![]() ![]() ![]() A quantitative assessment of drought risk (DR) in different grassland types was applied based on the theory of risk formation, and a structural equation model (SEM) was used to analyze the drivers of drought risk in different grassland types. Based on multi-source data, a random forest regression algorithm was used to construct a grassland biomass estimation model, which was then used to analyze the spatiotemporal variation characteristics of grassland biomass. Therefore, the quantitative analysis of drought risk in different grassland types becomes particularly important. Under climate warming, the droughts faced by various grassland types tend to expand in scope and intensity, and increase in frequency. Xilin Gol is a typical kind of grassland in arid and semi-arid regions. ![]()
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