基于ArcGIS和ArcScene的污染场地土壤铬三维空间格局研究  

3D Spatial Pattern Study of Cr in Contaminated Site Based on ArcGIS and ArcScene

作　　者：方敦[1,2] 

机构地区：[1]湖北民族学院科技学院,湖北恩施445000 [2]北京鼎实环境工程有限公司,北京100029

出　　处：《湖北民族学院学报（自然科学版）》2014年第2期237-240,共4页Journal of Hubei Minzu University(Natural Science Edition)

基　　金：国家自然科学基金项目(41261060)

摘　　要：以某铬污染场地为例,结合场地属性数据,开展了基于ArcGIS反距离加权(IDW)插值法和三维场景工具ArcScene的场地土壤铬(Cr)污染空间格局分析.反距离插值分析表明:场地污染物Cr主要集中在第一、二层土壤中,污染物横向分布表现为中部高四周低,纵向污染范围由第一层至第三层呈现急剧缩减的整体空间分布特征,污染物Cr在场地中的空间分布与原厂工艺布局关联度较高;三维场景工具ArcScene实现了场地Cr污染土壤空间实体的3D可视化表达,增强了场地评价成果的直观性.In this paper , ArcGIS has been used to assess the spatial distribution pattern of chromium （ Cr） based on the attribute data of the contaminated site .A GIS based 3D analysis process was pro-posed,2D spatial analyst and 3D visualization expression of Cr were accomplished by using ArcGIS .In-verse distance weighting （ IDW） method was used for the spatial interpolation analysis of soil Cr .The re-sults of IDW showed that Cr pollution was mainly concentrated in the first and second soil layers , and Cr content of the central soil was higher than that of the surrounding soil , and a drastically decrease of Cr pollution range was found from the first layer to the third layer;strong correlation between Cr data spatial distribution and original factory process layout was found .3D visualization expression of Cr polluted spa-tial entities was implemented by using ArcScene and visibility of the evaluation results was enhanced .

关 键 词：污染场地 空间分析 重金属 ARCGIS 土壤 

分 类 号：X53[环境科学与工程—环境工程] X82