【摘要】 [目的]分析川西高原3种关键生态系统服务的权衡协同关系，揭示自然因素的影响机制，进而为川西高原的可持续发展提供科学支撑。[方法]基于InVEST模型评估并分析了川西高原2000年、2005年、2010年、2015年、2020年水源涵养、土壤保持和碳存储3种生态系统服务功能及其时空分布特征，利用双变量Moran′s I指数分析了川西高原生态系统服务功能间的权衡协同关系，使用冗余分析揭示了各生态系统服务功能的影响因素。[结果]川西高原多年平均水源涵养量为249.24 mm,土壤保持量为226.18 t/hm~2,碳存储量为118.56 t/hm~2。土壤保持和水源涵养功能之间以及水源涵养和碳存储功能之间的协同关系呈增强趋势，土壤保持和碳存储功能之间的协同关系保持稳定。[结论]2000—2020年，协同关系是川西高原水源涵养、土壤保持和碳存储功能之间的主导关系，水源涵养主要受降水和气温影响，土壤保持主要受林地、灌木和降水影响，碳存储主要受林地和灌木影响。更多还原

【Abstract】 [Objective] The aims of this study are to analyze the trade-offs and synergies among three key ecosystem services on the Western Sichuan Plateau, to reveal the influence mechanisms of natural factors, and to provide scientific support for sustainable development on the Western Sichuan Plateau. [Methods] Based on the InVEST model, the spatial-temporal distribution characteristics of three ecosystem service functions: water retention, soil retention, and carbon storage, in the Western Sichuan Plateau in 2000, 2005, 2010, 2015 and 2020 were assessed and analyzed. The trade-off and synergistic relationships among these ecosystem service functions were analyzed using the bivariate Moran′s I index. The influencing factors of each ecosystem service function were revealed through redundancy analysis. [Results] The average annual water retention in the Western Sichuan Plateau was 249.24 mm, soil retention was 226.18 t/hm~2, and carbon storage was 118.56 t/hm~2. The synergistic relationship between soil retention and water retention functions and between water retention and carbon storage functions showed an increasing trend. The synergistic relationship between soil retention and carbon storage functions remained stable. [Conclusion] From 2000 to 2020, the synergy relationship was the dominant one among water retention, soil retention and carbon storage functions in the Western Sichuan Plateau. Water retention was mainly influenced by precipitation and temperature. Soil retention was primarily affected by forestland, shrubs and precipitation, while carbon storage was primarily influenced by forestland and shrubs.更多还原