Analysis of trade-off and synergistic relationships and attribution of ecosystem services in Western Sichuan Plateau
[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/hm2,and carbon storage was 118.56 t/hm2.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.
万方数据
维普
