江西省农村典型小河流水质调查与评价

发布时间：2018-05-20 00:42

  本文选题：农村 + 小河流　； 参考：《南昌工程学院》2015年硕士论文

【摘要】：目前对河流水质的研究主要集中在较大的河流、湖泊以及水体污染严重的河流,而对农村小河流的研究较少。本论文选取位于江西省内的十一条典型的农村小河流,河流涉及区域有抚河流域、九江地区、赣州南部以及鄱阳湖环湖区。按照《水和废水监测标准》中的检测指标及试验方法确定了九项水质指标,并根据河流规模和采样方法确定每条小河流的采样断面及采样点,然后对其进行采样并进行实验得出所需要的数据。分析数据判断农村小河流水质状况,然后对引起水质变化的原因作出解释。最后结合江西农村小河流特点以及引起水质变化的原因,对被污染的小河流提出合理的治理意见及建议。研究结果表明:在所选择的11条小河流中,从单项指标分析,水质状况不容乐观,特别是总氮、总磷含量偏高;但从综合水质指标分析,水质状况良好:其中有四条小河流的水质级别达到Ⅱ类水,占到全部河流的36.4%,有六条小河流的水质级别为Ⅲ类水,占所选取河流的54.5%,有一条河流的水质级别为Ⅳ类水,占全部河流的9.1%。
[Abstract]:At present, the research on river water quality is mainly focused on larger rivers, lakes and rivers with serious water pollution, but less on small rivers in rural areas. In this paper, 11 typical small rural rivers in Jiangxi Province are selected. The rivers involved include Fuhe River Basin, Jiujiang region, South Ganzhou and Poyang Lake region. According to the water and wastewater monitoring standards, nine water quality indexes were determined, and the sampling sections and sampling points of each small river were determined according to the river scale and sampling method. Then it is sampled and tested to get the needed data. Analyze the data to judge the water quality of rural small rivers, and then explain the causes of water quality change. Finally, according to the characteristics of small rivers in rural areas of Jiangxi Province and the causes of water quality change, reasonable suggestions and suggestions are put forward for the polluted small rivers. The results show that the water quality of 11 selected small rivers is not optimistic, especially the total nitrogen and total phosphorus content is high, but from the comprehensive water quality index analysis, the water quality is not optimistic, especially the total nitrogen and total phosphorus content is on the high side, but from the comprehensive water quality index analysis, The water quality is good: four small rivers have water quality grades of class 鈪，

本文编号：1912438