不同经济阶段农地非农化速率及空间差异研究——以江苏省为例

Change Rate and Regional Difference of Land Conversion in Different Stages of Economic Development——A Case Study of Jiangsu Province

农地非农化是经济发展过程中的一种必然现象。相对于经济发展而言,农地非农化也是一种要素投入,但不同的经济发展阶段,这种要素投入的作用是不同的。为了阐明农地非农化空间差异程度及其与经济发展阶段的关系,引入占用耕地动态度和农地非农化不平衡指数进行了分析。研究表明,随着经济发展阶段的推进,从前工业化阶段向工业化高级阶段,农地非农化的速度是逐渐下降的;各种地类中,城市用地和工矿用地占用耕地增加速度是最快的。与此同时,农地非农化相对于GDP、二三产业产值的不平衡性在不断增加,而对于二三产业从业人员的不平衡性则有所减缓。从总体上来说,江苏省农地非农化的地域差异与各地的经济发展条件基本上是相适应的。

Land conversion is an inevitable phenomenon in the process of economic development.As to the economic development,land conversion is an input factor and however,in different stages of economic development,the factor has different effects on economic development.In order to explain the relationship between the spatial difference of land conversion and the stages of economic development,this paper adopts the change rate of arable land occupation and imbalance index of land conversion.Results show that the rate of farmland conversion is gradually descending,among all land categories and the change rate of arable land occupation in city construction,industry,and mining is the fastest.At the same time,the imbalance of land conversion relative to GDP and non-agricultural sectors is increasing and the imbalance relative to labor of non-agricultural sectors is decreasing.On the whole,spatial difference of land conversion in Jiangsu Province is basically in conformity with the level of economic development.