四川环境2024，Vol.43Issue(3)：43-48,6.DOI:10.14034/j.cnki.schj.2024.03.006
渠江流域水质特征及模糊综合评价
Water Quality Characteristics and Fuzzy Comprehensive Evaluation on Qu River Basin
摘要
Abstract
To accurately investigate the current situation and temporal-spatial distribution characteristics of water quality in the Qu River Basin,30 sampling sections containing DO,CODMn,NH3-N and TP were selected in this paper.Based on the monthly water quality data from 2021 to 2022,a comprehensive evaluation of water quality in the Qu River Basin was carried out with the fuzzy comprehensive evaluation method.The results showed that CODMn and TP were the main pollutants in the 30 sampling sections.The results of fuzzy comprehensive evaluation showed:93.3％of the sampling sections in Qu River Basin meet the Classes Ⅰ-Ⅲ water quality standards from 2021 to 2022;the water quality in the Qu River Basin was generally distributed between Classes Ⅰ-Ⅳ;the sampling sections of Class Ⅰ water quality were basically located in the upstream of the Qu River Basin;the sampling sections of Class Ⅳ water quality were located in the middle and lower streams;and the proportion of ClassesⅠ-Ⅲ water quality in 30 sampling sections in 2022 was increased by 3.3％,compared with that of 2021.The proportion of section s with the same results of the improved fuzzy comprehensive evaluation,fuzzy comprehensive evaluation and single factor index evaluation was between 83.3％and 90.0％.The results also showed that the improved fuzzy comprehensive evaluation method reflected the water quality evaluation results in highly polluted areas better,and its results were more stable.关键词
渠江流域/水质评价/模糊综合评价Key words
Qu River Basin/water quality assessment/fuzzy comprehensive evaluation分类
资源环境引用本文复制引用
叶建桥,胡藴明,刘兵,杜紫诚,符东,陈春坛..渠江流域水质特征及模糊综合评价[J].四川环境,2024,43(3):43-48,6.基金项目
四川省生态环境保护科技计划项目(2023HB32) （2023HB32）
达州市科技计划项目(22ZDYF0057,20ZDYF0015) （22ZDYF0057,20ZDYF0015）
绿色催化四川省高校重点实验室开放课题(LYJ2201) （LYJ2201）
特色植物开发研究四川省高校重点实验室开放课题(TSZW2105) （TSZW2105）
四川文理学院专项项目(2022QD079). （2022QD079）
