Altai montane forest and forest steppe

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Altai montane forest and forest steppe
Vid na Pervoe ozero s vershiny.jpg
Forest and forest-steppe in Katun Nature Reserve
Ecoregion PA0502.png
Ecoregion territory (in purple)
Ecology
Realm Palearctic
Biome temperate coniferous forest
Geography
Area142,449 km2 (55,000 sq mi)
Countries Russia, Kazakhstan, Mongolia and China
Coordinates 48°15′N90°15′E / 48.25°N 90.25°E / 48.25; 90.25 Coordinates: 48°15′N90°15′E / 48.25°N 90.25°E / 48.25; 90.25
Climate type Cold semi-arid climate (Bsk)

The Altai montane forest and forest steppe ecoregion (WWF ID: PA0502) covers patches of the subalpine forest belt on the Altai Mountains, crossing the border region where Russia, Kazakhstan, Mongolia and China meet. The region has high biodiversity, as it is located in transition zones between different ecoregions, altitudes, and climate zones. It is in the Palearctic realm, with a Cold semi-arid climate. It covers 35,199,998 km2 (13,590,795 sq mi). [1] [2]

Contents

Location and description

The ecoregion stretches 1,500 km, from the Belukh Range of the Altai mountains on the Russia-Kazakhstan border in the northwest, to the Gobi-Altai in Mongolia to the southeast. [3] The ecoregion slices through the Altai at the sub-alpine elevations, leaving out the alpine peaks above, and the lakes and valleys below. To the south of the Altai are the cold, arid regions of central Asia, and to the north are the forests and wetlands of Siberia.

Climate

Because of its altitude distance from the ocean, the ecoregion has a cold semi-arid climate (Köppen climate classification Bsk). This indicates a local climate characterized by cool summers, and cold, dry winters. These climate regions tend to be found at higher elevations in the middle of continents, with wide differences between day and night temperatures. [4]

Climate at 48.25 N, 90.25 E
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
0.1
 
 
−6
−31
 
 
0.1
 
 
−2
−29
 
 
0.4
 
 
12
−14
 
 
0.7
 
 
35
10
 
 
1.1
 
 
49
24
 
 
1.4
 
 
59
32
 
 
2
 
 
62
36
 
 
1.4
 
 
60
33
 
 
0.7
 
 
50
24
 
 
0.4
 
 
35
10
 
 
0.4
 
 
15
−9
 
 
0.4
 
 
0
−24
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: GlobalSpecies.org [5]

Flora

Bands of conifer forests tend to be found on the cooler, wetter northern slopes of the mountains, with desert-steppe vegetation more predominant on the southern slopes. [3] The forests in the southeast of the region include larch and larch-cedar stands. Mid-elevation grasses are dominated by tundra fescue (Festuca lenensis) and prairie junegrass (Koeleria macrantha). Desert-steppe vegetation in the south often features European feather grass ( Stipa pennata ), wild onion ( Allium polyrhizum ), Anabasis breviloa, and fringed sagebrush ( Artemisia frigida ). This is only a representative list, however, as the biodiversity in the area is very high. The World Wildlife Federation notes that the endemism of the area (12%) is higher than that of the Pyrenees or Alps.

Fauna

As a meeting zone of forest species from the north, and southern species from the south, the Altai mid-elevations exhibits high numbers of species. The most numerous of the southern small mammals are the Gray marmot (Marmota baibacina), the Tarbagan marmot (M. sibirica), and Lagomorpha (rabbits, hares, and pikas). [3] The area is home to several globally threatened species, such as the Snow leopard (Uncia uncia).

Protections

Officially protected areas in the ecoregion include:

See also

Related Research Articles

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<span class="mw-page-title-main">Katun Nature Reserve</span>

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<span class="mw-page-title-main">Saylyugemsky National Park</span>

Saylyugemsky National Park sits at the mountainous "X" where the borders of Russia, Kazakhstan, Mongolia and China meet in the Altai Mountains of central Asia. Because of its remoteness and position at the meeting points of mountains, steppes, desert and forest, it is a globally important natural reserve for biodiversity. The park was formally established in 2010–2012, with a particular purpose of protecting the vulnerable Altai argali mountain sheep and the endangered Snow leopard. The component Saylyugem Mountains are a ridge of the Altai, and stretch to the northeast to the Sayan Mountains. The climate is cold and semi-arid. Administratively, the park is located in the Kosh-Agachsky District of the Altai Republic. While ecotourism has a stated role, visits to the territory currently require special passes from park administration, and activities are limited to roads and trails.

<span class="mw-page-title-main">Trans-Baikal conifer forests</span> Ecoregion in southern Siberia and Mongolia

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<span class="mw-page-title-main">Sayano-Shushenski Nature Reserve</span>

Sayano-Shushenski Nature Reserve is a Russian 'zapovednik' reserve in a remote area of the West Sayan Mountains of south Siberia. It is on the southern bank of the Yenisei River along the Sayano-Shushenskoye reservoir. The reserve thus protects a large section of the wooded, mountainous territory above the reservoir created by the Sayano-Shushenskaya Dam, the largest power plant in Russia. Both the reserve and the dam were established 1976, and a major purpose of the reserve besides conservation is the study of the ecological effects of a large reservoir on the local ecology. The reserve covers an area of 390,368 ha (1,507.22 sq mi). It is situated in the Shushensky District of Krasnoyarsk Krai.

<span class="mw-page-title-main">Khakassia Nature Reserve</span>

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<span class="mw-page-title-main">Kuznetsk Alatau Nature Reserve</span>

Kuznetsk Alatau Nature Reserve is a Russian 'zapovednik' on the Kuznetsk Alatau, a mountain ridge in the Altai-Sayan mountain region in southwestern Siberia. The Kuznetsk Alatau consists of several ranges of medium height, between which there are river valleys. The reserve is in the watershed of the Tom River and the Chuly River. It is spread over three districts of Kemerovo Oblast: Tisulsky District, Mezhdurechensky District, and Novokuznetsky District. The reserve was established in 1989 and covers an area of 412,900 ha (1,594 sq mi).

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<span class="mw-page-title-main">Katon-Karagay National Park</span>

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<span class="mw-page-title-main">Da Hinggan–Dzhagdy Mountains conifer forests</span> Ecoregion in the Khingan Mountains

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<span class="mw-page-title-main">Sayan montane conifer forests</span>

The Sayan montane conifer forests ecoregion covers the mid-elevation levels of the Sayan Mountains, the high mountain range between the taiga of Siberia, Russia to the north, and the steppes of Mongolia to the south. The slopes of the mountains at the mid-altitudes are covered by Temperate coniferous forest. The ecoregion is in the Palearctic realm, with a cold semi-arid climate. It covers 35,741,835 km2 (13,800,000 sq mi).

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<span class="mw-page-title-main">Selenge–Orkhon forest steppe</span>

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<span class="mw-page-title-main">Altai alpine meadow and tundra</span> Ecoregion in the Altai Mountains

The Altai alpine meadow and tundra ecoregion is a terrestrial ecoregion covering the higher elevation of the Altai Mountains at the center of the "X" formed by the borders separating Russia, Kazakhstan, China, and Mongolia. The mountain peaks are the farthest north in Central Asia, separating the plains of Siberia to the north from the hot, dry deserts to the south. Altitudes above 2,400 meters display characteristics of tundra, with patches of alpine meadows and some trees immediately below the treeline. The ecoregion is in the montane grasslands and shrublands biome, and the Palearctic realm, with a humid continental climate. It covers an area of 90,132 square kilometres (34,800 sq mi).

<span class="mw-page-title-main">Khangai Nuruu National Park</span>

Khangai Nuruu National Park stretches in a west-to-east band across the middle of the Khangai Mountains, with the eastern half following the upper Orkhon River valley. There are a variety of habitat types in the park: steppe, riparian forests, larch taiga, and alpine meadows.

<span class="mw-page-title-main">Onon-Balj National Park</span> National Park of Mongolia

Onon-Balj National Park covers two sectors of the Onon River valley as it flows north from Mongolia into Russia. The region is in the transition zone between the Siberian conifer forests of the north and the Daurian steppe and forest steppe of Mongolia. The area is one of relatively high biodiversity, and is also historically and culturally important for its association with Genghis Khan. The park is located in the far northeast of Khentii Province, 280 km northeast of Ulaanbataar.

References

  1. "Altai montane forest and forest steppe". Ecoregions of the World. GlobalSpecies.org. Archived from the original on 7 January 2018. Retrieved 21 December 2017.
  2. Plants of China. Cambridge University Press. 23 April 2015. ISBN   9781316195154 . Retrieved December 21, 2017.
  3. 1 2 3 "Altai Mountain Forest steppe". World Wildlife Federation. Retrieved January 5, 2017.
  4. "Koppen Climate Classification". Hans Chen, Pennsylvania State University. Retrieved January 5, 2018.
  5. "Climate, 48.25/90.25". GlobalSpecies.org. Retrieved January 5, 2018.