Impact of land use and land cover change on the landscape pattern and service value of the village ecosystem in the karst desertification control

Human activities have had a significant impact on ecosystems. Studying landscape patterns and ecosystem services (ES) at the village scale based land use cover (LULC) is essential in addressing current issues. Based GF images, paper selects ecosystems of karst desertification control (KDC) as research object. It uses pattern index, topographic position index (TPI), value equivalent method to conduct spatial temporal analysis service (ESV) cycle (2015–2020). The results show that: 1) forest land, orchard construction increase, dryland grassland decrease. shows an aggregated state, with spreading connectivity increasing while fragrant diversity decreasing. 2) total increased by CNY 63.45 × 10 4 , regulating cultural rise supply support decline. 3) With TPI, inversely U-shaped, remaining increases. This study provides case about areas for village-scale research.