安义古村门口塘小微水体水质评价与分析

Evaluation and analysis of quality of water in pond near gate of Anyi ancient village

选取合适的水质评价方法能有效地反映水质状况。以2019年安义古村群门口塘的12个采样点数据为基础,对水样的COD、NH_(3)-N和TP浓度进行检测,通过传统、改进内梅罗指数法和模糊综合评价法对水塘的水质进行评价。结果表明京台村的水质最差,其次是罗田村,水质最好的村庄是水南村。基于权重系数分析,TP为主要污染指标,污染源来源于旅游污染、农业污染和生活污染。3种方法中,模糊综合评价法对水质的评价更加客观合理。

Selecting appropriate water quality evaluation methods can effectively reflect the water quality status.Based on the data collected at the 12 sampling points in pond near gate of Anyi ancient village in 2019,the concentrations of COD,NH_(3)-N and TP in the water samples were tested,and the water quality of the ponds was evaluated with the traditional and improved Nemero index method and fuzzy comprehensive evaluation method.The results show that the water quality at Jingtai village is the worst,followed by Luotian village,and the best is at Shuinan village.Based on the weight coefficient analysis,TP is the main pollution index,and the pollution sources are tourism pollution,agricultural pollution and domestic pollution.Among the three methods,the fuzzy comprehensive evaluation method is more objective and reasonable for water quality evaluation.