The Qilian Mountains Conifer Forests

ecoregion An ecoregion (ecological region) is an ecological and geographic area that exists on multiple different levels, defined by type, quality, and quantity of environmental resources. Ecoregions cover relatively large areas of land or water, and c ...

(WWF ID: PA0517) is an ecoregion that consists of a series of isolated conifer forests on the northern slopes of the Qilian Mountain Range, on the northeast edge of the

Tibetan Plateau The Tibetan Plateau, also known as the Qinghai–Tibet Plateau or Qingzang Plateau, is a vast elevated plateau located at the intersection of Central Asia, Central, South Asia, South, and East Asia. Geographically, it is located to the north of H ...

Qinghai Qinghai is an inland Provinces of China, province in Northwestern China. It is the largest provinces of China, province of China (excluding autonomous regions) by area and has the third smallest population. Its capital and largest city is Xin ...

and

Gansu Gansu is a provinces of China, province in Northwestern China. Its capital and largest city is Lanzhou, in the southeastern part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibetan Plateau, Ti ...

provinces of north-central

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

Location and description

The scattered patches of this ecoregion are thin ridges of forest between the

Gobi Desert The Gobi Desert (, , ; ) is a large, cold desert and grassland region in North China and southern Mongolia. It is the sixth-largest desert in the world. The name of the desert comes from the Mongolian word ''gobi'', used to refer to all of th ...

to the north, and the dry and high Tibetan Plateau to the south. The surrounding areas are alpine meadows and scrub. The fragmented forests are found in isolated segments in the eastern Qilian Mountains, Daban Shan, the Amne Machin range, and Dié Shan. These segments are located in

and

provinces.

Climate

Because of its high elevation and mid-continental location, the ecoregion's climate is '' Subarctic climate, dry winter'' (

Köppen climate classification The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (te ...

Subarctic climate The subarctic climate (also called subpolar climate, or boreal climate) is a continental climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of ...

(Dwc)). This climate is characterized by mild summers (only 1–3 months above ) and cold winters having monthly precipitation less than one-tenth of the wettest summer month. The average temperatures range from in January, and in July.

Flora and fauna

The dominant trees in the ecoregion are the Qilian spruce ('' Picea crassifolia''), Przewalski's juniper ('' Juniperus przewalskii''), '' Larix griffithii,

Pinus roxburghii ''Pinus roxburghii'', commonly known as chir pine or longleaf Indian pine, is a species of pine tree Native plant, native to the Himalayas. It was named after William Roxburgh. Description ''Pinus roxburghii'' is a large tree reaching with a ...

, Pinus hwangshanensis, Pinus yunnanensis, Juniperus tibetica,

Shorea robusta ''Shorea robusta'', the sal tree, sāla, shala, sakhua, or sarai, is a species of tree in the family Dipterocarpaceae. The tree is native to India, Bangladesh, Nepal, Tibet and across the Himalayan regions. Evolution Fossil evidence from lig ...

, Olea europaea subsp. cuspidata, Taxus sumatrana, Tsuga dumosa, Betula utilis, Alnus nepalensis, Betula alnoides, Betula utilis, Picea brachytyla, Juglans regia, Larix gmelinii, Larix sibirica, Larix × czekanowskii, Betula dahurica,

Betula pendula ''Betula pendula'', commonly known as silver birch, warty birch, European white birch, or East Asian white birch, is a species of tree in the family (biology), family Betulaceae, native plant, native to Europe and parts of Asia, though in so ...

, Pinus koraiensis,

Pinus sibirica ''Pinus sibirica'', or Siberian pine, in the family Pinaceae is a species of pine tree that occurs in Siberia from 58°E in the Ural Mountains east to 126°E in the Stanovoy Range in southern Sakha Republic, and from Igarka at 68°N in the l ...

Pinus sylvestris ''Pinus sylvestris'', the Scots pine (UK), Scotch pine (US), Baltic pine, or European red pine is a species of tree in the pine family Pinaceae that is native plant, native to Eurasia. It can readily be identified by its combination of fairly s ...

, Picea obovata,

Abies sibirica ''Abies sibirica'', the Siberian fir, is a coniferous evergreen tree native to the taiga east of the Volga River and south of 67°40' North latitude in Siberia through Turkestan, northeast Xinjiang, Mongolia and Heilongjiang. Distribution The ...

Quercus acutissima ''Quercus acutissima'', the sawtooth oak, is an Asian species of oak native to China, Tibet, Korea, Japan, Taiwan, Siberia, Mongolia, Bangladesh, Philippines, Indonesia, Malaysia, India, Pakistan, Sri Lanka, Brunei, Indochina (Vietnam, Thailand, ...

, Quercus mongolica,

Ginkgo biloba ''Ginkgo biloba'', commonly known as ginkgo or gingko ( ), also known as the maidenhair tree, is a species of gymnosperm tree native to East Asia. It is the last living species in the order Ginkgoales, which first appeared over 290 million year ...

Prunus serrulata ''Prunus serrulata'' or Japanese cherry is a species of cherry tree that grows wild in Japan, China, Korea, Vietnam, Taiwan, Laos, Myanmar, Thailand, Cambodia, India, Bangladesh, Bhutan, Nepal, Sri Lanka, Pakistan, Philippines, Malaysia, Indones ...

Prunus padus ''Prunus padus'', known as bird cherry, hackberry (unrelated to the genus ''Celtis''), hagberry, or Mayday tree, is a flowering plant in the Rosaceae, rose family. It is a species of cherry, a deciduous small tree or large shrub up to tall. It ...

, Tilia amurensis,

Salix babylonica ''Salix babylonica'' (Babylon willow or weeping willow; ) is a species of willow native to dry areas of northern China, Korea, Mongolia, Japan, and Siberia but cultivated for millennia elsewhere in Asia, being traded along the Silk Road to southw ...

Acer palmatum ''Acer palmatum'', commonly known as Japanese maple, palmate maple, or smooth Japanese maple (Korean: ''danpungnamu'' []; Japanese: ''irohamomiji'' [] or ''momiji'' []), is a species of woody plant native to Korea, Japan, China, eastern Mongol ...

, Populus tremula, Ulmus davidiana, Ulmus pumila, Pinus pumila, Haloxylon ammodendron, Elaeagnus angustifolia, Tamarix ramosissima'', '' Cathaya argyrophylla'', '' Taiwania cryptomerioides'', '' Cyathea spinulosa'', '' Sassafras tzumu'', '' Davidia involucrata'', ''

Metasequoia glyptostroboides ''Metasequoia glyptostroboides'', the dawn redwood, is a fast-growing, endangered deciduous pinophyta, conifer. It is the sole living species of the genus ''Metasequoia'', one of three genera in the subfamily Sequoioideae of the family (botany), ...

'', '' Glyptostrobus pensilis'', '' Castanea mollissima'', '' Quercus myrsinifolia'', '' Quercus acuta'', '' Machilus thunbergii'', '' Tetracentron'', ''

Cercidiphyllum japonicum ''Cercidiphyllum japonicum'', known as the Katsura (from its Japanese name カツラ, 桂), is a species of flowering tree in the family Cercidiphyllaceae native to China and Japan. It is sometimes called ''caramel tree'' for the light caramel sm ...

'', '' Emmenopterys henryi'', '' Eucommia ulmoides'' and '' Prunus sibirica''. There are stands of short-stature bamboo in the understory. The relative isolation of the forests suggests that they may serve as habitat for a number of rare species of mammals, but the area is little studied and the presence of vulnerable species is unclear.

References

{{reflist Ecoregions of China Forests of China Temperate coniferous forests Montane forests