基于天空地一体化的补充耕地利用特征识别与管护优化研究OA

As the connotation of China's"requisition-compensation balance"policy evolves towards a synergistic equilibrium of"quantity-quality-ecology,"the post-construction management of supplementary cultivated land emerged as a critical imperative.However,effective monitoring in Zhejiang Province remained challenging due to prominent human-land conflicts,expansive hilly and mountainous terrains,and the highly fragmented distribution of supplementary land resources.To address the limitations of conventional monitoring methods,such as inadequate technological synergy,poor adaptability to complex mountainous regions,and a disconnect from practical management,a"space-air-ground"integrated monitoring framework was constructed.By coupling satellite remote sensing(macro-screening),UAV patrols(meso-identification),and field verification(micro-diagnosis),this system enabled multi-tier,high-precision monitoring.An empirical analysis of 29 064 land patches across the province indicated that 98.9%of the patches maintained stable grain cultivation under normal management.Anomalies accounted for 1.1%of the total patches,which were overwhelmingly dominated by"non-grain production"(93.8%,mainly facility agriculture and economic fruit forests),followed by abandonment(6.1%),and"non-agricultural use"(0.1%),predominantly clustered in mountainous regions and peri-urban transition zones.Attribution diagnosis revealed that these anomalies were fundamentally driven by plot fragmentation,marginal geographic locations,and deficient agricultural infrastructure(e.g.,irrigation,drainage,and field roads).The result concluded that spatial optimization strategies,such as land consolidation,improving spatial contiguity,and facilitating the spatial replacement among cultivated land,forestry,and orchards were crucial pathways for resolving the management dilemmas of supplementary cultivated land in China's southern hilly regions.