Ordos Plateau steppe

The Ordos Plateau steppe is a montane grasslands and shrublands ecoregion located in the Palearctic biogeographic realm, covering Europe, northern Asia, North Africa, and the northern Middle East, spanning approximately 215,604 km². Classified under the WWF ecoregion code PA1013, this region represents a distinct ecological community shaped by its unique combination of climate, geography, and evolutionary history.

Climate and Vegetation

This ecoregion experiences cool temperatures with high UV radiation and variable precipitation at altitude. The dominant vegetation consists of alpine grasses, cushion plants, and low shrubs above the treeline. These conditions create the foundation for the ecological communities found within the Ordos Plateau steppe.

Ecological Significance

These high-altitude ecosystems are islands of unique biodiversity, often harbouring species found nowhere else due to geographic isolation. They are especially sensitive to climate warming. The Ordos Plateau steppe contributes to the broader biodiversity patterns of the Palearctic realm.

Geographic Distribution

The Ordos Plateau steppe extends entirely within China. This geographic range places it within the Palearctic realm, one of the eight major biogeographic divisions of the world.

Notable Species

The Ordos Plateau steppe supports a range of wildlife, including Alfalfa (Medicago sativa), Alfalfa Weevil (Hypera postica), Alsike Clover (Trifolium hybridum), American Black Nightshade (Solanum americanum), American carpet grass (Axonopus compressus), Anil de pasto (Indigofera suffruticosa), Annual Wall-rocket (Diplotaxis muralis), Arabic Gumtree (Vachellia nilotica), and 42 more species. Among these, 1 species is classified as threatened on the IUCN Red List, underscoring the conservation importance of this ecoregion.

Conservation

Like many montane grasslands and shrublands ecosystems, the Ordos Plateau steppe faces threats from climate change (upslope migration of treelines), overgrazing, and tourism impacts. Conservation efforts in this ecoregion focus on habitat preservation, sustainable land management, and protecting corridors that connect fragmented habitat patches.