我国耕地资源数量安全的时空差异分析

Analysis on the Differences of Cultivated Land Resource Quantity Security on Time and Space in China

耕地资源数量安全是耕地资源安全非常重要的组成部分,它受到资源禀赋、经济发展水平、管理和政策等因素的影响。本文在分析耕地资源数量安全影响因素的基础上,构建其评价指标体系,并对我国耕地资源数量安全的时空差异规律进行了分析,结果表明,自改革开放以来,我国耕地资源数量安全状况呈先增后减的变化趋势;从安全水平的区域分布来看,北部和西部省份的安全水平普遍高于东部和南部省份,同时发现,区域安全水平与经济发展水平呈负相关关系。

Cultivated land resource quantity security is a very important component of cultivated land resource security. It is influenced by resources, the level of economic development, management, policy and other factors. The paper sets up indexs of assessing, and analyses the status of cultivated land resources quantity security on time and space. The result indicts that since the reform and open, the level of security ascended firstly then descended. From the point of view of regional distribution, the security standard of northern and western provinces are generally higher than that of eastern and southern provinces, and finds that regional security standard has a negative correlation with the level of economic development.