Relative Importance of Climatic and Anthropogenic Drivers on the Dynamics of Aboveground Biomass across Agro-Ecological Zones on the Mongolian Plateau

摘要: The dynamics of aboveground biomass (AGB) are driven by both climate variation and anthropogenic modification, however, few studies have evaluated the relative importance these two drivers, especially in a heterogeneous landscape. Taking Mongolian Plateau as case study employing vegetation optical depth retrieval proxy AGB, this aimed to determine climatic drivers on AGB Mongolia (ML) Inner Autonomous Region (IM), China. Spatial panel data model specific each agro-ecological zone was employed fulfill task. results revealed that: (1) Since socio-institutional transition early 1990s, declined most parts grazing Mongolia. reduction precipitation, rise temperature intensification livestock were major behind it. Ranked their importance, order with relatively humid was: Precipitation ≈ > grazing; arid (2) implementation series ecological restoration programs 2000s, increased IM, increase precipitation dominant driver it; (3) grazing-farming IM. decline grain production temperature; (4) farming Grain precipitation.