Spatial overlay is an important model of spatial analysis in GIS.
空间叠加模型是地理信息系统（GIS）中重要的空间分析模型。
Methods employed include spatial analysis in GIS, hierarchy analysis, correlation analysis.
研究方法：GIS空间分析法、层次分析法、相关性分析法。
Overlap analysis is a widely used spatial operation for the needs of spatial analysis in GIS.
叠置分析是GIS进行空间分析时常用的一种空间操作。
Region is one basic unit of spatial analysis in GIS applications, which is a kind of entity existing widely in many fields such as environment science, land information science and so on.
区域是GIS空间分析的基本单元。它是环境科学、土壤科学等领域中广泛存在的一类地理实体。
Region is one basic unit of spatial analysis in GIS applications, which is a kind of entity existing widely in many fields such as environment science, land information science and so on.
区域是GIS空间分析的基本单元。它是环境科学、土壤科学等领域中广泛存在的一类地理实体。
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