赣西北多时相耕地"非农化"特征及驱动因子分析OA

Systematically exploring the spatiotemporal characteristics and driving mechanisms of cultivated land non-agriculturalization is essential for optimizing territorial spatial plan-ning and balancing cultivated land protection and urban development.Based on multi-tem-poral land use data covering the period 2000-2020,land-use transfer matrix,hotspot anal-ysis and binary log c regression model were employed to analyze the spatiotemporal evolution characteristics and driving mechanisms of farmland non-agriculturalization in northwestern Jiangxi province.The results showed that the scale of farmland non-agriculturalization con-tinued to expand with an overall accelerating trend during the study period and conversion to built-up areas was identified as the primary destination;significant spatial agglomeration was observed in farmlands occupied by built-up areas,with high-confidence hotspots con-centrated in Yushui district,Fengcheng city,Chaisang district and Lianxi district,whereas no obvious cold spot agglomerations were identified.Elevation and slope imposed stable neg-ative constraints on the expansion of construction land.Nighttime light intensity served as the most stable positive driving factor across all periods,while population density and gross domestic product(GDP)intensified the non-agriculturalization process in specific stages.Areas adjacent to urban cores and along major traffic lines consistently presented high risks of cultivated land conversion.Specifically,suburban plains with flat terrain,vigorous eco-nomic activities and convenient transportation were identified as high-incidence zones of cul-tivated land non-agriculturalization.This study provides a scientific reference for targeted pro-tection and differentiated management of cultivated land in northwestern Jiangxi province.