岩溶高原石漠化演变对乡村聚落发展的响应研究OA

Based on Landsat imagery and bivariate spatial autocorrelation analysis,this study explores the spatiotemporal evolution of rocky desertification,the spatial pattern of rural settlement expansion,and their spa-tial correlation in Changhu Town and Xijiekou Town.The results show that from 1985 to 2022,the rocky deserti-fication area decreased,but the proportion of extreme and severe rocky desertification increased,with a spatial distribution characterized by"heavier in the west and north,lighter in the east and south."Rural settlement expan-sion was slow overall,with significant regional disparities leading to uneven development.The relationship between settlement expansion and rocky desertification(area growth and transformation degree)shifted from neg-ative to positive correlation over time,with uncoordinated areas expanding and clustering near transportation routes.Settlement expansion near transportation lines may exacerbate rocky desertification.Therefore,compre-hensive measures are needed to balance settlement development and ecological protection for sustainable regional development.