因此，展开耕地资源变化的研究具有重要的理论意义和实践意义。
Therefore, it is significant to study the change of cultivated land in both theory and practice.
通过引入耕地面积相对变化率计算分析了张掖绿洲各区县耕地资源变化的区域差异。
By calculating the relative change ratio of the cultivated land, the author analyzes the difference of the cultivated land changes in the different sections of Zhangye Oasis.
在遥感和GIS技术的支持下，分析了东北黑土区1986 ~ 2000年耕地资源变化特征与空间格局。
Based on RS and GIS, the cropland change characteristics and spatial pattern in black soil zone of Northeast China from 1986 to 2000 were analyzed.
文章分别从人均耕地阈值、绝对承载力与相对承载容量三个不同角度来探讨分析了山西省土地资源人口承载力的动态变化特征。
The paper discusses the dynamic characteristic of population supporting capacity of land from three aspects; the threshold area per capita, the absolute supporting capacity and the relat.
河南省的耕地资源在数量上不断下降，经历了一个先减少后稍有增加并趋于平缓的变化态势。研究认为，耕地资源的空间转移并没有引起相一致的粮食生产质心的转移。
The quantity changes of the cropland of Henan Province tended to an equilibrium situation after experienced a reduce and ascend process by analyzing the statistics data in recent 20 years.
河南省的耕地资源在数量上不断下降，经历了一个先减少后稍有增加并趋于平缓的变化态势。研究认为，耕地资源的空间转移并没有引起相一致的粮食生产质心的转移。
The quantity changes of the cropland of Henan Province tended to an equilibrium situation after experienced a reduce and ascend process by analyzing the statistics data in recent 20 years.
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