基于模糊综合指数法的嘉陵江汉中段水质评价

Water Quality Evaluation of Jialing River Hanzhong Section Based on Fuzzy Comprehensive Index Method

准确客观评价嘉陵江汉中段水质类别,可为地方政府防治水污染,合理科学利用嘉陵江水资源,“三条红线”考核提供科学依据。采用模糊综合指数法对2015年~2019年度嘉陵江汉中段四个断面水质监测数据进行水质评价。结果表明,嘉陵江汉中段四个断面水质近年来稳定且优,符合上级规定的水质目标。此方法较单因子评价法能更加客观、合理、准确地反映断面水质情况。

Accurate and objective evaluation of water quality in the middle section of the Jialing River can help local governments prevent and control water pollution.At the same time,it provides a scientific basis for the"three red lines"assessment for the rational and scientific use of Jialing River water resources.The fuzzy comprehensive index method was used to evaluate the water quality of the water quality monitoring data of the four sections of the Jialing River in the Hanzhong section from 2015 to 2019.The results show that the water quality of the four sections of the Jialing River in the Hanzhong section has been stable and excellent in recent years.Meet the water quality targets set by the superior.Compared with the single-factor evaluation method,this method can reflect the water quality of the section more objectively,reasonably and accurately.