农业展望2024，Vol.20Issue(12)：65-74,10.
超大城市典型区耕地格局变化及驱动研究
Change and Driving Pattern of Cultivated Land in Typical Areas of Megacities
摘要
Abstract
It is of great significance to study the evolution characteristics and driving mechanism of cultivated land pattern in typical areas of megacities for high-quality economic and social development and the implementation of cultivated land protection.ArcGIS spatial analysis and Fragstatss econometric analysis were used to reveal the spatiotemporal evolution characteristics of cultivated land in Guangming district of Shenzhen from 2000 to 2020,and 12 potential driving factors were selected to analyze the driving mechanism of cultivated land pattern change by using the optimal parameter geographic detector model.The results showed:(1)From 2000 to 2020,the amount of cultivated land in Guangming district showed a decreasing trend,and the change process was"sharp decrease,slow decrease,sharp increase,slow decrease".In 21 years,the total area of cultivated land decreased by about 630.01 hectares,a decrease of 38％.(2)The center of gravity of cultivated land shifted to the north as a whole,the local area showed diffusion to the edge,the cultivated land in the middle area was gradually lost due to urban construction occupation,and the fragmentation of cultivated land was intensified,forming an urban-field pattern of"north and south fields,intermediate cities".(3)The spatiotemporal characteristics of cultivated land pattern change in Guangming district are the result of the interaction between cultivated land protection policy factors and economic development factors,and the adjustment of permanent basic farmland demarcation during the planning period significantly affects the spatial change of cultivated land.Based on this,highly urbanized areas should continue to promote the optimization of cultivated land layout,realize the centralized and contiguous protection and quality improvement of cultivated land,gradually solve the problem of cultivated land fragmentation,and at the same time give full play to the advantages of capital and technology,explore innovative new models of cultivated land protection and utilization,and tap the scientific,technological,ecological and cultural value of cultivated land.关键词
超大城市/耕地格局/景观格局指数/地理探测器/驱动因素/深圳Key words
megacities/cultivated land pattern/landscape index/Geo Detector/driving factors/Shenzhen引用本文复制引用
朱灵伟,彭云飞..超大城市典型区耕地格局变化及驱动研究[J].农业展望,2024,20(12):65-74,10.基金项目
国土空间规划体系下深圳市农业单元划定及管控导则编制与实施项目(SZDL2022000957) （SZDL2022000957）
