关键词: 永久基本农田, 合理性评价, 空间布局, 核密度分析

Abstract: In order to satisfy the general requirements of the current national spatial planning, promoting the permanent adjustment and optimization of the layout of the basic farmland protection areas, this paper takes the permanent prime farmland that has been designated by the 10th Division of the Xinjiang Production and Construction Corps as an example, from the perspective of land and space planning, selecting six indicators, using entropy method and comprehensive evaluation method, with the help of ArcGIS spatial analysis and nuclear density analysis tools, the rationality evaluation research and spatial layout analysis of the permanent prime farmland protection area delineated by the 10th division were carried out, the results showed that the rationality index of permanent prime farmland of the 10th Division was between 51.20 and 99.40, with an average value of 81.36, the rationality index was relatively high, but part of the permanent basic farmland did not fit into the territorial space planning of the 10th division. The overall spatial distribution is characterized by dense distribution in the east and sparse distribution in the west, and partial distribution is characterized by dense distribution in the middle and sparse distribution around. The density of permanent basic farmland patches in the core area is 20-25 per hectare. Based on the evaluation results, the 10th Divisions permanent basic farmland was designated as priority preservation areas, stabilization and maintenance areas, remediation and enhancement areas, preservation and development areas, and scaleddown and transferredout areas, the priority preservation areas and stabilization and maintenance areas will be used as agricultural land for regional development to ensure livelihood, the remediation and enhancement areas should make up for the shortcomings in utilization and improve the overall advantages of permanent basic farmland, the preservation and development areas should rely on remediation methods to keep the basic requirements of permanent basic farmland. The scaleddown and transferredout areas are mostly scattered marginal arable land, which is not suitable to continue to be designated as permanent basic farmland reserves and should be transferred out.

Key words: permanent prime farmland, rationality evaluation, spatial layout, nuclear density analysis