标准差权重模糊评价法对南水北调中线水源区水质的评价  

Evaluation of water quality by standard deviation weight fuzzy assessment on water source area in Middle Line Project of Transferring Water from South to North

作　　者：庞发虎[1] 张乃群[1] 李玉英[1] 柴彦君[2] 杜瑞卿[1] 

机构地区：[1]南阳师范学院生命科学与技术学院,河南南阳473061 [2]华中农业大学资源与环境学院,湖北武汉430070

出　　处：《西北农林科技大学学报（自然科学版）》2008年第2期229-234,共6页Journal of Northwest A&F University(Natural Science Edition)

基　　金：河南省自然科学基金项目(0511030700)

摘　　要：【目的】对南水北调中线水源区水营养度做出及时、准确、合理的综合评价，为水资源合理有效地监测、改善和利用服务。【方法】2004—03～2006-08对南水北调中线水源区渠首（S1）、库心（S2）、丹江口水库上游大石桥（S3）3个采样点水体进行了9项理化指标的检测，并应用标准差权重模糊评价法对水质进行综合评价。【结果】南水北调中线水源区9个理化指标在3个采样点上有差异；由标准差权重模糊评价法加权海明距离最小值（在S1、S2和S33个采样点分别为0．1289，0．1585和0．1424）可知渠首水质处于中营养状态；库心水质处于贫营养状态；丹江口水入库上游大石桥水质处于中营养状态；由叶绿素营养状态指数（44．169）可知南水北调水源区水质处于中营养状态。【结论】目前南水北调中线水源区水质营养状况并不理想，基本处于中营养状态，还有待改善；用标准差权重模糊评价法对水质进行综合评价较单指标评价法更为全面准确。[Objective] Accurate,prompt and reasonable evaluation of water quality in water source area in Middle Line Project of Transferring Water from South to North can be used to monitor,improve and utilize the water resources effectivily. [Method] According to the investigating and monitoring of 9 physicochemical index at three points in water source area of the Middle Line Project of Transferring Water from South to north in Qushou（S1）,Kuxin（S2）,Danjiangkou upper reservoir Dashiqiao（S3）,water quality was evaluated by using standard deviation weight fuzzy assessment from march 2004 to august 2006. [Result] There were differences of among the different sample sites using physicochemical index monitoring; The weighted haiming distance minimum of standard deviation weight fuzzy assessment in S1,S2, S3 three section were respectively 0. 128 9,0. 158 5 and 0. 142 4, from these we concluded that Qushow（S1） belongs to middle nutrition status;Kuxin（S2） belongs to deficient nutrition staus;Danjiangkou upper reservoir Dashiqiao（S3） belongs to middle nutrition status;Cholrophyll nutrition status index was 44. 169, water quality on water source area of Middle Line Project of Transferring Water form South to Morth belongs to middle nutrition status. [Conclusion] Water quality nutrition status is not suitable in sater source area of Middle Line Proiect of Transferring Water from South to North,belongs to middle nutrition status. Standard deviation weight fuzzy assessment was more accurate and comprehensive and worth applying.

关 键 词：南水北调中线水源区 理化检测 标准差权重模糊评价法 水营养度 

分 类 号：X13[环境科学与工程—环境科学]