ArticleFrontiers in plant science2026
Regime shifts and climate responses of alpine grasslands in Gannan Prefecture, China.
Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Ecological regime shifts and resilience are critical for maintaining the stability and sustainability of grassland ecosystems under climate change. However, existing studies on alpine grasslands primarily rely on single indicators and rarely integrate ecosystem structure and function to comprehensively characterize regime dynamics. Taking the alpine grasslands of Gannan Prefecture as a case study, this study quantitatively analyzed long-term grassland dynamics from three dimensions: grassland area, vegetation structure (fractional vegetation cover, FVC), and ecosystem function (net primary productivity, NPP). The Sequential t-test Analysis of Regime Shifts (STARS) method was employed to identify regime shifts, while the "ball-and-cup" model was used to quantify ecological resilience, and the responses of regime dynamics to climate factors were further explored. The results showed that: (1) grassland area decreased by approximately 0.5% during 1995-2024, primarily converting to forest, mainly distributed in Zhuoni, Diebu, and Zhouqu counties, with a total conversion area of approximately 88,600 hm
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