Then the temporal and spatial characteristics of population density change were analyzed based on GIS.
在人口密度模拟的基础上,用GIS对上海人口格网数据进行简要的空间分析。
The temporal and spatial characteristics of surface water quality in Jiyun river are analyzed based on environmental measurement data.
通过对不同时段和不同监测点环境监测数据的对比分析,研究蓟运河干流地表水质的时空变化特征。
The temporal and spatial characteristics of land use change in Nanxian County of Hunan Province was analyzed according to the materials from 1983 to 2003.
利用1983~2003年土地统计资料,运用数理统计分析方法,选取土地利用动态变化相关模型,对湖南南县20年土地利用变化的时空特征进行了分析。
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