The Da Hinggan-Dzhagdy Mountains conifer forestsecoregion (WWF ID: PA0505) covers the Greater Khingan Mountains of Northeast China, and across the border north into the Russian Far East where it follows the mountain ridge for another 500 km to the east. The mountain forests exhibit a floral community called "Daurian flora", a combination of the Siberian taiga to the north and the Manchurian floral types to the south. The eastern slopes are steep and drained by many rivers, the western slopes are gentler, and there are grasslands on some slopes. The ecoregion is in the Palearctic realm, with a subarctic climate. It covers 35,199,998 km2 (13,590,795 sq mi).[1]
Because of its altitude and distance from the ocean, the ecoregion has a Subarctic climate, dry winter (Köppen climate classificationSubarctic climate (Dwc)). This climate is characterized by mild summers (only 1-3 months above 10 °C (50.0 °F)) and cold winters having monthly precipitation less than one-tenth of the wettest summer month.[4][5] These climate regions tend to be found at higher elevations in the middle of continents, with wide differences between day and night temperatures.
Because the ecoregion forms a transition zone between northern (Siberian) taiga and southern (Manchurian) flora types, it features examples of both - approximately two-thirds of the 1,200 local species of vascular plants are Siberian, the other third Manchurian, Daurian and Mongolian. This combination of floral communities is sometimes referred to as "Daurian flora". The dominant trees are Dahurian larch (Larix gmelinii), with pine and spruce stands. Mongolian oak (Quercus mongolica), hazel, alder, birch, poplars and elms also can be found at lower elevation. [2] The area is one of the few remaining large tracts of forest in China, but was also the scene of the largest forest fire in modern Chinese history (over 1 million hectares in 1987).[7]
Protectionsedit
The federally protected areas in the region are:
Nora Nature Reserve ("Norsky"). An IUCN class Ia "strict ecological reserve" (a Zapovednik) located in the northwest section of the ecoregion, north of the Russia-China border. Nora is representative of the northeastern part of the Amur-Zeya lowland plain between the Nora River and the Selemdzha River. The reserve is half forested, and half bogs. (Area: 211,168 km2).
Zeya Nature Reserve ("Zeysky"). An IUCN class Ia "strict ecological reserve" (a Zapovednik) located in the north-central section of the ecoregion, in the mountainous headwaters of the Zeya River. The area is heavily forested, mostly with larch and Mongolian oak. (Area: 99,390 km2).
^"Da Hinggan-Dzhagdy Mountains conifer forests Ecoregion". World Wildlife Federation. Retrieved 21 December 2017.
^ ab"Altai Mountain Forest steppe". World Wildlife Federation. Retrieved January 5, 2017.
^"Da Xingan-Dzhagdy Mountains coniferous forests". Amur Information Center. Retrieved January 10, 2018.
^Kottek, M., J. Grieser, C. Beck, B. Rudolf, and F. Rubel, 2006. "World Map of Koppen-Geiger Climate Classification Updated" (PDF). Gebrüder Borntraeger 2006. Retrieved September 14, 2019.{{cite web}}: CS1 maint: multiple names: authors list (link)
^"Dataset - Koppen climate classifications". World Bank. Retrieved September 14, 2019.
^. GlobalSpecies.org. Archived from the original on January 11, 2018. Retrieved January 5, 2018.
^Canada's Vegetation: A World Perspective. McGill-Queen's Press (from Google Boods). 10 January 1995. ISBN9780773565098. Retrieved January 10, 2018.
External linksedit
Map of ecoregion Da Hinggan-Dzhagdy Mountains conifer forests. GlobalSpecies.org 2018-01-11 at the Wayback Machine
October 28, 2023
hinggan, dzhagdy, mountains, conifer, forests, hinggan, dzhagdy, mountains, conifer, forests, ecoregion, pa0505, covers, greater, khingan, mountains, northeast, china, across, border, north, into, russian, east, where, follows, mountain, ridge, another, east, . The Da Hinggan Dzhagdy Mountains conifer forests ecoregion WWF ID PA0505 covers the Greater Khingan Mountains of Northeast China and across the border north into the Russian Far East where it follows the mountain ridge for another 500 km to the east The mountain forests exhibit a floral community called Daurian flora a combination of the Siberian taiga to the north and the Manchurian floral types to the south The eastern slopes are steep and drained by many rivers the western slopes are gentler and there are grasslands on some slopes The ecoregion is in the Palearctic realm with a subarctic climate It covers 35 199 998 km2 13 590 795 sq mi 1 Da Hinggan Dzhagdy Mountains conifer forestsZeya Nature Reserve RussiaEcoregion territory in purple EcologyRealmPalearcticBiometemperate coniferous forestsGeographyArea248 380 km2 95 900 sq mi CountriesRussiaChinaCoordinates51 45 N 123 45 E 51 75 N 123 75 E 51 75 123 75 Contents 1 Location and description 2 Climate 3 Flora and fauna 4 Protections 5 See also 6 References 7 External linksLocation and description editThe ecoregion covers the Greater Khingan mountains in Northeast China and crosses the Amur River north into the Dzhagdy in Russia 2 In China this is in the northern parts of Inner Mongolia Autonomous Region and Heilongjiang Province In Russia most of the region is in Amur Oblast 3 Climate editBecause of its altitude and distance from the ocean the ecoregion has a Subarctic climate dry winter Koppen climate classification Subarctic climate Dwc This climate is characterized by mild summers only 1 3 months above 10 C 50 0 F and cold winters having monthly precipitation less than one tenth of the wettest summer month 4 5 These climate regions tend to be found at higher elevations in the middle of continents with wide differences between day and night temperatures Climate at 51 75 N 123 75 EClimate chart explanation J F M A M J J A S O N D 0 1 7 36 0 1 5 30 0 3 21 13 0 9 42 15 1 4 58 29 3 1 70 40 4 8 74 48 4 3 69 44 2 57 32 0 6 39 12 0 3 12 15 0 2 5 31 Average max and min temperatures in F Precipitation totals in inchesSource GlobalSpecies org 6 Metric conversionJ F M A M J J A S O N D 2 5 22 38 2 5 15 34 7 6 6 25 23 6 10 36 15 2 79 21 4 122 23 9 109 21 7 51 14 0 15 4 11 7 6 11 26 5 1 21 35 Average max and min temperatures in C Precipitation totals in mmFlora and fauna editBecause the ecoregion forms a transition zone between northern Siberian taiga and southern Manchurian flora types it features examples of both approximately two thirds of the 1 200 local species of vascular plants are Siberian the other third Manchurian Daurian and Mongolian This combination of floral communities is sometimes referred to as Daurian flora The dominant trees are Dahurian larch Larix gmelinii with pine and spruce stands Mongolian oak Quercus mongolica hazel alder birch poplars and elms also can be found at lower elevation 2 The area is one of the few remaining large tracts of forest in China but was also the scene of the largest forest fire in modern Chinese history over 1 million hectares in 1987 7 Protections editThe federally protected areas in the region are Nora Nature Reserve Norsky An IUCN class Ia strict ecological reserve a Zapovednik located in the northwest section of the ecoregion north of the Russia China border Nora is representative of the northeastern part of the Amur Zeya lowland plain between the Nora River and the Selemdzha River The reserve is half forested and half bogs Area 211 168 km2 Zeya Nature Reserve Zeysky An IUCN class Ia strict ecological reserve a Zapovednik located in the north central section of the ecoregion in the mountainous headwaters of the Zeya River The area is heavily forested mostly with larch and Mongolian oak Area 99 390 km2 See also editList of ecoregions in RussiaReferences edit Da Hinggan Dzhagdy Mountains conifer forests Ecoregion World Wildlife Federation Retrieved 21 December 2017 a b Altai Mountain Forest steppe World Wildlife Federation Retrieved January 5 2017 Da Xingan Dzhagdy Mountains coniferous forests Amur Information Center Retrieved January 10 2018 Kottek M J Grieser C Beck B Rudolf and F Rubel 2006 World Map of Koppen Geiger Climate Classification Updated PDF Gebruder Borntraeger 2006 Retrieved September 14 2019 a href Template Cite web html title Template Cite web cite web a CS1 maint multiple names authors list link Dataset Koppen climate classifications World Bank Retrieved September 14 2019 Climate 51 75 123 75 GlobalSpecies org Archived from the original on January 11 2018 Retrieved January 5 2018 Canada s Vegetation A World Perspective McGill Queen s Press from Google Boods 10 January 1995 ISBN 9780773565098 Retrieved January 10 2018 External links editMap of ecoregion Da Hinggan Dzhagdy Mountains conifer forests GlobalSpecies org Archived 2018 01 11 at the Wayback Machine Retrieved from https en wikipedia org w index php title Da Hinggan Dzhagdy Mountains conifer forests amp oldid 1172513602, wikipedia, wiki, 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