摘要
白河是南阳市的重要旅游胜地和饮用水源地。为了解白河水质状况,2010年在白河设置了7个监测断面,采集了12个月的水样来评价。鉴于其他评价方法的局限性和白河水质评价的重要性,利用主成分分析降维的思想筛选评价因子,利用改进后的模糊贴近度法来评价水质。最后,选择溶解氧、高锰酸盐指数、氨氮、化学需氧量、总氮、总磷、氟化物和粪大肠杆菌评价因子,用改进的模糊贴近度法评价水质状况。结果表明,从上游到下游呈现出逐渐恶化的趋势。鸭河水库坝下和内乡盆窖断面水质级别为Ⅰ级,淅川张营水质级别为Ⅲ级,方城夏河、邓州汲滩、新野梅湾和新甸铺水质级别为Ⅴ级。改进后的方法与模糊综合评价法和层次分析法评价结果一致。
The Baihe River is an important tourist destination and the source of drinking water in Nanyang .To evaluate water quality , seven monitoring sections were established ,water samples were collected in 12 months of 2010 ,a new model based on principal com-ponent analysis was proposed to overcome limitations of other evaluation methods and the importance of the Baihe River water quality evaluation .In the new model ,factors were selected by dimension reduction principle .Meanwhile ,a case study of source water quali-ty assessment using the improved model in the Baihe River ,was presented .The result showed that from upstream to downstream showing a worsening trend . water quality level of Duck River reservoir and Neixiang section is Ⅰ .Xichuanzhangying is Ⅲ . Fangchengxiahe ,Dengzhoujitan ,Xinyemeiwan and Xin dian pu is Ⅴ .The improved method and analytic hierarchy process （AHP） and fuzzy comprehensive evaluation method evaluation results are in agreement with each other .
出处
《中国农村水利水电》
北大核心
2014年第9期47-52,共6页
China Rural Water and Hydropower
基金
国家自然科学基金(413712751)
关键词
模糊数学
贴近度
评价因子权重
水质评价
fuzzy mathematics
nearness
index weight
water quality evaluation
