耕地非农化压力及其区域差异是建设用地指标区际配置的基础。湖北省社会经济发展与城镇化水平存在显著的区域差异,耕地非农化压力区际差异明显。通过对比人均建设用地指标的理论值与实际值之间的差异开展湖北省耕地非农化压力的时空格局研究,结合重心迁移模型,采用Arc GIS空间分析方法揭示了湖北省耕地非农化压力的时空演化路径。结果表明:(1)湖北省耕地非农化压力存在显著的区域差异,西部地区中恩施市的耕地非农化压力较大,其他城市耕地非农化压力较小且相对变化较小;东部地区的耕地非农化压力较大且相对变化较大;(2)2000-2011年,湖北省耕地非农化压力的重心总体向东北方向迁移,表明湖北省东部一些城市的耕地非农化压力相对西部一些城市的增长较大。(3)重心迁移距离为17.37 km,相对较小,表明湖北省耕地非农化压力于2000-2011年整体变化相对稳定。
The pressure of cropland non-agriculturalization and its regional difference are the foundation of regional allocation of construction lands. There are significant regional differences between development of social economy and level of urbanization in Hubei Province, and the pressure of cropland non-agriculturalization is significant in these regional differences. In this paper, through the comparison between the theoretical value and actual value of construction land per capita, we studied the spatial and temporal pattern of the pressure of the cropland non-agriculturalization in Hubei Province. Combined with the gravity center model we revealed the path of spatial and temporal pattern of the cropland non- agriculturalization in Hubei Province. The results showed that: 1) There was significant regional difference in the cropland non-agriculturalization in Hubei Province. The pressure of the cropland non-agriculturalization of Enshi City in the western region was larger, while was smaller in other cities. The pressure of the cropland non-agriculturalization in the eastern part is larger and there was relatively large change. 2) During 2000-2011 in Hubei Province, the migration of the gravity of the pressure of the cropland non-agriculturalization moved to the northeast, and the eastern of Hubei Province showed that the individual cities of the pressure of the cropland non-agriculturalization grown relatively larger to the western individual cities. 3) The migration of the distance was 17.37 km and was relative small, showing that the change of the pressure of the cropland non-agriculturalization in Hubei Province during 2000-2011 was relative stable.