SUN Cai-zhi,WANG Yan-xin.The Study on Intrinsic Vulnerability of Nitrate in Groundwater in the Lower Reach of Liaohe River Based on WOE Method[J].Research of Soil and Water Conservation,2009,16(04):80-84.
基于WOE法的下辽河平原地下水硝酸盐氮特殊脆弱性研究
- Title:
- The Study on Intrinsic Vulnerability of Nitrate in Groundwater in the Lower Reach of Liaohe River Based on WOE Method
- 分类号:
- X523
- 摘要:
- 通过分析影响下辽河平原地区地下水特殊脆弱性的因子，建立基于GIS平台的预测因子图层数据库，利用Arc-Wofe系统进行证据权重法模拟预测，对下辽河平原区地下水硝酸盐氮特殊脆弱性进行研究，得到硝酸盐氮浓度后验概率分布图。从预测结果看，后验概率高或较高的地区正是硝酸盐氮浓度已经比较高的地区或预测的硝酸盐氮浓度高值区；并通过多种途径检验了研究结果的客观合理性。
- Abstract:
- The prediction factor database was constructed by GIS flat according to the analysis of factors which influence the groundwater intrinsic vulnerability in the lower reach of Liaohe River, and then the weight of evidence method was applied to simulate the groundwater intrinsic vulnerability on the Arc-Wofe system, the posteriori probability distribution map of nitrate concentration was obtained. The prediction result showed that the region with high posteriori probability usually was corresponding to a high nitrate concentation, and several methods were applied to testify the rationality of result.
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备注/Memo
收稿日期:2009-02-16。
基金项目:国家自然科学基金（40501013）；辽宁省教育厅创新团队课题（2008T100）
作者简介:孙才志（1970-），男，山东烟台人，博士后，教授，博士生导师，从事地下水资源评价与管理研究。E-mail：suncaizhi@sohu.com