Grazing Effects on Mongolian Steppe Vegetation—A Systematic Review of Local Literature
نویسندگان
چکیده
The Mongolian steppes with a long history of nomadic pastoralism cover large area the Palaearctic steppe biome and are still relatively intact. As livestock number has increased over last two decades, grazing been considered as main reason pasture degradation. However, impact on vegetation dynamics, its interaction climate, is not clear. We reviewed 44 publications in language, covering 109 sites five types, i.e., desert, dry, meadow, mountain, high mountain steppe, mean annual precipitation temperature range from 120 to 370 mm −6 +5°C, respectively. calculated relative changes cover, species richness, aboveground biomass heavily grazed respect lightly/non-grazed conditions. Multiple linear regression models were used test environmental factors, precipitation, coefficient variation for elevation. Grazing had stronger effect desert steppes, whereas was less pronounced meadow mesic climate productivity. Vegetation richness reduced by heavy steppes. In but nearly no biomass. affected, grazing. Additionally, effects tended be more at higher amounts changed negative positive elevation increased. conclusion, overall dry or even found Especially, showed detrimental all variables indicating existence combined pressure arid habitats, making them potentially sensitive overgrazing change. Grassland conservation management should consider characteristics different types give importance local
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ژورنال
عنوان ژورنال: Frontiers in Ecology and Evolution
سال: 2021
ISSN: ['2296-701X']
DOI: https://doi.org/10.3389/fevo.2021.703220