基于变权欧式距离模型的水环境质量评价  

Evaluation Method of Water Quality Based on Continental Distance Model with Varying Weight

作　　者：邓仁健[1] 

机构地区：[1]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《水电能源科学》2008年第2期41-43,23,共4页Water Resources and Power

基　　金：湖南省自然科学基金资助项目(04JJ3034);湖南省教育厅科研基金资助项目(03C077)

摘　　要：针对加权欧式距离模型变权系数的缺点,利用待评价单元中各水环境评价因子的环境污染贡献率确定相应因子的权重,由此对每个待评单元衍生出适合其自身的距离等级评价准则,从而实现建立起水环境质量评价的变权欧式距离模型,最后将该模型应用于水环境质量评价实例中。将其与模糊综合评价结果进行比较分析,结果表明,使用该模型可获得良好的效果,可广泛应用于其他领域的环境质量评价。Considering the disadvantage of conventional continental distance model with varying weight, the auther established the water evaluation factor weight of every item according to these factors＇ contamination ratio, which will be induced as a new concept. This new concept is able to show the influence differences among the environment factors selected, avoiding using the same weight for which might not be fit. Then, the continental distance model with varying weights, which will be capable of evaluating the water environment quality, is established. After the application of this model, the results of this model and fuzzy integrative evaluation model are compared and analyzed properly and the conclusion was drawn. The conclusion is that, this model is more reasonable and scientific because more practical weights are adopted. And it can get favourable result and be widely applied in other evaluation field of environment quality.

关 键 词：变权欧式距离模型 水环境质量 评价 污染贡献率 

分 类 号：X824[环境科学与工程—环境工程]