2000—2020年安宁河流域生态系统服务权衡协同关系及驱动因素分析
方信卓 , 叶樊妮 , 龚碧凯 , 曹颖
四川师范大学学报(自然科学版) ›› 2026, Vol. 49 ›› Issue (4) : 545 -555.
2000—2020年安宁河流域生态系统服务权衡协同关系及驱动因素分析
Analysis for Synergistic Relationships and Drivers of Ecosystem Service Trade-offs in the Anning River Basin from 2000 to 2020
安宁河流域是川西南地区重要的生态屏障,明晰该区域生态系统服务间的复杂关系及成因并采取差异化的管理措施是实施可持续发展战略的关键.采用InVEST模型,评估安宁河流域2000—2020年4种主要生态系统服务(碳储量、产水量、生境质量与土壤保持)的时空变化,并运用Pearson相关性分析与双变量空间自相关来探讨生态系统服务时空上权衡协同关系的分异特征,同时结合地理探测器分析其变化的主导因素.结果表明:1) 研究期内,安宁河流域碳储量、生境质量轻微下降,碳储量下降0.06×107 t/hm2、生境质量下降0.02.产水量、土壤保持显著增加,产水量增加10.26×107 m3/hm2,土壤保持增加17.99×107 t/hm2;2) 安宁河流域不同的生态系统服务间均存在显著的权衡协同关系,WY-SDR、WY-HQ和WY-CS为显著的权衡关系且在2000—2020年均表现为“W”的变化趋势,而CS-HQ、CS-SDR和HQ-SDR均呈现显著的协同关系,聚集程度较高,流域整体环境较为稳定;3) 通过对相关影响因素分析发现,该区域生态系统服务变化为多个驱动因子共同作用的结果,其中NDVI、坡度和降水量的协同影响最为显著.本研究可为安宁河流域土地利用及生态管理提供更具针对性的策略支持.
As an important ecological barrier in southwest Sichuan, clarifying the complex relationships and causes between ecosystem services in the Anning River basin and implementing differentiated management measures are key to implementing a sustainable development strategy. Using the InVEST model, this study assessed four primary ecosystem services (carbon storage, water production, habitat quality, and soil conservation) in the Anning River Basin from 2000 to 2020. Pearson correlation analysis and bivariate spatial autocorrelation were employed to explore the spatial and temporal trade-off characteristics of ecosystem services, while geographic detector analysis was used to identify the dominant factors driving these changes. The results showed that: 1) During the study period, carbon storage and habitat quality in the Anning River Basin slightly decreased, with carbon storage decreasing by 0.06 × 10⁷ t/hm² and habitat quality decreasing by 0.02. Water production and soil conservation significantly increased, with water production increasing by 10.26 × 10⁷ m³/hm² and soil conservation increasing by 17.99 × 10⁷ t/hm². 2) Significant trade-off synergistic relationships exist among different ecosystem services in the Anning River Basin. WY-SDR, WY-HQ, and WY-CS exhibit significant trade-off relationships and show a “W” trend from 2000 to 2020, while CS-HQ, CS-SDR, and HQ-SDR exhibit significant synergistic relationships with high aggregation levels, indicating overall environmental stability in the basin. 3) Analysis of relevant influencing factors revealed that changes in ecosystem services in this region are the result of multiple driving factors acting together, with the synergistic effects of NDVI, slope, and precipitation being the most significant. This study can provide more targeted strategic support for land use and ecological management in the Anning River Basin.
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四川省科技厅软科学项目(2022JDR0099)
中央高校基本科研业务费专项资金(2023SYB08)
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