【摘要】 分析了1996—2008年间,云南省各个县级行政区的耕地变化情况。运用GIS地统计的自相关性分析,得出云南省耕地变化的时空特性,为我们理解云南耕地状况提供了新的视角。全省的全局自相关系数Moran’s Index=0.299 5,显示云南省县级行政区的耕地变化率有较弱的正相关性。局域自相关系数空间分布图,显示云南省县级行政区的耕地变化有六种模式。最后得出结论,每种模式都是经济利益与政策双重影响下的结果。更多还原

【Abstract】 The cultivated land changes in Yunnan Province from 1996 to 2008 is analyzed.Based on GIS technology and spatial autocorrelation analysis,the spatial and temporal features of farmland change in Yunnan Province are investigated.This study provides a new perspective about the situation of farmland in Yunnan.The value of general Moran’s I is 0.299 5,which means that Yunnan farmland change presents weak positive spatial autocorrelation.Combining local Moran’s I with farmland variances,the change can be divided into 6 modes.Finally,this paper puts forward some recommendations for the protection of farmland.更多还原