Selection of priority watershed for water environment management.

IF 2.5 4区 环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL
Jiyeon Choi, Young Mee Lee, Tae-Woo Kang, Don-Woo Ha, Seong-Yun Hwang, Youngjea Lee, Won-Seok Lee
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引用次数: 0

Abstract

As part of the National Water Management Basic Plan, this study conducted research to identify priority management watersheds in the Yeongsan River basin to respond to changes in water environmental conditions and improve water quality. Analysis of water quality over the past decade revealed that points located in the middle and lower of the Yeongsan River exceeded the target water quality standards. As based on the results, pollution sources and loads indicated that the W-1 watershed, classified as urban areas, exhibited high levels in residential, industrial, and urban landuse characteristics, whereas the W-6 watershed, classified as rural areas, showed high levels in livestock farming, aquaculture, and agricultural landuse (wet and dry filed) categories. To understand the impact of point source (PS) and non-point source (NPS) pollution within the watershed, load duration curve (LDC) analysis was conducted, indicating that downstream segments of all flow ranges exceeded the target water quality standards, necessitating management of both PS and NPS. Multivariate log-linear analysis also confirmed the influence of PS and NPS, suggesting that watershed management should concurrently address both types of pollution. Based on the results, priority management watershed rankings were derived through the calculation of standard and integrated indicators, with the analysis indicating the following order: W-1 > W-6 > W-3 > W-4 > W-2 > W-5 > W-7 > W-8. PRACTITIONER POINTS: Priority management watersheds that urgently need water environment management can be identified. The priority management watershed rankings were derived through the calculation of integrated indicators data on BOD, TP concentration, and loads. Serve as a guide for future diagnostic assessments of pollution sources and the development of effective management strategies. Anticipated to significantly contribute to the establishment of robust water quality management practices in the basin.

为水环境管理选择优先流域。
作为《国家水资源管理基本计划》的一部分,本研究旨在确定灵山江流域的重点管理流域,以应对水环境条件的变化并改善水质。对过去十年水质的分析表明,位于灵山江中下游的水质点超过了目标水质标准。根据结果,污染源和污染负荷表明,被划分为城市地区的 W-1 流域在居住、工业和城市土地利用特征方面表现出较高水平,而被划分为农村地区的 W-6 流域在畜牧业、水产养殖业和农业土地利用(干湿耕地)类别方面表现出较高水平。为了解流域内点源(PS)和非点源(NPS)污染的影响,进行了负荷持续时间曲线(LDC)分析,结果表明所有流量范围的下游河段都超过了目标水质标准,因此有必要对点源和非点源进行管理。多变量对数线性分析也证实了 PS 和 NPS 的影响,表明流域管理应同时解决这两种类型的污染。根据分析结果,通过计算标准指标和综合指标,得出了优先管理流域的排名,分析表明排名顺序如下:W-1 > W-6 > W-3 > W-4 > W-2 > W-5 > W-7 > W-8。实践点:可以确定迫切需要进行水环境管理的优先管理流域。优先管理流域排名是通过计算 BOD、TP 浓度和负荷等综合指标数据得出的。为今后诊断评估污染源和制定有效的管理策略提供指导。预计将大大有助于在流域内建立健全的水质管理措施。
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来源期刊
Water Environment Research
Water Environment Research 环境科学-工程:环境
CiteScore
6.30
自引率
0.00%
发文量
138
审稿时长
11 months
期刊介绍: Published since 1928, Water Environment Research (WER) is an international multidisciplinary water resource management journal for the dissemination of fundamental and applied research in all scientific and technical areas related to water quality and resource recovery. WER''s goal is to foster communication and interdisciplinary research between water sciences and related fields such as environmental toxicology, agriculture, public and occupational health, microbiology, and ecology. In addition to original research articles, short communications, case studies, reviews, and perspectives are encouraged.
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