The Influence of Landscape Pattern Evolution on the Value of Ecosystem Services

Ecosystem services (ES) can link natural ecosystems with socioeconomic systems. The Yi River basin is one of the most important sub-basins Yellow basin, and landscape pattern this has changed dramatically in recent years. However, assessment patterns on ecosystem value (ESV) such been little studied. Therefore, temporal-spatial evolution ESV was evaluated through indices analysis method for evaluating equivalent factor unit area, based land cover data from 1987 to 2020. effects changes were then quantified. results show that (1) Forest dominant type followed by grassland, total area both accounting 80% area. From 2020, forest construction increased, while farmland grassland decreased. In addition, stability within low, fragmentation patches serious. shape index (LSI) 2015 2020 52.57 42.38, respectively, Shannon's diversity (SHDI) increased 1.04 1.17 same period, indicating degree heterogeneity considerably reduced well connected. (2) (supply, regulation, support, cultural services) showed an “N” variation. Specifically, noticeably 2005, decreased after bottomed out 2015, began recover regulating contributed at 77%. (3) correlation displayed negatively correlated LSI positively SHDI. Moreover, water supply had a significant inverse relationship largest patch (LPI), LSI, density (PD) strong positive biodiversity. Human activities (e.g., urbanization) found be main drivers change decline thus level biodiversity overall service provision improved increasing reducing complexity shape. quantification its impact help provide scientific information improving ecological qualify supporting sustainable development basin.