人民黄河2025，Vol.47Issue(11)：96-101,6.DOI:10.3969/j.issn.1000-1379.2025.11.015
引江济淮工程河南段清水河水质时空演变
Spatiotemporal Evolution of Water Quality in Qingshui River in Henan Section of Yangtze-to-Huaihe Water Diversion Project
摘要
Abstract
The Henan Section of the Yangtze-to-Huaihe Water Diversion Project serves as a critical hub for inter-basin water transfer,and the changes in its water quality play a significant role in regional water resources security and ecological balance.This study focused on the sur-face water and groundwater of the Qingshui River.Based on the monitoring data collected from October 2022 to June 2024(7 rounds of sur-face water sampling and 10 rounds of groundwater sampling)and employing the Mann-Kendall trend test(to quantify abrupt water quality changes)and Spearman correlation analysis(to reveal indicator interrelationships),it systematically analyzed the spatial-temporal evolution patterns of water quality.The results indicate that the surface water exhibits a high compliance rate for the permanganate index(100%).However,exceedances are observed for pH,fluoride and total phosphorus,among which,in January 2024,the concentration of NH3-N is in-creased sharply to 3.77 mg/L(exceeding the standard by 277%).The overall quality of groundwater is generally superior to that of surface water,although occasional exceedances of standards for total hardness and chloride were observed at the 46+100 sections.Fluctuations in groundwater pH show a significant association with fertilization periods.The changes in water quality are jointly influenced by the dilution effect of the project's water diversion,agricultural non-point source pollution(nitrogen and phosphorus inputs during fertilization periods)and seasonal hydrological fluctuations.关键词
水质时空演变/Mann-Kendall趋势检验/Spearman相关分析/引江济淮工程/清水河Key words
spatiotemporal evolution of water quality/Mann-Kendall trend test/Spearman correlation analysis/Yangtze-to-Huaihe Water Di-version Project/Qingshui River分类
建筑与水利引用本文复制引用
郭振莉,魏盼勤,王辉,刘小彦,张敏,侯佼建..引江济淮工程河南段清水河水质时空演变[J].人民黄河,2025,47(11):96-101,6.基金项目
引江济淮工程(河南段)工程科研服务项目(HNYJJH/JS/FWKY-20210001) （河南段）
黄河水利科学研究院科技发展基金资助项目(黄科发202409) （黄科发202409）
中央级公益性科研院所基本科研项目(HKY-JBYW-2024-19) （HKY-JBYW-2024-19）
