouth of the Yangtze (江口, p Jiāngkǒu) as the name of the river itself.

The name Blue River began to be applied in the 18th century,[22] apparently owing to a former name of the Dam Chu[28] or Min[30] and to analogy with the Yellow River,[31][32] but it was frequently explained in early English references as a 'translation' of Jiang,[33][34] Jiangkou,[24] or Yangzijiang.[35] Very common in 18th- and 19th-century sources, the name fell out of favor due to growing awareness of its lack of any connection to the river's Chinese names[36][37] and to the irony of its application to such a muddy waterway.[37][38]

Matteo Ricci's 1615 Latin account included descriptions of the "Ianſu" and "Ianſuchian."[39] The posthumous account's translation of the name as Fils de la Mer ("Son of the Ocean")[39][40] shows that Ricci, who by the end of his life was fluent in literary Chinese, was introduced to it as the homophonic 洋子江 rather than the usual 揚子江. Further, although railroads and the Shanghai concessions subsequently turned it into a backwater, Yangzhou was the lower river's principal port for much of the Qing dynasty, directing Liangjiang's important salt monopoly and connecting the Yangtze with the Grand Canal to Beijing. (That connection also made it one of the Yellow River's principal ports between the floods of 1344 and the 1850s, during which time the Yellow River ran well south of Shandong and discharged into the ocean a mere few hundred kilometers from the mouth of the Yangtze.[36][26])

By 1800, English cartographers such as Aaron Arrowsmith had adopted the French style of the name[41] as Yang-tse or Yang-tse Kiang.[42] The British diplomat Thomas Wade emended this to Yang-tzu Chiang as part of his formerly popular romanization of Chinese, based on the Beijing dialect instead of Nanjing's and first published in 1867. The spellings Yangtze and Yangtze Kiang was a compromise between the two methods adopted at the 1906 Imperial Postal Conference in Shanghai, which established postal romanization. Hanyu Pinyin was adopted by the PRC's First Congress in 1958, but it was not widely employed in English outside mainland China prior to the normalization of diplomatic relations between the United States and the PRC in 1979; since that time, the spelling Yangzi has also been used.

Tibetan edit

The source and upper reaches of the Yangtze are located in ethnic Tibetan areas of Qinghai.[43] In Tibetan, the Tuotuo headwaters are the Machu (Tibetan: རྨ་ཆུ་, Wylie: rma-chu, lit. "Red Water"). The Tongtian is the Drichu (འབྲི་ཆུ་ , ‘Bri Chu’), literally "Water of the Female Yak"; transliterated into Chinese: 直曲; pinyin: Zhíqū).

Geography edit

 
A topographical map of China depicting the Yangtze's steady course and the former route of the Yellow River south of Shandong to the Huai mouth, after its stabilization by the Grand Eunuch Li Xing's public works following the 1494 flood

The river originates from several tributaries in the eastern part of the Tibetan Plateau, two of which are commonly referred to as the "source." Traditionally, the Chinese government has recognized the source as the Tuotuo tributary at the base of a glacier lying on the west of Geladandong Mountain in the Tanggula Mountains. This source is found at 33°25′44″N 91°10′57″E / 33.42889°N 91.18250°E / 33.42889; 91.18250 and while not the furthest source of the Yangtze, it is the highest source at 5,342 m (17,526 ft) above sea level. The true source of the Yangtze, hydrologically the longest river distance from the sea, is at Jari Hill at the head of the Dam Qu tributary, approximately 325 km (202 mi) southeast of Geladandong.[44] This source was only discovered in the late 20th century and lies in wetlands at 32°36′14″N 94°30′44″E / 32.60389°N 94.51222°E / 32.60389; 94.51222 and 5,170 m (16,960 ft) above sea level just southeast of Chadan Township in Zadoi County, Yushu Prefecture, Qinghai.[45] As the historical spiritual source of the Yangtze, the Geladandong source is still commonly referred to as the source of the Yangtze since the discovery of the Jari Hill source.[44]

These tributaries join and the river then runs eastward through Qinghai (Tsinghai), turning southward down a deep valley at the border of Sichuan (Szechwan) and Tibet to reach Yunnan. In the course of this valley, the river's elevation drops from above 5,000 m (16,000 ft) to less than 1,000 m (3,300 ft). Thus, over the first 2,600 km (1,600 mi) of its length, the river has fallen more than 5,200 m (17,000 ft).[46]

It enters the basin of Sichuan at Yibin. While in the Sichuan basin, it receives several mighty tributaries, increasing its water volume significantly. It then cuts through Mount Wushan bordering Chongqing and Hubei to create the famous Three Gorges. Eastward of the Three Gorges, Yichang is the first city on the Yangtze Plain.

After entering Hubei province, the Yangtze receives water from a number of lakes. The largest of these lakes is Dongting Lake, which is located on the border of Hunan and Hubei provinces, and is the outlet for most of the rivers in Hunan. At Wuhan, it receives its biggest tributary, the Han River, bringing water from its northern basin as far as Shaanxi.

At the northern tip of Jiangxi province, Lake Poyang, the biggest freshwater lake in China, merges into the river. The river then runs through Anhui and Jiangsu, receiving more water from innumerable smaller lakes and rivers, and finally reaches the East China Sea at Shanghai.

Four of China's five main freshwater lakes contribute their waters to the Yangtze River. Traditionally, the upstream part of the Yangtze River refers to the section from Yibin to Yichang; the middle part refers to the section from Yichang to Hukou County, where Lake Poyang meets the river; the downstream part is from Hukou to Shanghai.

The origin of the Yangtze River has been dated by some geologists to about 45 million years ago in the Eocene,[47] but this dating has been disputed.[by whom?][48][49]

Image gallery edit

History edit

Geologic history edit

Although the mouth of the Yellow River has fluctuated widely north and south of the Shandong peninsula within the historical record, the Yangtze has remained largely static. Based on studies of sedimentation rates, however, it is unlikely that the present discharge site predates the late Miocene (c. 11 Ma).[51] Prior to this, its headwaters drained south into the Gulf of Tonkin along or near the course of the present Red River.[52]

 
Afternoon in the jagged mountains rising from the Yangtze River gorge

Early history edit

The Yangtze River is important to the cultural origins of southern China and Japan.[53] Human activity has been verified in the Three Gorges area as far back as 27,000 years ago,[54] and by the 5th millennium BC, the lower Yangtze was a major population center occupied by the Hemudu and Majiabang cultures, both among the earliest cultivators of rice. By the 3rd millennium BC, the successor Liangzhu culture showed evidence of influence from the Longshan peoples of the North China Plain.[55] What is now thought of as Chinese culture developed along the more fertile Yellow River basin; the "Yue" people of the lower Yangtze possessed very different traditions – blackening their teeth, cutting their hair short, tattooing their bodies, and living in small settlements among bamboo groves[56] – and were considered barbarous by the northerners.

The Central Yangtze valley was home to sophisticated Neolithic cultures.[57] Later it became the earliest part of the Yangtze valley to be integrated into the North Chinese cultural sphere. (Northern Chinese were active there since the Bronze Age).[58]

 
A map of the Warring States around 350 BC, showing the former coastline of the Yangtze delta

In the lower Yangtze, two Yue tribes, the Gouwu in southern Jiangsu and the Yuyue in northern Zhejiang, display increasing Zhou (i.e., North Chinese) influence starting in the 9th century BC. Traditional accounts[59] credit these changes to northern refugees (Taibo and Zhongyong in Wu and Wuyi in Yue) who assumed power over the local tribes, though these are generally assumed to be myths invented to legitimate them to other Zhou rulers. As the kingdoms of Wu and Yue, they were famed as fishers, shipwrights, and sword-smiths. Adopting Chinese characters, political institutions, and military technology, they were among the most powerful states during the later Zhou. In the middle Yangtze, the state of Jing seems to have begun in the upper Han River valley a minor Zhou polity, but it adapted to native culture as it expanded south and east into the Yangtze valley. In the process, it changed its name to Chu.[60]

Whether native or nativizing, the Yangtze states held their own against the northern Chinese homeland: some lists credit them with three of the Spring and Autumn period's Five Hegemons and one of the Warring States' Four Lords. They fell in against themselves, however. Chu's growing power led its rival Jin to support Wu as a counter. Wu successfully sacked Chu's capital Ying in 506 BC, but Chu subsequently supported Yue in its attacks against Wu's southern flank. In 473 BC, King Goujian of Yue fully annexed Wu and moved his court to its eponymous capital at modern Suzhou. In 333 BC, Chu finally united the lower Yangtze by annexing Yue, whose royal family was said to have fled south and established the Minyue kingdom in Fujian. Qin was able to unite China by first subduing Ba and Shu on the upper Yangtze in modern Sichuan, giving them a strong base to attack Chu's settlements along the river.

The state of Qin conquered the central Yangtze region, previous heartland of Chu, in 278 BC, and incorporated the region into its expanding empire. Qin then used its connections along the Yangtze River the Xiang River to expand China into Hunan, Jiangxi and Guangdong, setting up military commanderies along the main lines of communication. At the collapse of the Qin Dynasty, these southern commanderies became the independent Nanyue Empire under Zhao Tuo while Chu and Han vied with each other for control of the north.

Since the Han dynasty, the region of the Yangtze River grew ever more important to China's economy. The establishment of irrigation systems (the most famous one is Dujiangyan, northwest of Chengdu, built during the Warring States period) made agriculture very stable and productive, eventually exceeding even the Yellow River region. The Qin and Han empires were actively engaged in the agricultural colonization of the Yangtze lowlands, maintaining a system of dikes to protect farmland from seasonal floods.[61] By the Song dynasty, the area along the Yangtze had become among the wealthiest and most developed parts of the country, especially in the lower reaches of the river. Early in the Qing dynasty, the region called Jiangnan (that includes the southern part of Jiangsu, the northern part of Zhejiang, and the southeastern part of Anhui) provided 1312 of the nation's revenues.

The Yangtze has long been the backbone of China's inland water transportation system, which remained particularly important for almost two thousand years, until the construction of the national railway network during the 20th century. The Grand Canal connects the lower Yangtze with the major cities of the Jiangnan region south of the river (Wuxi, Suzhou, Hangzhou) and with northern China (all the way from Yangzhou to Beijing). The less well known ancient Lingqu Canal, connecting the upper Xiang River with the headwaters of the Guijiang, allowed a direct water connection from the Yangtze Basin to the Pearl River Delta.[62]

Historically, the Yangtze became the political boundary between north China and south China several times (see History of China) because of the difficulty of crossing the river. This occurred notably during the Southern and Northern Dynasties, and the Southern Song. Many battles took place along the river, the most famous being the Battle of Red Cliffs in 208 AD during the Three Kingdoms period.

The Yangtze was the site of naval battles between the Song dynasty and Jurchen Jin during the Jin–Song wars. In the Battle of Caishi of 1161, the ships of the Jin emperor Wanyan Liang clashed with the Song fleet on the Yangtze. Song soldiers fired bombs of lime and sulfur using trebuchets at the Jurchen warships. The battle was a Song victory that halted the invasion by the Jin.[63][64] The Battle of Tangdao was another Yangtze naval battle in the same year.

Politically, Nanjing was the capital of China several times, although most of the time its territory only covered the southeastern part of China, such as the Wu kingdom in the Three Kingdoms period, the Eastern Jin Dynasty, and during the Southern and Northern Dynasties and Five Dynasties and Ten Kingdoms periods. Only the Ming occupied most parts of China from their capital at Nanjing, though it later moved the capital to Beijing. The ROC capital was located in Nanjing in the periods 1911–12, 1927–37, and 1945–49.

 
Ten Thousand Miles of the Yangtze River, a Ming dynasty landscape painting

Age of steam edit

The Jardine, the first steamship to sail the river, was built for Jardine, Matheson & Co. in 1835. This small vessel was to carry passengers and mail between Lintin Island, Macao, and Huangpu. However, the Chinese, draconian in their application of the rules relating to foreign vessels, were unhappy about a "fire-ship" steaming up the Canton River. The acting Viceroy of Liangguang issued an edict warning that she would be fired on if she attempted the trip.[65] On the Jardine's first trial run from Lintin Island the forts on both sides of the Bogue opened fire and she was forced to turn back. The Chinese authorities issued a further warning insisting that the ship leave Chinese waters. The Jardine in any case needed repairs and was sent to Singapore.[66]
Subsequently, Lord Palmerston, the Foreign Secretary decided mainly on the "suggestions" of William Jardine to declare war on China. In mid-1840, a large fleet of warships appeared on the China coast, and with the first cannonball fired at a British ship, the Royal Saxon, the British started the first of the Opium Wars. Royal Navy warships destroyed numerous shore batteries and Chinese warships, laying waste to several coastal forts along the way. Eventually, they pushed their way up north close enough to threaten the Imperial Palace in Beijing itself.[65]

The China Navigation Company was an early shipping company founded in 1876 in London, initially to trade up the Yangtze River from their Shanghai base with passengers and cargo. Chinese coastal trade started shortly after, and in 1883 a regular service to Australia was initiated.[65]

Yangtze River steam boats filmed in 1937
 
USS Luzon

Navigation on the upper river edit

 
Yangtze in 1915
 
Cruise boats on Yangtze
 
A vehicle carrier on Yangtze
 
A container carrier on Yangtze

Steamers came late to the upper river, the section stretching from Yichang to Chongqing. Freshets from Himalayan snowmelt created treacherous seasonal currents. But summer was better navigationally and the three gorges, described as a "150-mile passage which is like the narrow throat of an hourglass," posed hazardous threats of crosscurrents, whirlpools and eddies, creating significant challenges to steamship efforts. Furthermore, Chongqing is 700 – 800 feet above sea level, requiring powerful engines to make the upriver climb. Junk travel accomplished the upriver feat by employing 70–80 trackers, men hitched to hawsers who physically pulled ships upriver through some of the most risky and deadly sections of the three gorges.[67] Achibald John Little took an interest in Upper Yangtze navigation when in 1876, the Chefoo Convention opened Chongqing to consular residence but stipulated that foreign trade might only commence once steamships had succeeded in ascending the river to that point. Little formed the Upper Yangtze Steam Navigation Co., Ltd. and built Kuling but his attempts to take the vessel further upriver than Yichang were thwarted by the Chinese authorities who were concerned about the potential loss of transit duties, competition to their native junk trade and physical damage to their crafts caused by steamship wakes. Kuling was sold to China Merchants Steam Navigation Company for lower river service. In 1890, the Chinese government agreed to open Chongqing to foreign trade as long as it was restricted to native crafts. In 1895, the Treaty of Shimonoseki provided a provision which opened Chongqing fully to foreign trade. Little took up residence in Chongqing and built Leechuan, to tackle the gorges in 1898. In March Leechuan completed the upriver journey to Chongqing but not without the assistance of trackers. Leechuan was not designed for cargo or passengers and if Little wanted to take his vision one step further, he required an expert pilot.[68] In 1898, Little persuaded Captain Samuel Cornell Plant to come out to China to lend his expertise. Captain Plant had just completed navigation of Persia's Upper Karun River and took up Little's offer to assess the Upper Yangtze on Leechuan at the end of 1898. With Plant's design input, Little had SS Pioneer built with Plant in command. In June 1900, Plant was the first to successfully pilot a merchant steamer on the Upper Yangtze from Yichang to Chongqing. Pioneer was sold to Royal Navy after its first run due to threat from the Boxer Rebellion and renamed HMS Kinsha. Germany's steamship effort that same year on SS Suixing ended in catastrophe. On Suixing's maiden voyage, the vessel hit a rock and sunk, killing its captain and ending realistic hopes of regular commercial steam service on the Upper Yangtze. In 1908, local Sichuan merchants and their government partnered with Captain Plant to form Sichuan Steam Navigation Company becoming the first successful service between Yichang and Chongqing. Captain Plant designed and commanded its two ships, SS Shutung and SS Shuhun. Other Chinese vessels came onto the run and by 1915, foreign ships expressed their interest too. Plant was appointed by Chinese Maritime Customs Service as First Senior River Inspector in 1915. In this role, Plant installed navigational marks and established signaling systems. He also wrote Handbook for the Guidance of Shipmasters on the Ichang-Chungking Section of the Yangtze River, a detailed and illustrated account of the Upper Yangtze's currents, rocks, and other hazards with navigational instruction. Plant trained hundreds of Chinese and foreign pilots and issued licenses and worked with the Chinese government to make the river safer in 1917 by removing some of the most difficult obstacles and threats with explosives. In August 1917, British Asiatic Petroleum became the first foreign merchant steamship on the Upper Yangtze. Commercial firms, Robert Dollar Company, Jardine Matheson, Butterfield and Swire and Standard Oil added their own steamers on the river between 1917 and 1919. Between 1918 and 1919, Sichuan warlord violence and escalating civil war put Sichuan Steam Navigational Company out of business.[69] Shutung was commandeered by warlords and Shuhun was brought down river to Shanghai for safekeeping.[70] In 1921, when Captain Plant died at sea while returning home to England, a Plant Memorial Fund was established to perpetuate Plant's name and contributions to Upper Yangtze navigation. The largest shipping companies in service, Butterfield & Swire, Jardine Matheson, Standard Oil, Mackenzie & Co., Asiatic Petroleum, Robert Dollar, China Merchants S.N. Co. and British-American Tobacco Co., contributed alongside international friends and Chinese pilots. In 1924, a 50-foot granite pyramidal obelisk was erected in Xintan, on the site of Captain Plant's home, in a Chinese community of pilots and junk owners. One face of the monument is inscribed in Chinese and another in English. Though recently relocated to higher ground ahead of the Three Gorges Dam, the monument still stands overlooking the Upper Yangtze River near Yichang, a rare collective tribute to a westerner in China.[71][72]

Standard Oil ran the tankers Mei Ping, Mei An and Mei Hsia, which were collectively destroyed on December 12, 1937, when Japanese warplanes bombed and sank the U.S.S. Panay. One of the Standard Oil captains who survived this attack had served on the Upper River for 14 years.[73]

Navy ships edit

 
The Imperial Japanese Navy armored cruiser Izumo in Shanghai in 1937. She sank riverboats on the Yangtze in 1941.

Contemporary events edit

Chinese Communist Party chairman Mao Zedong took staged swims in the river in 1956 and 1966 at Wuhan in publicity stunts to demonstrate his health, also starting a swimming craze through party propaganda.[74][75]

In August 2019, Welsh adventurer Ash Dykes became the first person to complete the 4,000-mile (6,437 km) trek along the course of the river, walking for 352 days from its source to its mouth.[76]

Hydrology edit

Periodic floods edit

Tens of millions of people live in the floodplain of the Yangtze valley, an area that naturally floods every summer and is habitable only because it is protected by river dikes. The floods large enough to overflow the dikes have caused great distress to those who live and farm there. Floods of note include those of 1931, 1954, and 1998.

The 1931 Central China floods or the Central China floods of 1931 were a series of floods that are generally considered among the deadliest natural disasters ever recorded, and almost certainly the deadliest of the 20th century (when pandemics and famines are discounted). Estimates of the total death toll range from 145,000 to between 3.7 million and 4 million.[77][78] The Yangtze flooded again in 1935, causing great loss of life.

From June to September 1954, the Yangtze River Floods were a series of catastrophic floodings that occurred mostly in Hubei Province. Due to unusually high volume of precipitation as well as an extraordinarily long rainy season in the middle stretch of the Yangtze River late in the spring of 1954, the river started to rise above its usual level in around late June. Despite efforts to open three important flood gates to alleviate the rising water by diverting it, the flood level continued to rise until it hit the historic high of 44.67 m in Jingzhou, Hubei and 29.73 m in Wuhan. The number of dead from this flood was estimated at 33,000, including those who died of plague in the aftermath of the disaster.

The 1998 Yangtze River floods were a series of major floods that lasted from middle of June to the beginning of September 1998 along the Yangtze.[79] In the summer of 1998, China experienced massive flooding of parts of the Yangtze River, resulting in 3,704 dead, 15 million homeless and $26 billion in economic loss.[80] Other sources report a total loss of 4150 people, and 180 million people were affected.[81] A staggering 25 million acres (100,000 km2) were evacuated, 13.3 million houses were damaged or destroyed. The floods caused $26 billion in damages.[81]

The 2016 China floods caused US$22 billion in damages.

In 2020, the Yangtze river saw the heaviest rainfall since 1961, with a 79% increase in June and July compared to the average for the period over the previous 41 years. A new theory suggested that abrupt reduction in emissions of greenhouse gases and aerosols, caused by shutdowns during the COVID-19 pandemic, was a key cause of the intense downpours. Over the past decades rainfall had decreased due to increase of aerosols in the atmosphere, and lower greenhouse gas emissions in 2020 caused the opposite effect – a major increase in rain. Such a dramatic reduction of aerosols caused a dramatic change in the various components of the climate system, but such sudden change of the climate system would be very different from changes in response to continuous but gradual policy-driven emissions reductions.[82]

Degradation of the river edit

 
Barges on the river

Beginning in the 1950s, dams and dikes were built for flood control, land reclamation, irrigation, and control of diseases vectors such as blood flukes that caused Schistosomiasis. More than a hundred lakes were thusly cut off from the main river.[83] There were gates between the lakes that could be opened during floods. However, farmers and settlements encroached on the land next to the lakes although it was forbidden to settle there. When floods came, it proved impossible to open the gates since it would have caused substantial destruction.[84] Thus the lakes partially or completely dried up. For example, Baidang Lake shrunk from 100 square kilometers (39 sq mi) in the 1950s to 40 square kilometers (15 sq mi) in 2005. Zhangdu Lake dwindled to one quarter of its original size. Natural fisheries output in the two lakes declined sharply. Only a few large lakes, such as Poyang Lake and Dongting Lake, remained connected to the Yangtze. Cutting off the other lakes that had served as natural buffers for floods increased the damage done by floods further downstream. Furthermore, the natural flow of migratory fish was obstructed and biodiversity across the whole basin decreased dramatically. Intensive farming of fish in ponds spread using one type of carp who thrived in eutrophic water conditions and who feeds on algae, causing widespread pollution. The pollution was exacerbated by the discharge of waste from pig farms as well as of untreated industrial and municipal sewage.[83][85] In September 2012, the Yangtze river near Chongqing turned red from pollution.[86] The erection of the Three Gorges Dam has created an impassable "iron barrier" that has led to a great reduction in the biodiversity of the river. Yangtze sturgeon use seasonal changes in the flow of the river to signal when is it time to migrate. However, these seasonal changes will be greatly reduced by dams and diversions. Other animals facing immediate threat of extinction are the baiji dolphin, narrow-ridged finless porpoise and the Yangtze alligator. These animals numbers went into freefall from the combined effects of accidental catches during fishing, river traffic, habitat loss and pollution. In 2006 the baiji dolphin became extinct; the world lost an entire genus.[87]

In 2020, a sweeping law was passed by the Chinese government to protect the ecology of the river. The new laws include strengthening ecological protection rules for hydropower projects along the river, banning chemical plants within 1 kilometer of the river, relocating polluting industries, severely restricting sand mining as well as a complete fishing ban on all the natural waterways of the river, including all its major tributaries and lakes.[88]

Contribution to ocean pollution edit

The Yangtze River produces more ocean plastic pollution than any other, according to The Ocean Cleanup, a Dutch environmental research foundation that focuses on ocean pollution. 10 Rivers transport 90% of all the plastic that reaches the oceans, the Yangtze river being the biggest polluter by far.[89][90]

Reconnecting lakes edit

In 2002 a pilot program was initiated to reconnect lakes to the Yangtze with the objective to increase biodiversity and to alleviate flooding. The first lakes to be reconnected in 2004 were Zhangdu Lake, Honghu Lake, and Tian'e-Zhou in Hubei on the middle Yangtze. In 2005 Baidang Lake in Anhui was also reconnected.[85]

Reconnecting the lakes improved water quality and fish were able to migrate from the river into the lake, replenishing their numbers and genetic stock. The trial also showed that reconnecting the lake reduced flooding. The new approach also benefitted the farmers economically. Pond farmers switched to natural fish feed, which helped them breed better-quality fish that can be sold for more, increasing their income by 30%. Based on the successful pilot project, other provincial governments emulated the experience and also reestablished connections to lakes that had previously been cut off from the river. In 2005 a Yangtze Forum has been established bringing together 13 riparian provincial governments to manage the river from source to sea.[91] In 2006 China's Ministry of Agriculture made it a national policy to reconnect the Yangtze River with its lakes. As of 2010, provincial governments in five provinces and Shanghai set up a network of 40 effective protected areas, covering 16,500 km2 (6,400 sq mi). As a result, populations of 47 threatened species increased, including the critically endangered Yangtze alligator. In the Shanghai area, reestablished wetlands now protect drinking water sources for the city. It is envisaged to extend the network throughout the entire Yangtze to eventually cover 102 areas and 185,000 km2 (71,000 sq mi). The mayor of Wuhan announced that six huge, stagnating urban lakes including the East Lake (Wuhan) would be reconnected at the cost of US$2.3 billion creating China's largest urban wetland landscape.[83][92]

Major cities along the river edit

 
Map of the Yangtze river (facing west) showing the major settlements along its banks

Crossings edit

Map all coordinates in "Yangtze River bridges and tunnels" using: OpenStreetMap

Until 1957, there were no bridges across the Yangtze River from Yibin to Shanghai. For millennia, travelers crossed the river by ferry. On occasions, the crossing may have been dangerous, as evidenced by the Zhong'anlun disaster (October 15, 1945).

The river stood as a major geographic barrier dividing northern and southern China. In the first half of the 20th century, rail passengers from Beijing to Guangzhou and Shanghai had to disembark, respectively, at Hanyang and Pukou, and cross the river by steam ferry before resuming journeys by train from Wuchang or Nanjing West.

After the founding of the People's Republic in 1949, Soviet engineers assisted in the design and construction of the Wuhan Yangtze River Bridge, a dual-use road-rail bridge, built from 1955 to 1957. It was the first bridge across the Yangtze River. The second bridge across the river that was built was a single-track railway bridge built upstream in Chongqing in 1959. The Nanjing Yangtze River Bridge, also a road-rail bridge, was the first bridge to cross the lower reaches of the Yangtze, in Nanjing. It was built after the Sino-Soviet Split and did not receive foreign assistance. Road-rail bridges were then built in Zhicheng (1971) and Chongqing (1980).

Bridge-building slowed in the 1980s before resuming in the 1990s and accelerating in the first decade of the 21st century. The Jiujiang Yangtze River Bridge was built in 1992 as part of the Beijing-Jiujiang Railway. A second bridge in Wuhan was completed in 1995. By 2005, there were a total of 56 bridges and one tunnel across the Yangtze River between Yibin and Shanghai. These include some of the longest suspension and cable-stayed bridges in the world on the Yangtze Delta: Jiangyin Suspension Bridge (1,385 m, opened in 1999), Runyang Bridge (1,490 m, opened 2005), Sutong Bridge (1,088 m, opened 2008). The rapid pace of bridge construction has continued. The city of Wuhan now has six bridges and one tunnel across the Yangtze.

A number of power line crossings have also been built across the river.

Dams edit

 
The Three Gorges Dam in 2006
 
Diagram showing dams planned for the upper reaches of the Yangtze River

As of 2007, there are two dams built on the Yangtze river: Three Gorges Dam and Gezhouba Dam. The Three Gorges Dam is the largest power station in the world by installed capacity, at 22.5 GW. Several dams are operating or are being constructed on the upper portion of the river, the Jinsha River. Among them, the Xiluodu Dam is the third largest power station in the world, and the Baihetan Dam, planned to be commissioned in 2021, will be the second largest after the Three Gorges Dam.

Tributaries edit

 
A shipyard on the banks of the Yangtze building commercial river freight boats

The Yangtze River has over 700 tributaries. The major tributaries (listed from upstream to downstream) with the locations of where they join the Yangtze are:

The Huai River flowed into the Yellow Sea until the 20th century, but now primarily discharges into the Yangtze.

Protected areas edit

Wildlife edit

The Yangtze River has a high species richness, including many endemics. A high percentage of these are seriously threatened by human activities.[93]

Fish edit

 
The two sturgeon species in the Yangtze (here Chinese sturgeon) are both seriously threatened.

As of 2011, 416 fish species are known from the Yangtze basin, including 362 that strictly are freshwater species. The remaining are also known from salt or brackish waters, such as the river's estuary or the East China Sea. This makes it one of the most species-rich rivers in Asia and by far the most species-rich in China (in comparison, the Pearl River has almost 300 fish species and the Yellow River 160).[93] 178 fish species are endemic to the Yangtze River Basin.[93] Many are only found in some section of the river basin and especially the upper reach (above Yichang, but below the headwaters in the Qinghai-Tibet Plateau) is rich with 279 species, including 147 Yangtze endemics and 97 strict endemics (found only in this part of the basin). In contrast, the headwaters, where the average altitude is above 4,500 m (14,800 ft), are only home to 14 highly specialized species, but 8 of these are endemic to the river.[93] The largest orders in the Yangtze are Cypriniformes (280 species, including 150 endemics), Siluriformes (40 species, including 20 endemics), Perciformes (50 species, including 4 endemics), Tetraodontiformes (12 species, including 1 endemic) and Osmeriformes (8 species, including 1 endemic). No other order has more than four species in the river and one endemic.[93]

Many Yangtze fish species have declined drastically and 65 were recognized as threatened in the 2009 Chinese red list.[94] Among these are three that are considered entirely extinct (Chinese paddlefish, Anabarilius liui liui and Atrilinea macrolepis), two that are extinct in the wild (Anabarilius polylepis, Schizothorax parvus), four that are critically endangered Euchiloglanis kishinouyei, Megalobrama elongata, Schizothorax longibarbus and Leiocassis longibarbus).[94][95] Additionally, both the Yangtze sturgeon and Chinese sturgeon are considered critically endangered by the IUCN. The survival of these two sturgeon may rely on the continued release of captive bred specimens.[96][97] Although still listed as critically endangered rather than extinct by both the Chinese red list and IUCN, recent reviews have found that the Chinese paddlefish is extinct.[98][99] Surveys conducted between 2006 and 2008 by ichthyologists failed to catch any, but two probable specimens were recorded with hydroacoustic signals.[100] The last definite record was an individual that was accidentally captured near Yibin in 2003 and released after having been radio tagged.[95] The Chinese sturgeon is the largest fish in the river and among the largest freshwater fish in the world, reaching a length of 5 m (16 ft); the extinct Chinese paddlefish reputedly reached as much as 7 m (23 ft), but its maximum size is labeled with considerable uncertainty.[101][102][103]

 
The silver carp is native to the river, but has (like other Asian carp) been spread through large parts of the world with aquaculture.

The largest threats to the Yangtze native fish are overfishing and habitat loss (such as building of dams and land reclamation), but pollution, destructive fishing practices (such as fishing with dynamite or poison) and introduced species also cause problems.[93] About 23 of the total freshwater fisheries in China are in the Yangtze Basin,[104] but a drastic decline in size of several important species has been recorded, as highlighted by data from lakes in the river basin.[93] In 2015, some experts recommend a 10-year fishing moratorium to allow the remaining populations to recover,[105] and in January 2020 China imposed a 10-year fishing moratorium on 332 sites along the Yangtze.[106] Dams present another serious problem, as several species in the river perform breeding migrations and most of these are non-jumpers, meaning that normal fish ladders designed for salmon are ineffective.[93] For example, the Gezhouba Dam blocked the migration of the paddlerfish and two sturgeon,[96][97][102] while also effectively splitting the Chinese high fin banded shark population into two[107] and causing the extirpation of the Yangtze population of the Japanese eel.[108] In an attempt of minimizing the effect of the dams, the Three Gorges Dam has released water to mimic the (pre-dam) natural flooding and trigger the breeding of carp species downstream.[109] In addition to dams already built in the Yangtze basin, several large dams are planned and these may present further problems for the native fauna.[109]

While many fish species native to the Yangtze are seriously threatened, others have become important in fish farming and introduced widely outside their native range. A total of 26 native fish species of the Yangtze basin are farmed.[105] Among the most important are four Asian carp: grass carp, black carp, silver carp and bighead carp. Other species that support important fisheries include northern snakehead, Chinese perch, Takifugu pufferfish (mainly in the lowermost sections) and predatory carp.[93]

Other animals edit

 
The critically endangered Chinese alligator is one of the smallest crocodilians, reaching a maximum length of about 2 m (7 ft).[110]

Due to commercial use of the river, tourism, and pollution, the Yangtze is home to several seriously threatened species of large animals (in addition to fish): the narrow-ridged finless porpoise, baiji (Yangtze river dolphin), Chinese alligator, Yangtze giant softshell turtle and Chinese giant salamander. This is the only other place besides the United States that is native to an alligator and paddlefish species. In 2010, the Yangtze population of finless porpoise was 1000 individuals. In December 2006, the Yangtze river dolphin was declared functionally extinct after an extensive search of the river revealed no signs of the dolphin's inhabitance.[111] In 2007, a large, white animal was sighted and photographed in the lower Yangtze and was tentatively presumed to be a baiji.[112] However, as there have been no confirmed sightings since 2004, the baiji is presumed to be functionally extinct at this time.[113] "Baijis were the last surviving species of a large lineage dating back seventy million years and one of only six species of freshwater dolphins." It has been argued that the extinction of the Yangtze river dolphin was a result of the completion of the Three Gorges Dam, a project that has affected many species of animals and plant life found only in the gorges area.[114]

Numerous species of land mammals are found in the Yangtze valley, but most of these are not directly associated with the river. Three exceptions are the semi-aquatic Eurasian otter, water deer and Père David's deer.[115]

 
The entirely aquatic Chinese giant salamander is the world's largest amphibian, reaching up to 1.8 m (5.9 ft) in length.[116]

In addition to the very large and exceptionally rare Yangtze giant softshell turtle, several smaller turtle species are found in the Yangtze basin, its delta and valleys. These include the Chinese box turtle, yellow-headed box turtle, Pan's box turtle, Yunnan box turtle, yellow pond turtle, Chinese pond turtle, Chinese stripe-necked turtle and Chinese softshell turtle, which all are considered threatened.[117]

More than 160 amphibian species are known from the Yangtze basin, including the world's largest, the critically endangered Chinese giant salamander.[118] It has declined drastically due to hunting (it is considered a delicacy), habitat loss and pollution.[116] The polluted Dian Lake, which is part of the upper Yangtze watershed (via Pudu River), is home to several highly threatened fish, but was also home to the Yunnan lake newt. This newt has not been seen since 1979 and is considered extinct.[119][120] In contrast, the Chinese fire belly newt from the lower Yangtze basin is one of the few Chinese salamander species to remain common and it is considered least concern by the IUCN.[120][121][122]

 
The Chinese mitten crab is a commercially important species in the Yangtze,[123] but invasive in other parts of the world.[124]

The Yangtze basin contains a large number of freshwater crab species, including several endemics.[125] A particularly rich genus in the river basin is the potamid Sinopotamon.[126] The Chinese mitten crab is catadromous (migrates between fresh and saltwater) and it has been recorded up to 1,400 km (870 mi) up the Yangtze, which is the largest river in its native range.[124] It is a commercially important species in its native range where it is farmed,[123] but the Chinese mitten crab has also been spread to Europe and North America where considered invasive.[124]

The freshwater jellyfish Craspedacusta sowerbii, now an invasive species in large parts of the world, originates from the Yangtze.[127]

Tourism edit

The Yangtze River cruise, also called the "Three Gorges cruise", is a popular tourist attraction.[citation needed]

See also edit

References edit

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Further reading edit

  • Carles, William Richard, "The Yangtse Chiang", The Geographical Journal, Vol. 12, No. 3 (Sep. 1898), pp. 225–240; Published by: Blackwell Publishing on behalf of The Royal Geographical Society (with the Institute of British Geographers)
  • Danielson, Eric N. 2004. Nanjing and the Lower Yangzi, From Past to Present, The New Yangzi River Trilogy, Vol. II. Singapore: Times Editions/Marshall Cavendish. ISBN 981-232-598-0.
  • Danielson, Eric N. 2005. The Three Gorges and The Upper Yangzi, From Past to Present, The New Yangzi River Trilogy, Vol. III. Singapore: Times Editions/Marshall Cavendish. ISBN 981-232-599-9.
  • Grover, David H. 1992 American Merchant Ships on the Yangtze, 1920–1941. Wesport, Conn.: Praeger Publishers.
  • Van Slyke, Lyman P. 1988. Yangtze: nature, history, and the river. A Portable Stanford Book. ISBN 0-201-08894-0
  • Winchester, Simon. 1996. The River at the Center of the World: A Journey Up the Yangtze and Back in Chinese Time, Holt, Henry & Company, 1996, hardcover, ISBN 0-8050-3888-4; trade paperback, Owl Publishing, 1997, ISBN 0-8050-5508-8; trade paperback, St. Martins, 2004, 432 pages, ISBN 0-312-42337-3
  • Plant, Cornell. Glimpses of the Yangze Gorges; illustrations by Ivon A. Donnelly. Kelly & Walsh, Limited, Shanghai, Hong Kong, Singapore, 1926.

External links edit

  •   Geographic data related to Yangtze at OpenStreetMap
  • Video of walking along the Yangtze River in Yichang City, Hubei Province

yangtze, several, terms, redirect, here, other, uses, long, river, disambiguation, yangzi, disambiguation, changjiang, disambiguation, yangzi, changjiang, english, ɑː, simplified, chinese, 长江, traditional, chinese, 長江, pinyin, cháng, jiāng, long, river, longes. Several terms redirect here For other uses see Long River disambiguation Yangzi disambiguation and Changjiang disambiguation The Yangtze Yangzi or Changjiang English ˈ j ae ŋ t s i or ˈ j ɑː ŋ t s i simplified Chinese 长江 traditional Chinese 長江 pinyin Chang Jiang lit long river is the longest river in Eurasia the third longest in the world and the longest in the world to flow entirely within one country It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows 6 300 km 3 915 mi in a generally easterly direction to the East China Sea 8 It is the fifth largest primary river by discharge volume in the world Its drainage basin comprises one fifth of the land area of China and is home to nearly one third of the country s population 9 Yangtze RiverDusk on the middle reaches of the Yangtze River Three Gorges 2002Map of the Yangtze River drainage basinNative nameChang Jiang Chinese LocationCountryChinaProvincesQinghai Yunnan Sichuan Hubei Hunan Jiangxi Anhui JiangsuMunicipalitiesChongqing and ShanghaiAutonomous regionTibetCitiesLuzhou Chongqing Yichang Jingzhou Yueyang Wuhan Jiujiang Anqing Tongling Wuhu Nanjing Zhenjiang Yangzhou Nantong ShanghaiPhysical characteristicsSourceDam Qu Jari Hill locationTanggula Mountains Qinghai coordinates32 36 14 N 94 30 44 E 32 60389 N 94 51222 E 32 60389 94 51222 elevation5 170 m 16 960 ft 2nd sourceUlan Moron coordinates33 23 40 N 90 53 46 E 33 39444 N 90 89611 E 33 39444 90 896113rd sourceChuma er River coordinates35 27 19 N 90 55 50 E 35 45528 N 90 93056 E 35 45528 90 930564th sourceMuluwusu River coordinates33 22 13 N 91 10 29 E 33 37028 N 91 17472 E 33 37028 91 174725th sourceBi Qu coordinates33 16 58 N 91 23 29 E 33 28278 N 91 39139 E 33 28278 91 39139MouthEast China Sea locationShanghai and Jiangsu coordinates31 23 37 N 121 58 59 E 31 39361 N 121 98306 E 31 39361 121 98306Length6 300 km 3 900 mi 1 Basin size1 808 500 km2 698 300 sq mi 2 Discharge average30 146 m3 s 1 064 600 cu ft s 3 minimum2 000 m3 s 71 000 cu ft s maximum110 000 m3 s 3 900 000 cu ft s 4 5 Discharge locationDatong hydrometric station Anhui Uppermost boundary of the ocean tide average Period 1980 2020 905 7 km3 a 28 700 m3 s 6 30 708 m3 s 1 084 400 cu ft s 2019 2020 7 Discharge locationWuhan Hankou average Period 1980 2020 711 1 km3 a 22 530 m3 s 6 Discharge locationYichang Three Gorges Dam average Period 1980 2020 428 7 km3 a 13 580 m3 s 6 Basin featuresTributaries leftYalong Min Tuo Jialing Han rightWu Yuan Zi Xiang Gan HuangpuChang Jiang Yangtze River Chang jiang in Simplified top and Traditional bottom Chinese charactersChinese nameSimplified Chinese长江Traditional Chinese長江Literal meaninglong riverTranscriptionsStandard MandarinHanyu PinyinChang JiangGwoyeu RomatzyhCharng JiangWade GilesCh ang2 Chiang1IPA ʈʂʰa ŋ tɕja ŋ WuRomanizationZan入 Kaon平XiangIPAdɒŋ13kiɒŋ44Yue CantoneseYale RomanizationCheuhng GōngJyutpingCoeng4 Gong1IPA tsʰœːŋ kɔːŋ Southern MinTai loTiong KangMiddle ChineseMiddle Chineseɖjang kaewngOld ChineseBaxter Sagart 2014 Ce N traŋ kˤroŋYangtze RiverSimplified Chinese扬子江Traditional Chinese揚子江TranscriptionsStandard MandarinHanyu PinyinYangzǐ Jiang Wade GilesYang tzu ChiangIPA ja ŋtsi tɕja ŋ WuRomanizationYang入 Tse平 Kaon平XiangIPAjɒŋ13tsɯ31kiɒŋ44Yue CantoneseJyutpingJoeng4 zi2 Gong1Tibetan nameTibetanའབ ཆ TranscriptionsWylie Bri ChuTHLDri ChuThe Yangtze has played a major role in the history culture and economy of China For thousands of years the river has been used for water irrigation sanitation transportation industry boundary marking and war The prosperous Yangtze Delta generates as much as 20 of China s GDP The Three Gorges Dam on the Yangtze is the largest hydro electric power station in the world that is in use 10 11 In mid 2014 the Chinese government announced it was building a multi tier transport network comprising railways roads and airports to create a new economic belt alongside the river 12 The Yangtze flows through a wide array of ecosystems and is habitat to several endemic and threatened species including the Chinese alligator the narrow ridged finless porpoise and also was the home of the now extinct Yangtze river dolphin or baiji and Chinese paddlefish as well as the Yangtze sturgeon which is extinct in the wild In recent years the river has suffered from industrial pollution plastic pollution 13 agricultural runoff siltation and loss of wetland and lakes which exacerbates seasonal flooding Some sections of the river are now protected as nature reserves A stretch of the upstream Yangtze flowing through deep gorges in western Yunnan is part of the Three Parallel Rivers of Yunnan Protected Areas a UNESCO World Heritage Site Contents 1 Etymology 1 1 Chinese 1 2 English 1 3 Tibetan 2 Geography 2 1 Image gallery 3 History 3 1 Geologic history 3 2 Early history 3 3 Age of steam 3 4 Navigation on the upper river 3 5 Navy ships 3 6 Contemporary events 4 Hydrology 4 1 Periodic floods 4 2 Degradation of the river 4 3 Contribution to ocean pollution 4 4 Reconnecting lakes 5 Major cities along the river 6 Crossings 7 Dams 8 Tributaries 9 Protected areas 10 Wildlife 10 1 Fish 10 2 Other animals 11 Tourism 12 See also 13 References 14 Further reading 15 External linksEtymology editChinese edit Chang Jiang 长江 長江 or Long River is the official name for the Yangtze in Mandarin Chinese However the Chinese have given different names to the upstream sections of the river up to its confluence with the Min River at Yibin Sichuan 14 15 Jinsha River Gold Sands River refers to the 2 308 km 1 434 mi of the Yangtze from Yibin upstream to the confluence with the Batang River near Yushu in Qinghai while the Tongtian River River that leads to Heaven describes the 813 km 505 mi section from Yushu up to the confluence of the Tuotuo River and the Dangqu River In Old Chinese the Yangtze was simply called Jiang Kiang 江 16 a character of phono semantic compound origin combining the water radical 氵 with the homophone 工 now pronounced gōng but kˤoŋ in Old Chinese 17 Kong was probably a word in the Austroasiatic language of local peoples such as the Yue Similar to krong in Proto Vietnamese and krung in Mon all meaning river it is related to modern Vietnamese song river and Khmer krung city on riverside whence Thai krung krung capital city not kongkea water which is from the Sanskrit root gaṅga 18 nbsp The Great River 大江 with its entrance to the East China Sea marked as the Mouth of the Yangtze 揚子江口 on the Jiangnan map in the 1754 Provincial Atlas of the Qing EmpireBy the Han dynasty Jiang had come to mean any river in Chinese and this river was distinguished as the Great River 大江 Dajiang The epithet 長 simplified version 长 meaning long was first formally applied to the river during the Six Dynasties period citation needed Various sections of the Yangtze have local names From Yibin to Yichang the river through Sichuan and Chongqing Municipality is also known as the Chuan Jiang 川江 or Sichuan River In Hubei the river is also called the Jing Jiang 荆江 荊江 or the Jing River after Jingzhou one of the Nine Provinces of ancient China In Anhui the river takes on the local name Wǎn Jiang after the shorthand name for Anhui wǎn 皖 Yangzǐ Jiang 揚子江 扬子江 or the Yangzi River from which the English name Yangtze is derived is the local name for the Lower Yangtze in the region of Yangzhou The name likely comes from an ancient ferry crossing called Yangzǐ or Yangzǐjin 揚子 揚子津 19 Europeans who arrived in the Yangtze River Delta region applied this local name to the whole river 14 The dividing site between upstream and midstream is considered to be at Yichang and that between midstream and downstream at Hukou Jiujiang 20 English edit The river was called Quian 江 and Quianshui 江水 by Marco Polo 21 and appeared on the earliest English maps as Kian or Kiam 22 23 which derives from Cantonese all recording dialects which preserved forms of the Middle Chinese pronunciation of 江 as Kaewng 16 By the mid 19th century these romanizations had standardized as Kiang Dajiang e g was rendered as Ta Kiang Keeang Koo 24 Kyang Kew 25 Kian ku 26 and related names derived from mistaking the Chinese term for the mouth of the Yangtze 江口 p Jiangkǒu as the name of the river itself The name Blue River began to be applied in the 18th century 22 apparently owing to a former name of the Dam Chu 28 or Min 30 and to analogy with the Yellow River 31 32 but it was frequently explained in early English references as a translation of Jiang 33 34 Jiangkou 24 or Yangzijiang 35 Very common in 18th and 19th century sources the name fell out of favor due to growing awareness of its lack of any connection to the river s Chinese names 36 37 and to the irony of its application to such a muddy waterway 37 38 Matteo Ricci s 1615 Latin account included descriptions of the Ianſu and Ianſuchian 39 The posthumous account s translation of the name as Fils de la Mer Son of the Ocean 39 40 shows that Ricci who by the end of his life was fluent in literary Chinese was introduced to it as the homophonic 洋子江 rather than the usual 揚子江 Further although railroads and the Shanghai concessions subsequently turned it into a backwater Yangzhou was the lower river s principal port for much of the Qing dynasty directing Liangjiang s important salt monopoly and connecting the Yangtze with the Grand Canal to Beijing That connection also made it one of the Yellow River s principal ports between the floods of 1344 and the 1850s during which time the Yellow River ran well south of Shandong and discharged into the ocean a mere few hundred kilometers from the mouth of the Yangtze 36 26 By 1800 English cartographers such as Aaron Arrowsmith had adopted the French style of the name 41 as Yang tse or Yang tse Kiang 42 The British diplomat Thomas Wade emended this to Yang tzu Chiang as part of his formerly popular romanization of Chinese based on the Beijing dialect instead of Nanjing s and first published in 1867 The spellings Yangtze and Yangtze Kiang was a compromise between the two methods adopted at the 1906 Imperial Postal Conference in Shanghai which established postal romanization Hanyu Pinyin was adopted by the PRC s First Congress in 1958 but it was not widely employed in English outside mainland China prior to the normalization of diplomatic relations between the United States and the PRC in 1979 since that time the spelling Yangzi has also been used Tibetan edit The source and upper reaches of the Yangtze are located in ethnic Tibetan areas of Qinghai 43 In Tibetan the Tuotuo headwaters are the Machu Tibetan ར ཆ Wylie rma chu lit Red Water The Tongtian is the Drichu འབ ཆ Bri Chu literally Water of the Female Yak transliterated into Chinese 直曲 pinyin Zhiqu Geography edit nbsp A topographical map of China depicting the Yangtze s steady course and the former route of the Yellow River south of Shandong to the Huai mouth after its stabilization by the Grand Eunuch Li Xing s public works following the 1494 floodThe river originates from several tributaries in the eastern part of the Tibetan Plateau two of which are commonly referred to as the source Traditionally the Chinese government has recognized the source as the Tuotuo tributary at the base of a glacier lying on the west of Geladandong Mountain in the Tanggula Mountains This source is found at 33 25 44 N 91 10 57 E 33 42889 N 91 18250 E 33 42889 91 18250 and while not the furthest source of the Yangtze it is the highest source at 5 342 m 17 526 ft above sea level The true source of the Yangtze hydrologically the longest river distance from the sea is at Jari Hill at the head of the Dam Qu tributary approximately 325 km 202 mi southeast of Geladandong 44 This source was only discovered in the late 20th century and lies in wetlands at 32 36 14 N 94 30 44 E 32 60389 N 94 51222 E 32 60389 94 51222 and 5 170 m 16 960 ft above sea level just southeast of Chadan Township in Zadoi County Yushu Prefecture Qinghai 45 As the historical spiritual source of the Yangtze the Geladandong source is still commonly referred to as the source of the Yangtze since the discovery of the Jari Hill source 44 These tributaries join and the river then runs eastward through Qinghai Tsinghai turning southward down a deep valley at the border of Sichuan Szechwan and Tibet to reach Yunnan In the course of this valley the river s elevation drops from above 5 000 m 16 000 ft to less than 1 000 m 3 300 ft Thus over the first 2 600 km 1 600 mi of its length the river has fallen more than 5 200 m 17 000 ft 46 It enters the basin of Sichuan at Yibin While in the Sichuan basin it receives several mighty tributaries increasing its water volume significantly It then cuts through Mount Wushan bordering Chongqing and Hubei to create the famous Three Gorges Eastward of the Three Gorges Yichang is the first city on the Yangtze Plain After entering Hubei province the Yangtze receives water from a number of lakes The largest of these lakes is Dongting Lake which is located on the border of Hunan and Hubei provinces and is the outlet for most of the rivers in Hunan At Wuhan it receives its biggest tributary the Han River bringing water from its northern basin as far as Shaanxi At the northern tip of Jiangxi province Lake Poyang the biggest freshwater lake in China merges into the river The river then runs through Anhui and Jiangsu receiving more water from innumerable smaller lakes and rivers and finally reaches the East China Sea at Shanghai Four of China s five main freshwater lakes contribute their waters to the Yangtze River Traditionally the upstream part of the Yangtze River refers to the section from Yibin to Yichang the middle part refers to the section from Yichang to Hukou County where Lake Poyang meets the river the downstream part is from Hukou to Shanghai The origin of the Yangtze River has been dated by some geologists to about 45 million years ago in the Eocene 47 but this dating has been disputed by whom 48 49 Image gallery edit nbsp The glaciers of the Tanggula Mountains the traditional source of the Yangtze River nbsp The Tuotuo River a headwater stream of the Yangtze River known in Tibetan as Maqu or the Red River nbsp The first turn of the Yangtze at Shigu 石鼓 in Yunnan where the river turns 180 degrees from southbound to northbound nbsp Tiger Leaping Gorge in Yunnan nbsp Narrowest point of the Tiger Leaping Gorge near Lijiang downstream from Shigu nbsp The Jinsha Golden Sands River in Yunnan nbsp Qutang Gorge one of the Three Gorges nbsp Wu Gorge one of the Three Gorges nbsp Xiling Gorge one of the Three Gorges nbsp Three Gorges Dam in Hubei the world s largest hydroelectric project nbsp Golden Island on the Yangtze near Zhenjiang in Jiangsu as it was in the mid 19th century 50 History editGeologic history edit Although the mouth of the Yellow River has fluctuated widely north and south of the Shandong peninsula within the historical record the Yangtze has remained largely static Based on studies of sedimentation rates however it is unlikely that the present discharge site predates the late Miocene c 11 Ma 51 Prior to this its headwaters drained south into the Gulf of Tonkin along or near the course of the present Red River 52 nbsp Afternoon in the jagged mountains rising from the Yangtze River gorgeEarly history edit Further information Baiyue state of Wu state of Yue state of Chu Yangtze civilization and Southward expansion of the Han Dynasty The Yangtze River is important to the cultural origins of southern China and Japan 53 Human activity has been verified in the Three Gorges area as far back as 27 000 years ago 54 and by the 5th millennium BC the lower Yangtze was a major population center occupied by the Hemudu and Majiabang cultures both among the earliest cultivators of rice By the 3rd millennium BC the successor Liangzhu culture showed evidence of influence from the Longshan peoples of the North China Plain 55 What is now thought of as Chinese culture developed along the more fertile Yellow River basin the Yue people of the lower Yangtze possessed very different traditions blackening their teeth cutting their hair short tattooing their bodies and living in small settlements among bamboo groves 56 and were considered barbarous by the northerners The Central Yangtze valley was home to sophisticated Neolithic cultures 57 Later it became the earliest part of the Yangtze valley to be integrated into the North Chinese cultural sphere Northern Chinese were active there since the Bronze Age 58 nbsp A map of the Warring States around 350 BC showing the former coastline of the Yangtze deltaIn the lower Yangtze two Yue tribes the Gouwu in southern Jiangsu and the Yuyue in northern Zhejiang display increasing Zhou i e North Chinese influence starting in the 9th century BC Traditional accounts 59 credit these changes to northern refugees Taibo and Zhongyong in Wu and Wuyi in Yue who assumed power over the local tribes though these are generally assumed to be myths invented to legitimate them to other Zhou rulers As the kingdoms of Wu and Yue they were famed as fishers shipwrights and sword smiths Adopting Chinese characters political institutions and military technology they were among the most powerful states during the later Zhou In the middle Yangtze the state of Jing seems to have begun in the upper Han River valley a minor Zhou polity but it adapted to native culture as it expanded south and east into the Yangtze valley In the process it changed its name to Chu 60 Whether native or nativizing the Yangtze states held their own against the northern Chinese homeland some lists credit them with three of the Spring and Autumn period s Five Hegemons and one of the Warring States Four Lords They fell in against themselves however Chu s growing power led its rival Jin to support Wu as a counter Wu successfully sacked Chu s capital Ying in 506 BC but Chu subsequently supported Yue in its attacks against Wu s southern flank In 473 BC King Goujian of Yue fully annexed Wu and moved his court to its eponymous capital at modern Suzhou In 333 BC Chu finally united the lower Yangtze by annexing Yue whose royal family was said to have fled south and established the Minyue kingdom in Fujian Qin was able to unite China by first subduing Ba and Shu on the upper Yangtze in modern Sichuan giving them a strong base to attack Chu s settlements along the river The state of Qin conquered the central Yangtze region previous heartland of Chu in 278 BC and incorporated the region into its expanding empire Qin then used its connections along the Yangtze River the Xiang River to expand China into Hunan Jiangxi and Guangdong setting up military commanderies along the main lines of communication At the collapse of the Qin Dynasty these southern commanderies became the independent Nanyue Empire under Zhao Tuo while Chu and Han vied with each other for control of the north Since the Han dynasty the region of the Yangtze River grew ever more important to China s economy The establishment of irrigation systems the most famous one is Dujiangyan northwest of Chengdu built during the Warring States period made agriculture very stable and productive eventually exceeding even the Yellow River region The Qin and Han empires were actively engaged in the agricultural colonization of the Yangtze lowlands maintaining a system of dikes to protect farmland from seasonal floods 61 By the Song dynasty the area along the Yangtze had become among the wealthiest and most developed parts of the country especially in the lower reaches of the river Early in the Qing dynasty the region called Jiangnan that includes the southern part of Jiangsu the northern part of Zhejiang and the southeastern part of Anhui provided 1 3 1 2 of the nation s revenues The Yangtze has long been the backbone of China s inland water transportation system which remained particularly important for almost two thousand years until the construction of the national railway network during the 20th century The Grand Canal connects the lower Yangtze with the major cities of the Jiangnan region south of the river Wuxi Suzhou Hangzhou and with northern China all the way from Yangzhou to Beijing The less well known ancient Lingqu Canal connecting the upper Xiang River with the headwaters of the Guijiang allowed a direct water connection from the Yangtze Basin to the Pearl River Delta 62 Historically the Yangtze became the political boundary between north China and south China several times see History of China because of the difficulty of crossing the river This occurred notably during the Southern and Northern Dynasties and the Southern Song Many battles took place along the river the most famous being the Battle of Red Cliffs in 208 AD during the Three Kingdoms period The Yangtze was the site of naval battles between the Song dynasty and Jurchen Jin during the Jin Song wars In the Battle of Caishi of 1161 the ships of the Jin emperor Wanyan Liang clashed with the Song fleet on the Yangtze Song soldiers fired bombs of lime and sulfur using trebuchets at the Jurchen warships The battle was a Song victory that halted the invasion by the Jin 63 64 The Battle of Tangdao was another Yangtze naval battle in the same year Politically Nanjing was the capital of China several times although most of the time its territory only covered the southeastern part of China such as the Wu kingdom in the Three Kingdoms period the Eastern Jin Dynasty and during the Southern and Northern Dynasties and Five Dynasties and Ten Kingdoms periods Only the Ming occupied most parts of China from their capital at Nanjing though it later moved the capital to Beijing The ROC capital was located in Nanjing in the periods 1911 12 1927 37 and 1945 49 nbsp Ten Thousand Miles of the Yangtze River a Ming dynasty landscape painting Age of steam edit Main article China Station The Jardine the first steamship to sail the river was built for Jardine Matheson amp Co in 1835 This small vessel was to carry passengers and mail between Lintin Island Macao and Huangpu However the Chinese draconian in their application of the rules relating to foreign vessels were unhappy about a fire ship steaming up the Canton River The acting Viceroy of Liangguang issued an edict warning that she would be fired on if she attempted the trip 65 On the Jardine s first trial run from Lintin Island the forts on both sides of the Bogue opened fire and she was forced to turn back The Chinese authorities issued a further warning insisting that the ship leave Chinese waters The Jardine in any case needed repairs and was sent to Singapore 66 Subsequently Lord Palmerston the Foreign Secretary decided mainly on the suggestions of William Jardine to declare war on China In mid 1840 a large fleet of warships appeared on the China coast and with the first cannonball fired at a British ship the Royal Saxon the British started the first of the Opium Wars Royal Navy warships destroyed numerous shore batteries and Chinese warships laying waste to several coastal forts along the way Eventually they pushed their way up north close enough to threaten the Imperial Palace in Beijing itself 65 The China Navigation Company was an early shipping company founded in 1876 in London initially to trade up the Yangtze River from their Shanghai base with passengers and cargo Chinese coastal trade started shortly after and in 1883 a regular service to Australia was initiated 65 source source source source source source Yangtze River steam boats filmed in 1937 nbsp USS LuzonNavigation on the upper river edit nbsp Yangtze in 1915 nbsp Cruise boats on Yangtze nbsp A vehicle carrier on Yangtze nbsp A container carrier on YangtzeSteamers came late to the upper river the section stretching from Yichang to Chongqing Freshets from Himalayan snowmelt created treacherous seasonal currents But summer was better navigationally and the three gorges described as a 150 mile passage which is like the narrow throat of an hourglass posed hazardous threats of crosscurrents whirlpools and eddies creating significant challenges to steamship efforts Furthermore Chongqing is 700 800 feet above sea level requiring powerful engines to make the upriver climb Junk travel accomplished the upriver feat by employing 70 80 trackers men hitched to hawsers who physically pulled ships upriver through some of the most risky and deadly sections of the three gorges 67 Achibald John Little took an interest in Upper Yangtze navigation when in 1876 the Chefoo Convention opened Chongqing to consular residence but stipulated that foreign trade might only commence once steamships had succeeded in ascending the river to that point Little formed the Upper Yangtze Steam Navigation Co Ltd and built Kuling but his attempts to take the vessel further upriver than Yichang were thwarted by the Chinese authorities who were concerned about the potential loss of transit duties competition to their native junk trade and physical damage to their crafts caused by steamship wakes Kuling was sold to China Merchants Steam Navigation Company for lower river service In 1890 the Chinese government agreed to open Chongqing to foreign trade as long as it was restricted to native crafts In 1895 the Treaty of Shimonoseki provided a provision which opened Chongqing fully to foreign trade Little took up residence in Chongqing and built Leechuan to tackle the gorges in 1898 In March Leechuan completed the upriver journey to Chongqing but not without the assistance of trackers Leechuan was not designed for cargo or passengers and if Little wanted to take his vision one step further he required an expert pilot 68 In 1898 Little persuaded Captain Samuel Cornell Plant to come out to China to lend his expertise Captain Plant had just completed navigation of Persia s Upper Karun River and took up Little s offer to assess the Upper Yangtze on Leechuan at the end of 1898 With Plant s design input Little had SS Pioneer built with Plant in command In June 1900 Plant was the first to successfully pilot a merchant steamer on the Upper Yangtze from Yichang to Chongqing Pioneer was sold to Royal Navy after its first run due to threat from the Boxer Rebellion and renamed HMS Kinsha Germany s steamship effort that same year on SS Suixing ended in catastrophe On Suixing s maiden voyage the vessel hit a rock and sunk killing its captain and ending realistic hopes of regular commercial steam service on the Upper Yangtze In 1908 local Sichuan merchants and their government partnered with Captain Plant to form Sichuan Steam Navigation Company becoming the first successful service between Yichang and Chongqing Captain Plant designed and commanded its two ships SS Shutung and SS Shuhun Other Chinese vessels came onto the run and by 1915 foreign ships expressed their interest too Plant was appointed by Chinese Maritime Customs Service as First Senior River Inspector in 1915 In this role Plant installed navigational marks and established signaling systems He also wrote Handbook for the Guidance of Shipmasters on the Ichang Chungking Section of the Yangtze River a detailed and illustrated account of the Upper Yangtze s currents rocks and other hazards with navigational instruction Plant trained hundreds of Chinese and foreign pilots and issued licenses and worked with the Chinese government to make the river safer in 1917 by removing some of the most difficult obstacles and threats with explosives In August 1917 British Asiatic Petroleum became the first foreign merchant steamship on the Upper Yangtze Commercial firms Robert Dollar Company Jardine Matheson Butterfield and Swire and Standard Oil added their own steamers on the river between 1917 and 1919 Between 1918 and 1919 Sichuan warlord violence and escalating civil war put Sichuan Steam Navigational Company out of business 69 Shutung was commandeered by warlords and Shuhun was brought down river to Shanghai for safekeeping 70 In 1921 when Captain Plant died at sea while returning home to England a Plant Memorial Fund was established to perpetuate Plant s name and contributions to Upper Yangtze navigation The largest shipping companies in service Butterfield amp Swire Jardine Matheson Standard Oil Mackenzie amp Co Asiatic Petroleum Robert Dollar China Merchants S N Co and British American Tobacco Co contributed alongside international friends and Chinese pilots In 1924 a 50 foot granite pyramidal obelisk was erected in Xintan on the site of Captain Plant s home in a Chinese community of pilots and junk owners One face of the monument is inscribed in Chinese and another in English Though recently relocated to higher ground ahead of the Three Gorges Dam the monument still stands overlooking the Upper Yangtze River near Yichang a rare collective tribute to a westerner in China 71 72 Standard Oil ran the tankers Mei Ping Mei An and Mei Hsia which were collectively destroyed on December 12 1937 when Japanese warplanes bombed and sank the U S S Panay One of the Standard Oil captains who survived this attack had served on the Upper River for 14 years 73 Navy ships edit nbsp The Imperial Japanese Navy armored cruiser Izumo in Shanghai in 1937 She sank riverboats on the Yangtze in 1941 See also USS Asheville PG 21 Yangtze Patrol and Yangtze Incident Contemporary events edit Chinese Communist Party chairman Mao Zedong took staged swims in the river in 1956 and 1966 at Wuhan in publicity stunts to demonstrate his health also starting a swimming craze through party propaganda 74 75 In August 2019 Welsh adventurer Ash Dykes became the first person to complete the 4 000 mile 6 437 km trek along the course of the river walking for 352 days from its source to its mouth 76 Hydrology editPeriodic floods edit See also List of deadliest floods Tens of millions of people live in the floodplain of the Yangtze valley an area that naturally floods every summer and is habitable only because it is protected by river dikes The floods large enough to overflow the dikes have caused great distress to those who live and farm there Floods of note include those of 1931 1954 and 1998 The 1931 Central China floods or the Central China floods of 1931 were a series of floods that are generally considered among the deadliest natural disasters ever recorded and almost certainly the deadliest of the 20th century when pandemics and famines are discounted Estimates of the total death toll range from 145 000 to between 3 7 million and 4 million 77 78 The Yangtze flooded again in 1935 causing great loss of life From June to September 1954 the Yangtze River Floods were a series of catastrophic floodings that occurred mostly in Hubei Province Due to unusually high volume of precipitation as well as an extraordinarily long rainy season in the middle stretch of the Yangtze River late in the spring of 1954 the river started to rise above its usual level in around late June Despite efforts to open three important flood gates to alleviate the rising water by diverting it the flood level continued to rise until it hit the historic high of 44 67 m in Jingzhou Hubei and 29 73 m in Wuhan The number of dead from this flood was estimated at 33 000 including those who died of plague in the aftermath of the disaster The 1998 Yangtze River floods were a series of major floods that lasted from middle of June to the beginning of September 1998 along the Yangtze 79 In the summer of 1998 China experienced massive flooding of parts of the Yangtze River resulting in 3 704 dead 15 million homeless and 26 billion in economic loss 80 Other sources report a total loss of 4150 people and 180 million people were affected 81 A staggering 25 million acres 100 000 km2 were evacuated 13 3 million houses were damaged or destroyed The floods caused 26 billion in damages 81 The 2016 China floods caused US 22 billion in damages In 2020 the Yangtze river saw the heaviest rainfall since 1961 with a 79 increase in June and July compared to the average for the period over the previous 41 years A new theory suggested that abrupt reduction in emissions of greenhouse gases and aerosols caused by shutdowns during the COVID 19 pandemic was a key cause of the intense downpours Over the past decades rainfall had decreased due to increase of aerosols in the atmosphere and lower greenhouse gas emissions in 2020 caused the opposite effect a major increase in rain Such a dramatic reduction of aerosols caused a dramatic change in the various components of the climate system but such sudden change of the climate system would be very different from changes in response to continuous but gradual policy driven emissions reductions 82 Degradation of the river edit See also Water resources in China Water quality nbsp Barges on the riverBeginning in the 1950s dams and dikes were built for flood control land reclamation irrigation and control of diseases vectors such as blood flukes that caused Schistosomiasis More than a hundred lakes were thusly cut off from the main river 83 There were gates between the lakes that could be opened during floods However farmers and settlements encroached on the land next to the lakes although it was forbidden to settle there When floods came it proved impossible to open the gates since it would have caused substantial destruction 84 Thus the lakes partially or completely dried up For example Baidang Lake shrunk from 100 square kilometers 39 sq mi in the 1950s to 40 square kilometers 15 sq mi in 2005 Zhangdu Lake dwindled to one quarter of its original size Natural fisheries output in the two lakes declined sharply Only a few large lakes such as Poyang Lake and Dongting Lake remained connected to the Yangtze Cutting off the other lakes that had served as natural buffers for floods increased the damage done by floods further downstream Furthermore the natural flow of migratory fish was obstructed and biodiversity across the whole basin decreased dramatically Intensive farming of fish in ponds spread using one type of carp who thrived in eutrophic water conditions and who feeds on algae causing widespread pollution The pollution was exacerbated by the discharge of waste from pig farms as well as of untreated industrial and municipal sewage 83 85 In September 2012 the Yangtze river near Chongqing turned red from pollution 86 The erection of the Three Gorges Dam has created an impassable iron barrier that has led to a great reduction in the biodiversity of the river Yangtze sturgeon use seasonal changes in the flow of the river to signal when is it time to migrate However these seasonal changes will be greatly reduced by dams and diversions Other animals facing immediate threat of extinction are the baiji dolphin narrow ridged finless porpoise and the Yangtze alligator These animals numbers went into freefall from the combined effects of accidental catches during fishing river traffic habitat loss and pollution In 2006 the baiji dolphin became extinct the world lost an entire genus 87 In 2020 a sweeping law was passed by the Chinese government to protect the ecology of the river The new laws include strengthening ecological protection rules for hydropower projects along the river banning chemical plants within 1 kilometer of the river relocating polluting industries severely restricting sand mining as well as a complete fishing ban on all the natural waterways of the river including all its major tributaries and lakes 88 Contribution to ocean pollution edit The Yangtze River produces more ocean plastic pollution than any other according to The Ocean Cleanup a Dutch environmental research foundation that focuses on ocean pollution 10 Rivers transport 90 of all the plastic that reaches the oceans the Yangtze river being the biggest polluter by far 89 90 Reconnecting lakes edit In 2002 a pilot program was initiated to reconnect lakes to the Yangtze with the objective to increase biodiversity and to alleviate flooding The first lakes to be reconnected in 2004 were Zhangdu Lake Honghu Lake and Tian e Zhou in Hubei on the middle Yangtze In 2005 Baidang Lake in Anhui was also reconnected 85 Reconnecting the lakes improved water quality and fish were able to migrate from the river into the lake replenishing their numbers and genetic stock The trial also showed that reconnecting the lake reduced flooding The new approach also benefitted the farmers economically Pond farmers switched to natural fish feed which helped them breed better quality fish that can be sold for more increasing their income by 30 Based on the successful pilot project other provincial governments emulated the experience and also reestablished connections to lakes that had previously been cut off from the river In 2005 a Yangtze Forum has been established bringing together 13 riparian provincial governments to manage the river from source to sea 91 In 2006 China s Ministry of Agriculture made it a national policy to reconnect the Yangtze River with its lakes As of 2010 provincial governments in five provinces and Shanghai set up a network of 40 effective protected areas covering 16 500 km2 6 400 sq mi As a result populations of 47 threatened species increased including the critically endangered Yangtze alligator In the Shanghai area reestablished wetlands now protect drinking water sources for the city It is envisaged to extend the network throughout the entire Yangtze to eventually cover 102 areas and 185 000 km2 71 000 sq mi The mayor of Wuhan announced that six huge stagnating urban lakes including the East Lake Wuhan would be reconnected at the cost of US 2 3 billion creating China s largest urban wetland landscape 83 92 Major cities along the river editSee also Category Populated places on the Yangtze River nbsp Map of the Yangtze river facing west showing the major settlements along its banksYushu Panzhihua Yibin Luzhou Hejiang Chongqing Fuling Fengdu Wanzhou Yichang Yidu Jingzhou Shashi Shishou Yueyang Xianning Wuhan Ezhou Huangshi Huanggang Chaohu Chizhou Jiujiang Anqing Tongling Wuhu Chuzhou Ma anshan Taizhou Yangzhou Zhenjiang Nanjing Changzhou Nantong ShanghaiCrossings editMain articles Bridges and tunnels across the Yangtze River and Yangtze River power line crossings Map all coordinates in Yangtze River bridges and tunnels using OpenStreetMapDownload coordinates as KML GPX all coordinates GPX primary coordinates GPX secondary coordinates Until 1957 there were no bridges across the Yangtze River from Yibin to Shanghai For millennia travelers crossed the river by ferry On occasions the crossing may have been dangerous as evidenced by the Zhong anlun disaster October 15 1945 The river stood as a major geographic barrier dividing northern and southern China In the first half of the 20th century rail passengers from Beijing to Guangzhou and Shanghai had to disembark respectively at Hanyang and Pukou and cross the river by steam ferry before resuming journeys by train from Wuchang or Nanjing West After the founding of the People s Republic in 1949 Soviet engineers assisted in the design and construction of the Wuhan Yangtze River Bridge a dual use road rail bridge built from 1955 to 1957 It was the first bridge across the Yangtze River The second bridge across the river that was built was a single track railway bridge built upstream in Chongqing in 1959 The Nanjing Yangtze River Bridge also a road rail bridge was the first bridge to cross the lower reaches of the Yangtze in Nanjing It was built after the Sino Soviet Split and did not receive foreign assistance Road rail bridges were then built in Zhicheng 1971 and Chongqing 1980 Bridge building slowed in the 1980s before resuming in the 1990s and accelerating in the first decade of the 21st century The Jiujiang Yangtze River Bridge was built in 1992 as part of the Beijing Jiujiang Railway A second bridge in Wuhan was completed in 1995 By 2005 there were a total of 56 bridges and one tunnel across the Yangtze River between Yibin and Shanghai These include some of the longest suspension and cable stayed bridges in the world on the Yangtze Delta Jiangyin Suspension Bridge 1 385 m opened in 1999 Runyang Bridge 1 490 m opened 2005 Sutong Bridge 1 088 m opened 2008 The rapid pace of bridge construction has continued The city of Wuhan now has six bridges and one tunnel across the Yangtze A number of power line crossings have also been built across the river nbsp Wuhan Yangtze River Bridge the first bridge crossing Yangtze was completed in 1957 nbsp The Nanjing Yangtze River Bridge a beam bridge was completed in 1968 nbsp The Jiujiang Yangtze River Bridge an arch bridge was completed in 1992 nbsp The Yichang Yangtze Highway Bridge a suspension bridge near the Gezhouba Dam lock was completed in 1996 nbsp The Sutong Yangtze River Bridge between Nantong and Suzhou was one of the longest cable stayed bridges in the world when it was completed in 2008 nbsp The Caiyuanba Bridge an arch bridge in Chongqing was completed in 2007 nbsp The cable stayed Anqing Yangtze River Bridge at Anqing was completed in 2005 nbsp Wuhan Metro Line 2 is the first underground rail line crossing the Yangtze River Dams edit nbsp The Three Gorges Dam in 2006 nbsp Diagram showing dams planned for the upper reaches of the Yangtze RiverAs of 2007 there are two dams built on the Yangtze river Three Gorges Dam and Gezhouba Dam The Three Gorges Dam is the largest power station in the world by installed capacity at 22 5 GW Several dams are operating or are being constructed on the upper portion of the river the Jinsha River Among them the Xiluodu Dam is the third largest power station in the world and the Baihetan Dam planned to be commissioned in 2021 will be the second largest after the Three Gorges Dam Tributaries edit nbsp A shipyard on the banks of the Yangtze building commercial river freight boatsThe Yangtze River has over 700 tributaries The major tributaries listed from upstream to downstream with the locations of where they join the Yangtze are Yalong River Panzhihua Sichuan Min River Yibin Sichuan Tuo River Luzhou Sichuan Chishui River Hejiang Sichuan Jialing River Chongqing Wu River Fuling Chongqing Qing River Yidu Hubei Yuan River via Dongting Lake Lishui River via Dongting Lake Zi River via Dongting Lake Xiang River Yueyang Hunan Han River Wuhan Hubei Gan River near Jiujiang Jiangxi Shuiyang River Dangtu Anhui Qingyi River Wuhu Anhui Chao Lake water system Chaohu Anhui Lake Tai water system Shanghai The Huai River flowed into the Yellow Sea until the 20th century but now primarily discharges into the Yangtze nbsp Gan River in Jiangxi nbsp Han River in Hubei nbsp Lake Dongting and the Yuan Zi Li and Xiang Rivers in Hunan nbsp Wu River in Guizhou nbsp Jialing River in eastern Sichuan and Chongqing Municipality nbsp Min River in central Sichuan nbsp Yalong River in western SichuanProtected areas editSanjiangyuan Three Rivers Sources National Nature Reserve in Qinghai Three Parallel Rivers of YunnanWildlife editThe Yangtze River has a high species richness including many endemics A high percentage of these are seriously threatened by human activities 93 Fish edit nbsp The two sturgeon species in the Yangtze here Chinese sturgeon are both seriously threatened As of 2011 update 416 fish species are known from the Yangtze basin including 362 that strictly are freshwater species The remaining are also known from salt or brackish waters such as the river s estuary or the East China Sea This makes it one of the most species rich rivers in Asia and by far the most species rich in China in comparison the Pearl River has almost 300 fish species and the Yellow River 160 93 178 fish species are endemic to the Yangtze River Basin 93 Many are only found in some section of the river basin and especially the upper reach above Yichang but below the headwaters in the Qinghai Tibet Plateau is rich with 279 species including 147 Yangtze endemics and 97 strict endemics found only in this part of the basin In contrast the headwaters where the average altitude is above 4 500 m 14 800 ft are only home to 14 highly specialized species but 8 of these are endemic to the river 93 The largest orders in the Yangtze are Cypriniformes 280 species including 150 endemics Siluriformes 40 species including 20 endemics Perciformes 50 species including 4 endemics Tetraodontiformes 12 species including 1 endemic and Osmeriformes 8 species including 1 endemic No other order has more than four species in the river and one endemic 93 Many Yangtze fish species have declined drastically and 65 were recognized as threatened in the 2009 Chinese red list 94 Among these are three that are considered entirely extinct Chinese paddlefish Anabarilius liui liui and Atrilinea macrolepis two that are extinct in the wild Anabarilius polylepis Schizothorax parvus four that are critically endangered Euchiloglanis kishinouyei Megalobrama elongata Schizothorax longibarbus and Leiocassis longibarbus 94 95 Additionally both the Yangtze sturgeon and Chinese sturgeon are considered critically endangered by the IUCN The survival of these two sturgeon may rely on the continued release of captive bred specimens 96 97 Although still listed as critically endangered rather than extinct by both the Chinese red list and IUCN recent reviews have found that the Chinese paddlefish is extinct 98 99 Surveys conducted between 2006 and 2008 by ichthyologists failed to catch any but two probable specimens were recorded with hydroacoustic signals 100 The last definite record was an individual that was accidentally captured near Yibin in 2003 and released after having been radio tagged 95 The Chinese sturgeon is the largest fish in the river and among the largest freshwater fish in the world reaching a length of 5 m 16 ft the extinct Chinese paddlefish reputedly reached as much as 7 m 23 ft but its maximum size is labeled with considerable uncertainty 101 102 103 nbsp The silver carp is native to the river but has like other Asian carp been spread through large parts of the world with aquaculture The largest threats to the Yangtze native fish are overfishing and habitat loss such as building of dams and land reclamation but pollution destructive fishing practices such as fishing with dynamite or poison and introduced species also cause problems 93 About 2 3 of the total freshwater fisheries in China are in the Yangtze Basin 104 but a drastic decline in size of several important species has been recorded as highlighted by data from lakes in the river basin 93 In 2015 some experts recommend a 10 year fishing moratorium to allow the remaining populations to recover 105 and in January 2020 China imposed a 10 year fishing moratorium on 332 sites along the Yangtze 106 Dams present another serious problem as several species in the river perform breeding migrations and most of these are non jumpers meaning that normal fish ladders designed for salmon are ineffective 93 For example the Gezhouba Dam blocked the migration of the paddlerfish and two sturgeon 96 97 102 while also effectively splitting the Chinese high fin banded shark population into two 107 and causing the extirpation of the Yangtze population of the Japanese eel 108 In an attempt of minimizing the effect of the dams the Three Gorges Dam has released water to mimic the pre dam natural flooding and trigger the breeding of carp species downstream 109 In addition to dams already built in the Yangtze basin several large dams are planned and these may present further problems for the native fauna 109 While many fish species native to the Yangtze are seriously threatened others have become important in fish farming and introduced widely outside their native range A total of 26 native fish species of the Yangtze basin are farmed 105 Among the most important are four Asian carp grass carp black carp silver carp and bighead carp Other species that support important fisheries include northern snakehead Chinese perch Takifugu pufferfish mainly in the lowermost sections and predatory carp 93 Other animals edit nbsp The critically endangered Chinese alligator is one of the smallest crocodilians reaching a maximum length of about 2 m 7 ft 110 Due to commercial use of the river tourism and pollution the Yangtze is home to several seriously threatened species of large animals in addition to fish the narrow ridged finless porpoise baiji Yangtze river dolphin Chinese alligator Yangtze giant softshell turtle and Chinese giant salamander This is the only other place besides the United States that is native to an alligator and paddlefish species In 2010 the Yangtze population of finless porpoise was 1000 individuals In December 2006 the Yangtze river dolphin was declared functionally extinct after an extensive search of the river revealed no signs of the dolphin s inhabitance 111 In 2007 a large white animal was sighted and photographed in the lower Yangtze and was tentatively presumed to be a baiji 112 However as there have been no confirmed sightings since 2004 the baiji is presumed to be functionally extinct at this time 113 Baijis were the last surviving species of a large lineage dating back seventy million years and one of only six species of freshwater dolphins It has been argued that the extinction of the Yangtze river dolphin was a result of the completion of the Three Gorges Dam a project that has affected many species of animals and plant life found only in the gorges area 114 Numerous species of land mammals are found in the Yangtze valley but most of these are not directly associated with the river Three exceptions are the semi aquatic Eurasian otter water deer and Pere David s deer 115 nbsp The entirely aquatic Chinese giant salamander is the world s largest amphibian reaching up to 1 8 m 5 9 ft in length 116 In addition to the very large and exceptionally rare Yangtze giant softshell turtle several smaller turtle species are found in the Yangtze basin its delta and valleys These include the Chinese box turtle yellow headed box turtle Pan s box turtle Yunnan box turtle yellow pond turtle Chinese pond turtle Chinese stripe necked turtle and Chinese softshell turtle which all are considered threatened 117 More than 160 amphibian species are known from the Yangtze basin including the world s largest the critically endangered Chinese giant salamander 118 It has declined drastically due to hunting it is considered a delicacy habitat loss and pollution 116 The polluted Dian Lake which is part of the upper Yangtze watershed via Pudu River is home to several highly threatened fish but was also home to the Yunnan lake newt This newt has not been seen since 1979 and is considered extinct 119 120 In contrast the Chinese fire belly newt from the lower Yangtze basin is one of the few Chinese salamander species to remain common and it is considered least concern by the IUCN 120 121 122 nbsp The Chinese mitten crab is a commercially important species in the Yangtze 123 but invasive in other parts of the world 124 The Yangtze basin contains a large number of freshwater crab species including several endemics 125 A particularly rich genus in the river basin is the potamid Sinopotamon 126 The Chinese mitten crab is catadromous migrates between fresh and saltwater and it has been recorded up to 1 400 km 870 mi up the Yangtze which is the largest river in its native range 124 It is a commercially important species in its native range where it is farmed 123 but the Chinese mitten crab has also been spread to Europe and North America where considered invasive 124 The freshwater jellyfish Craspedacusta sowerbii now an invasive species in large parts of the world originates from the Yangtze 127 Tourism editThe Yangtze River cruise also called the Three Gorges cruise is a popular tourist attraction citation needed See also editCategory Tributaries of the Yangtze River List of rivers in China Northern and Southern China traditionally divided by the Huai River but sometimes considered to separate at the Yangtze Rediscovering the Yangtze River Ship lifts in China South North Water Transfer Project Steamboats on the Yangtze River Yangtze River Crossing Yangtze Service MedalReferences edit Encyclopaedia Britannica Yangtze River Archived August 21 2008 at the Wayback Machine Zhang Zengxin Tao Hui Zhang Qiang Zhang Jinchi Forher Nicola Hormann Georg 2009 Moisture budget variations in the Yangtze River Basin China and possible associations with large scale circulation Stochastic Environmental Research and Risk Assessment 24 5 579 589 doi 10 1007 s00477 009 0338 7 S2CID 122626377 Main Rivers National Conditions China org cn Archived from the original on March 13 2012 Retrieved July 27 2010 https probeinternational org three gorges probe flood types yangtze river Archived July 23 2011 at the Wayback Machine Accessed February 1 2011 Three Gorges Says Yangtze River Flow Surpasses 1998 Bloomberg Businessweek July 20 2010 Archived from the original on July 23 2010 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and Aquatic Sciences 2812 Neil Cumberlidge N Ng P K L Yeo D C J Naruse T Meyer K S Esser L J 2011 Diversity endemism and conservation of the freshwater crabs of China Brachyura Potamidae and Gecarcinucidae Integrative Zoology 6 1 45 55 doi 10 1111 j 1749 4877 2010 00228 x PMID 21392361 Fang F Sun H Zhao Q Lin C Sun Y Gao W Xu J Zhou J Ge F Liu N 2013 Patterns of diversity areas of endemism and multiple glacial refuges for freshwater crabs of the genus Sinopotamon in China Decapoda Brachyura Potamidae PLOS ONE 8 1 e53143 Bibcode 2013PLoSO 853143F doi 10 1371 journal pone 0053143 PMC 3537761 PMID 23308152 Didziulis Viktoras NOBANIS Invasive Alien Species Fact Sheet Craspedacusta sowerbyi PDF Archived PDF from the original on May 17 2014 Retrieved September 28 2016 Further reading editCarles William Richard The Yangtse Chiang The Geographical Journal Vol 12 No 3 Sep 1898 pp 225 240 Published by Blackwell Publishing on behalf of The Royal Geographical Society with the Institute of British Geographers Danielson Eric N 2004 Nanjing and the Lower Yangzi From Past to Present The New Yangzi River Trilogy Vol II Singapore Times Editions Marshall Cavendish ISBN 981 232 598 0 Danielson Eric N 2005 The Three Gorges and The Upper Yangzi From Past to Present The New Yangzi River Trilogy Vol III Singapore Times Editions Marshall Cavendish ISBN 981 232 599 9 Grover David H 1992 American Merchant Ships on the Yangtze 1920 1941 Wesport Conn Praeger Publishers Van Slyke Lyman P 1988 Yangtze nature history and the river A Portable Stanford Book ISBN 0 201 08894 0 Winchester Simon 1996 The River at the Center of the World A Journey Up the Yangtze and Back in Chinese Time Holt Henry amp Company 1996 hardcover ISBN 0 8050 3888 4 trade paperback Owl Publishing 1997 ISBN 0 8050 5508 8 trade paperback St Martins 2004 432 pages ISBN 0 312 42337 3 Plant Cornell Glimpses of the Yangze Gorges illustrations by Ivon A Donnelly Kelly amp Walsh Limited Shanghai Hong Kong Singapore 1926 External links edit nbsp Wikimedia Commons has media related to Yangtze River nbsp Look up Yangtze in Wiktionary the free dictionary nbsp Wikivoyage has a travel guide for Along the Yangtze River nbsp Geographic data related to Yangtze at OpenStreetMap Video of walking along the Yangtze River in Yichang City Hubei Province Retrieved from https en wikipedia org w index php title Yangtze amp oldid 1193288789, wikipedia, wiki, book, books, library,

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