基于ArcGIS与信息熵法的土地环境污染风险评价研究  

Research on Land Environmental Pollution Risk Assessment based on ArcGIS and Information Entropy Method

作　　者：李鹏飞 秦聪 Li Pengfei;Qin Cong(Shandong Kotel Informatics Co.,Ltd.,Yantai 264000,China)

机构地区：[1]山东光庭信息技术有限公司,山东烟台264000

出　　处：《环境科学与管理》2022年第9期185-189,共5页Environmental Science and Management

摘　　要：在当前土地环境污染风险评价的研究中,判定风险的精度及其自身的风险判定能力需要进一步提高。针对这一问题,提出基于ArcGIS与信息熵法的土地环境污染风险评价研究。利用ArcGIS建立待评价区域的土地环境模型,确定多个风险因子,对各个风险因子进行空间化处理。模拟无突变情况和无外部输入量两种土壤环境,预测土壤重金属的累积量,借助信息熵法构建风险评价矩阵,实现对土地环境污染风险的评价。实验结果表明:设计的基于ArcGIS与信息熵法的风险评价方法风险数据拟合结果最稳定,整体评价精度高,该方法的风险判定能力得到了提升。In the current research on land environmental pollution risk assessment,the accuracy of risk determination and its own risk determination ability need to be further improved.Aiming at this problem,this paper proposes a research on land environmental pollution risk assessment based on ArcGIS and information entropy method.It used ArcGIS to establish the land environment model of the area to determine multiple risk factors,and perform spatial processing on each risk factor.The analysis simulated two soil environments without mutation and without external input,predicted the accumulation of heavy metals in soil,and constructed a risk assessment matrix with the help of information entropy method to realize the assessment of land environmental pollution risk.The experimental results show that the designed risk assessment method based on ArcGIS and information entropy method has the most stable risk data fitting results.The overall assessment accuracy is high,and the risk determination ability of this method has been improved.

关 键 词：ARCGIS 信息熵法 土地环境 污染风险 生态灾害 

分 类 号：X301[环境科学与工程—环境工程]