北京测绘2026，Vol.40Issue(9)：1267-1274,8.DOI:10.19580/j.cnki.1007-3000.2025110003
基于GIS的泾阳县景观生态风险评价及驱动因素分析
Landscape ecological risk assessment and driving factors analysis of Jingyang County based on GIS
摘要
Abstract
Faced with ecological problems caused by land use change amid ongoing urbanization,scientific assessment of the current landscape ecological status is of great significance.Taking Jingyang County as an example,this study used the land use transfer matrix and landscape ecological risk assessment model to explore the temporal and spatial differentiation charac-teristics of land use change and landscape ecological risk in the study area,and identified the main driving factors using the Geodetector.The results are as follows.① Between 2000 and 2020,the areas of cultivated land,forest land,shrubland and grassland in the study area showed an overall downward trend,while the areas of water bodies,unused land and construction land increased as a whole;cultivated land and construction land underwent the most dramatic transfer changes.② Over the 20 years,the overall landscape risk in the study area dropped from a medium-risk level to a low-risk level.In terms of area change,the area of low-risk areas increased,while the areas of relatively low-risk and high-risk areas decreased;spatially,landscape ecological risk was characterized by"higher in the north and lower in the south".③ The driving force analysis indicates that human disturbance degree,population density,and normalized difference vegetation index(NDVI)were the main driving factors.The research results can provide useful references for exploring ecological environment protection of Jingyang County.关键词
土地利用/景观生态风险评价/地理探测器/泾阳县/归一化差分植被指数(NDVI)Key words
land use/landscape ecological risk assessment/Geodetector/Jingyang County/normalized difference vegeta-tion index(NDVI)分类
天文与地球科学引用本文复制引用
姬姗姗,丁永庆,崔乐航..基于GIS的泾阳县景观生态风险评价及驱动因素分析[J].北京测绘,2026,40(9):1267-1274,8.基金项目
山东省自然科学基金(ZR2018LD003) （ZR2018LD003）
