| 基于指标模糊权和协调性下的地下水水质评价模型构建及应用 |
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| 引用本文： | 于会彬,栗越妍,席北斗,郭旭晶,何连生,苏婧,许其功.基于指标模糊权和协调性下的地下水水质评价模型构建及应用[J].环境工程,2009,27(4). |
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| 作者姓名： | 于会彬 栗越妍 席北斗 郭旭晶 何连生 苏婧 许其功 |
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| 作者单位： | 1. 北京师范大学环境学院,北京,100875;中国环境科学研究院,北京,100012
2. 中国环境科学研究院,北京,100012 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目(2005CB724203) |
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| 摘 要： | 在地下水质量标准中,各指标权重的选择与权重的内涵存在着不确定性;同一指标的分级界点值差异显著,近似地呈现几何级数变化。基于以上这两种情况,构建基于指标模糊权和协调性下的地下水水质评价模型。应用层次分析法和专家调查9标度法确定指标的相对权重,结合贝塔系数计算出指标的模糊权重。对评价标准及待评价地下水水质监测值进行对数变换,采用距离测度法来构造隶属函数,并对其进行求余,按最大隶属原则来评判地下水质量等级。应用此模型对徐州市的重要水源地——张集地下水水质进行评价。结果表明:研究区的20个采样点水质为Ⅱ、Ⅲ级的占90%,符合饮用水的要求。与投影寻踪法的评价结果基本一致。
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| 关 键 词： | 地下水 模糊权 协调性 对数变换 距离测度 |
MODEL FOR EVALUATION OF GROUNDWATER QUALITY BASED ON COORDINATION AND FUZZY WEIGHT AMONG INDICATORS |
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| Yu Huibin,Li Yueyan,Xi Beidou,Guo Xujing,He Liansheng,Su Jing,Xu Qigong.MODEL FOR EVALUATION OF GROUNDWATER QUALITY BASED ON COORDINATION AND FUZZY WEIGHT AMONG INDICATORS[J].Environmental Engineering,2009,27(4). |
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| Authors: | Yu Huibin Li Yueyan Xi Beidou Guo Xujing He Liansheng Su Jing Xu Qigong |
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| Institution: | 1;2;1;2;1;2;1.School of Environment;Beijing Normal University;Beijing 100875;China;2.Chinese Research Academy of Environmental Sciences;Beijing 100012;China |
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| Abstract: | There were great differences among the boundary data of the same indicator in quality standard for groundwater,and values of boundary data increased nearly in geometric progression.In addition,uncertainty emerged in weights' selection and meaning of indicators.Based on the above consideration,a model was established for evaluation of groundwater quality.Logarithmic transformations were taken on both the boundary data of the standard and the monitoring data of the sites to be evaluated,which improved the coo... |
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| Keywords: | groundwater fuzzy weight coordination logarithmic transformations distance measure |
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