摘要
根据2019-2023年龙溪河水质自动监测数据,对龙溪河水质时空变化情况进行分析。结果表明:龙溪河入境水质对泸州段水质影响较大;结合Spearman秩相关系数分析发现,龙溪河入境断面的总磷和高锰酸盐指数整体呈升高趋势,而在泸州段均出现不同程度改善。龙溪河沿岸农业源、生活源较多,加之枯水期流量小、流速慢,导致龙溪河枯水期出现了富营养化现象,致使污染物富集和水质恶化。基于此,从强化区域联防联控、水域岸线管理保护、实施污染防治措施三方面提出了综合提升龙溪河水质的建议。
This paper analyzes the spatiotemporal changes in the water quality of the Longxi River based on the automatic monitoring data from 2019 to 2023.The results indicate that the incoming water quality of the Longxi River has a significant impact on the water quality of the Luzhou section;Combining Spearman rank correlation coefficient analysis,it was found that the total phosphorus and permanganate index of the Longxi River inlet section showed an overall upward trend,while there were varying degrees of improvement in the Luzhou section.There are many agricultural and domestic sources along the Longxi River,coupled with low flow and slow flow during the dry season,which leads to eutrophication in the Longxi River during the dry season,resulting in the accumulation of pollutants and deterioration of water quality.It is recommended to comprehensively improve the water quality of the Longxi River from three aspects:strengthening regional joint prevention and control,managing and protecting water bodies and shorelines,and implementing pollution prevention and control measures.
作者
薛京洲
龙小兰
赵倩
何仁江
Xue Jingzhou;Long Xiaolan;Zhao Qian;He Renjiang(Luzhou Ecological and Environmental Monitoring Central Station of Sichuan Province,Luzhou 646000,Sichuan,China;Environmental Health Effects and Risk Assessment Key Laboratory of Luzhou Luzhou 646000,Sichuan,China;School of Public Health of Southwest Medical University,Luzhou 646000,Sichuan,China)
出处
《绿色科技》
2024年第6期117-122,共6页
Journal of Green Science and Technology
基金
泸州市人民政府-西南医科大学科技战略合作项目(编号:2023LZXNYDJ050)
西南医科大学校级科研项目(编号:2021ZKQN004)。
关键词
龙溪河
地表水水质
自动监测
污染成因分析
Longxi river
surface water quality
automatic monitoring
analysis of pollution causes
