瓦埠湖流域水环境评价与水生态健康评估
发布时间：2018-11-24 08:52
【摘要】：瓦埠湖是淮河流域最大的湖泊,同时是安徽省五大淡水湖泊之一,地涉六安、合肥、淮南三市。瓦埠湖是“引江济淮”工程的重要水体、淮河流域重要的蓄滞洪区,而且又是周围居民的饮用水源,其水环境质量直接影响流域经济社会发展。目前全国还没有专家和学者调查和研究瓦埠湖水环境现状,本文旨在对瓦埠湖水环境现状和流域污染源做具体分析,同时对瓦埠湖水生态健康进行评估。论文主要包含以下几点:(1)瓦埠湖依据地理因素可分为北部湖区、中部湖区和南部湖区,流域主要大型河流为新河、庄墓河、陡涧河和东淝河。本文依据2011年8月-2015年12月瓦埠湖流域水质监测数据,参考相关相关文献的数据处理和分析方法对瓦埠湖三个湖区和四条入(出)湖河流的水质进行分析,并对瓦埠湖水体富营养化状况进行评价。内美罗指数法评价结果显示:北湖区去水质为Ⅲ水,中部湖区和南部湖区为水质Ⅳ类水;新河、东淝河和陡涧河水质为Ⅳ类水,庄墓河水质为Ⅴ类水。富营养化结果评价显示湖区水体综合富营养化指数超过50,为轻度富营养化状态。(2)为进一步了解瓦埠湖水环境现状,选取2014年1月-2015年12月监测数据,采用基于熵值分析法的集对分析模型对瓦埠湖三个湖区水质和底泥进行评价。水质评价结果显示:北湖区去水质为Ⅲ水,中部湖区和南部湖区为水质Ⅳ类水。底泥评价结果显示三个湖区底泥质量均为Ⅴ类标准。(3)为了了解瓦埠湖流域的污染状况,本文对瓦埠湖流域的主要污染源进行调查,并对污染物的排放量和入湖量进行分析。结果显示,瓦埠湖流域主要污染物为总磷和总氮,主要污染源为农业面源污染。瓦埠湖流域污染物主要来源于寿县。(4)水生态综合健康指数表明,瓦埠湖目前的健康状态为中等,较上世纪八十年代和2002年有所下降。瓦埠湖水体中总氮、总磷和COD含量均有所上升,水体浮游植物和浮游动物增加,底栖动物量减少,水生态系统多样性下降。
[Abstract]:Wabu Lake is the largest lake in the Huaihe River Basin and one of the five largest freshwater lakes in Anhui Province. Wabu Lake is an important water body in the project of "diversion from the Yangtze River to Jihuai River". It is an important flood storage and detention area in the Huaihe River Basin and is also a drinking water source for the surrounding residents. The quality of its water environment directly affects the economic and social development of the basin. At present, there are no experts and scholars in China to investigate and study the current situation of water environment in Wabu Lake. The purpose of this paper is to make a concrete analysis of the current situation of water environment in Wabu Lake and the pollution sources of the basin, and to evaluate the ecological health of the water in Wabu Lake. The paper mainly includes the following points: (1) the Wabu Lake can be divided into the northern lake region, the central lake area and the southern lake area according to the geographical factors. The main rivers in the basin are Xinhe River, Zhuangmu River, steep Jianhe River and Dongfeihe River. Based on the monitoring data of water quality in Wabu Lake Basin from August 2011 to December 2015, the water quality of three lakes and four rivers in and out of Lake Wabu Lake is analyzed with reference to the data processing and analysis method of relevant literature. The eutrophication of Wabu Lake was evaluated. The evaluation results of Nemero index showed that the water quality of the north lake region was 鈪，
本文编号：2353036
[Abstract]:Wabu Lake is the largest lake in the Huaihe River Basin and one of the five largest freshwater lakes in Anhui Province. Wabu Lake is an important water body in the project of "diversion from the Yangtze River to Jihuai River". It is an important flood storage and detention area in the Huaihe River Basin and is also a drinking water source for the surrounding residents. The quality of its water environment directly affects the economic and social development of the basin. At present, there are no experts and scholars in China to investigate and study the current situation of water environment in Wabu Lake. The purpose of this paper is to make a concrete analysis of the current situation of water environment in Wabu Lake and the pollution sources of the basin, and to evaluate the ecological health of the water in Wabu Lake. The paper mainly includes the following points: (1) the Wabu Lake can be divided into the northern lake region, the central lake area and the southern lake area according to the geographical factors. The main rivers in the basin are Xinhe River, Zhuangmu River, steep Jianhe River and Dongfeihe River. Based on the monitoring data of water quality in Wabu Lake Basin from August 2011 to December 2015, the water quality of three lakes and four rivers in and out of Lake Wabu Lake is analyzed with reference to the data processing and analysis method of relevant literature. The eutrophication of Wabu Lake was evaluated. The evaluation results of Nemero index showed that the water quality of the north lake region was 鈪，
本文编号：2353036
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