"三调"以来安徽省设施农用地占用耕地资源情况浅析与建议OA

To provide data support for addressing the challenge of balancing the rapid development of facility agriculture with farmland protec-tion goals,the quantity,spatial distribution,and quality characteristics of farmland occupied by facility agricultural land in Anhui Province since the Third National Land Survey were examined.The findings indicated that while the total area of facility agricultural land in Anhui Province continued to expand from 2019 to 2023,the growth rate had gradually declined.Concurrently,the area of cultivated land occupied by such facili-ties has exhibited a general year-on-year decreasing trend.In terms of scale distribution,significant farmland occupation was primarily concen-trated in the northern Anhui Plain during the study period,which also serves as the regional center of gravity for farmland occupation across the province.Regarding spatial shift trends,the centroid of occupied cultivated land shifted progressively northward and slightly eastward from 2019 to 2023.From the perspective of spatial autocorrelation,the distribution of occupied cultivated land demonstrates significant clustering at the provincial level.High-high clustering areas are predominantly located in northern Anhui,whereas low-low clusters are mainly found in southern Anhui.With respect to land quality,the overall proportion of high-quality occupied cultivated land remains high.From 2020 to 2023,the share of high-quality cultivated land occupied by facility agriculture remained stable,ranging between 75%and 84%.Counties(cities and districts)with consistently high-quality occupied farmland are primarily situated in northern Anhui and parts of the Yangtze River Plain.