In the fourth part, the driving factors of the cultivated land change are studied in Zhangye Oasis.
第四部分研究了张掖绿洲耕地资源时空变化驱动要素。
参考来源 - 张掖绿洲耕地资源时空变化与驱动要素研究The Oasis of Zhangye is a kind of typical agricultural oasis, whose more than 90 percent of water resource is used for developing agriculture.
张掖绿洲是典型的农业绿洲，90％以上的水资源用于发展农业。
参考来源 - 水资源约束下的绿洲城镇发展模式研究——以张掖绿洲城镇为例·2,447,543篇论文数据，部分数据来源于NoteExpress
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.
应用GIS技术分析了1985—2006年张掖绿洲农田和草地的斑块动态特征。
By using GIS technology, this paper studied the patch dynamics of cropland and grassland in Zhangye oasis, Gansu Province in 1985-2006.
利用布设在黑河流域中游的张掖绿洲区的一套自动气象观测系统在2003 - 2004年的资料，分析了一个完整年度内春小麦和夏玉米间作农田生态系统的辐射收支及其变化特征。
Based on the experiments conducting in an intercropping field in Zhangye Oasis in the middle reach of Heihe River basin in 2003-2004, the characteristics of radiation budget are analyzed.
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