基于ARCGIS技术下的农田土壤重金属分布特征研究——以华县为例

Based on the ARCGIS Technology for Distribution Characteristics and Pollution Assessment of the Farmland Soil Heavy Metals——A Case Study of Huaxian County

以华县农田土壤为研究对象,按照地理信息要求,布点采样,分析了表层土壤中5种重金属的含量。通过ARCGIS9.3软件,利用空间插值的方法对当地土壤重金属分布情况进行研究。研究结果表明,华县的华州镇与柳州镇都受到不同程度的重金属污染,其中莲花寺受到的污染最为严重。必须采取修复措施,加强对该地区污染的防治工作,避免对人体健康造成危害。

In order to study the soil distribution characteristics of heavy mental in Huaxian,sampling and analysis the content of the 5 kinds of heavy mental in surface sediments.Through the ARCGIS9.3 software,using the Spatial interpolation for local soil heavy metals distribution case studies.The results show,in the totally study process,that Huazhou region and Liuzhou town area has been suffered pollution in different degree,while the Lianhua Temple area is worst.Thus,appropriate measures should be adopted to strengthen the prevention and control of pollution in the region and avoid the harm to human health.