摘要
应用模糊综合评价法,对2012年铁岭莲花湖中人工复合型湿地区以及湖泊和水库区水体的富营养化程度进行综合评价,同时用该方法的评价结果与综合营养状态指数法的评价结果进行比较。结果表明,两种评价方法得到的结果完全一致;模糊综合评价法的评价结果为莲花湖人工复合型湿地区水体为中度富营养,最大隶属度为0.566;湖泊和水库区水体为重度富营养,最大隶属度为0.568。评价结果与水体污染的实际状况比较吻合,客观地反应了莲花湖水体富营养化的情况。模糊综合评价法可以较好地体现水体富营养化程度的模糊性和连续性,通过隶属函数计算各个评价指标的权重,采用最大隶属度原则综合确定水体富营养化等级。
In order to evaluate wetland eutrophication scientifically and reasonably, the fuzzy comprehensive evaluation method was used to evaluate wetland eutrophication in the artificial compound area and the natural reservoir and lake area in 2012, which belonged to two types of wetland in Lianhua Lake. And the results of the fuzzy comprehensive evaluation method were compared with that of the comprehensive nutrition state in- dex method. The results showed that both the two methods got the same results. The water in the artificial compound area and the natural reservoir and lake area were moderate eutrophication and severe eutrophica- tion respectively by fuzzy comprehensive evaluation method, the maximum degree were 0.566 and 0.568 re- spectively. The evaluation results were consistent with the monitor data, which indicated that the analysis re- suits were reliable and objective. The fuzzy comprehensive evaluation method could reflect the continuity and ambiguity of the wetland eutrophication. The weight of each evaluation index was calculated by the member- ship function, and the eutrophication level was determined by the principle of maximum degree, so the fuzzy comprehensive evaluation method would be a good method to evaluate water eutrophication in the Lianhua Lake.
出处
《湿地科学》
CSCD
北大核心
2014年第1期97-101,共5页
Wetland Science
基金
国家水体污染控制与治理科技重大专项项目(2012ZX07505-001-05)资助
关键词
富营养化
模糊综合评价
综合营养状态指数评价
莲花湖
eutrophication
fuzzy comprehension evaluation
comprehensive nutrition state index evaluation
Lianhua Lake
