Summary
Maintaining grassland stock and improving its ecosystem services (ES) are critical yet challenging for ecological and economic sustainability. However, the diversity and spatial heterogeneity of global grasslands pose significant challenges to studying the spatio-temporal coupling characteristics of grassland area and ES changes, especially in the karst desertification control (KDC) regions. This study quantified the grassland area, grassland ES, and the elasticity of grassland ES in response to changes in grassland area within the KDC region of South China. The Moran index was applied to analyze spatio-temporal evolution characteristics, and a quantile regression model was used to explored the segmentation effects of influencing factors. Results showed that: (1) During 2000-2020, despite
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