郭云开,谢琼,安冠星,周烽松,李健,丁美青

• 1:长沙理工大学交通运输工程学院

摘要(Abstract)：

针对稀疏采样难以准确估测区域土壤重金属综合污染情况和迁移变化规律的问题,提出基于GIS的多属性决策组合赋权灰色综合评价模型。首先采用GIS技术揭示土壤重金属空间变异和污染分布格局;然后利用最大化熵理论集成主客观因素,架构优化组合赋权的土壤重金属污染灰色综合评价体系;最后以试验区土壤中8种(铜、锌、铅、镉、砷、铬、汞、镍)重金属的综合污染情况为例,检验该方法应用效果。结果表明:最优组合权重的灰色综合分析方法兼顾主观偏好和客观属性,其评价结果具有更高的可信度和风险辨识度,提高了综合评价的合理性与有效性,可为土壤重金属污染监测提供方案参考。

关键词(KeyWords)： GIS;空间分布;重金属污染;灰色关联法;最大熵;污染评价

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(41471421,41671498);; 湖南省科技计划项目(2015NK3035)

作者(Author): 郭云开,谢琼,安冠星,周烽松,李健,丁美青

DOI: 10.16251/j.cnki.1009-2307.2017.05.031

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