典型区耕地变化与GDP值变化的脱钩研究

研究目的：为了深入分析耕地占用与GDP值增长之间的关系，研究不同区域之间耕地数量变化与GDP值变化的差异性与相似性，有利于平衡耕地占用与GDP值增长之间的矛盾，同时有利于“状态-压力-响应”体系的研究。研究方法：主要是应用脱钩理论，引入了脱钩指数来分析不同区域各时点耕地数量变化与GDP值变化之间的关系，同时运用相关分析与回归分析的方法，确立了不同研究区耕地数量与社会经济指标之间的相关性，建立了耕地面积与GDP值的回归曲线。研究结论：耕地数量的变化与GDP值之间的关系因地域差异而表现不同，但是也存在一些相似点，即各个区域相对脱钩与绝对脱钩的年份基本一样；此外脱钩理论有利于进一步深化土地利用的研究。

Decoupling Research between Change of Cultivated Land Quantity and Change of GDP in Representative Areas

The purpose was to analyze the relationship between the cultivated land occupation and increasing of GDP deeply, and researched the resemblance and difference between the change of cultivated land quantity and the change of GDP in different areas, which was useful for solving the contradiction between the cultivated land occupation and increasing of GDP and researching the situation - pressure - response system. The Decoupling theory was used in the paper and the decoupling index was introduced, meanwhile, the methods of correlation analysis and regression analysis were used to confirm the relation between the cultivated land occupation and increasing of GDP and established the regression equations concerning the cultivated land areas and GDP values in different areas. The conclusions were that the change of cultivated land quantity and the change of GDP in different areas were different overall, but it had similar points, in the same time, the Decoupling theory was helpful for further research in land use.