Construction and Application of a Water Quality Risk Sensitive Area Identification System in the Wudongde Reservoir

Numerous water quality risks exist during the initial water storage stage in reservoirs; however, little water quality data is available for this stage. Taking the Wudongde Reservoir as an example, we proposed a water quality risk sensitive area identification system for the initial impoundment stag...

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Main Authors: Wei Su, Shiyan Wang, Chang Liu, Xiaobo Liu, Kaiqi Chen, Hao Fan, Liang Wang, Zhi Jiang, Budong Li, Baoyue Hu
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/14/6/962
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author Wei Su
Shiyan Wang
Chang Liu
Xiaobo Liu
Kaiqi Chen
Hao Fan
Liang Wang
Zhi Jiang
Budong Li
Baoyue Hu
author_facet Wei Su
Shiyan Wang
Chang Liu
Xiaobo Liu
Kaiqi Chen
Hao Fan
Liang Wang
Zhi Jiang
Budong Li
Baoyue Hu
author_sort Wei Su
collection DOAJ
description Numerous water quality risks exist during the initial water storage stage in reservoirs; however, little water quality data is available for this stage. Taking the Wudongde Reservoir as an example, we proposed a water quality risk sensitive area identification system for the initial impoundment stage comprising three modules: water quality assessment, water quality similarity clustering analysis, and sensitive area identification. Temporal and spatial variation in the water quality of the whole reservoir was analyzed, combined with a comprehensive evaluation using the Canadian Council of Ministers of the Environment Water Quality Index. A water quality similar clustering module was used to form similar clusters for monitoring sections in the reservoir area. The water quality risk sensitive areas were then identified and verified through a prototype test. The reservoir water quality was primarily excellent to good, although that of the Madian and Longchuan Rivers was poor. Through cluster analysis, the Madian River and tributaries of the Longchuan River were identified as sensitive areas, and the causes of water quality risk were analyzed. Based on these findings, we suggested focus areas for water environmental protection measures, providing a basis for the protection and restoration of the reservoir water environment.
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spelling doaj.art-1fd23243566a42b98e98e36076e82bf72023-11-30T22:49:52ZengMDPI AGWater2073-44412022-03-0114696210.3390/w14060962Construction and Application of a Water Quality Risk Sensitive Area Identification System in the Wudongde ReservoirWei Su0Shiyan Wang1Chang Liu2Xiaobo Liu3Kaiqi Chen4Hao Fan5Liang Wang6Zhi Jiang7Budong Li8Baoyue Hu9State Key Laboratory of Simulation and Regulation of River Basin Water Cycle, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of River Basin Water Cycle, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of River Basin Water Cycle, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of River Basin Water Cycle, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaAppraisal Center for Environment and Engineering, Ministry of Environmental Protection, Beijing 100012, ChinaChang Jiang Water Resources Protection Institute, Wuhan 430051, ChinaState Key Laboratory of Simulation and Regulation of River Basin Water Cycle, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of River Basin Water Cycle, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Simulation and Regulation of River Basin Water Cycle, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaDepartment of Hydraulic Engineering, College of Bohai, Hebei Agricultural University, Huanghua 061100, ChinaNumerous water quality risks exist during the initial water storage stage in reservoirs; however, little water quality data is available for this stage. Taking the Wudongde Reservoir as an example, we proposed a water quality risk sensitive area identification system for the initial impoundment stage comprising three modules: water quality assessment, water quality similarity clustering analysis, and sensitive area identification. Temporal and spatial variation in the water quality of the whole reservoir was analyzed, combined with a comprehensive evaluation using the Canadian Council of Ministers of the Environment Water Quality Index. A water quality similar clustering module was used to form similar clusters for monitoring sections in the reservoir area. The water quality risk sensitive areas were then identified and verified through a prototype test. The reservoir water quality was primarily excellent to good, although that of the Madian and Longchuan Rivers was poor. Through cluster analysis, the Madian River and tributaries of the Longchuan River were identified as sensitive areas, and the causes of water quality risk were analyzed. Based on these findings, we suggested focus areas for water environmental protection measures, providing a basis for the protection and restoration of the reservoir water environment.https://www.mdpi.com/2073-4441/14/6/962water quality riskidentification systeminitial storagelarge reservoirWudongde Reservoir
spellingShingle Wei Su
Shiyan Wang
Chang Liu
Xiaobo Liu
Kaiqi Chen
Hao Fan
Liang Wang
Zhi Jiang
Budong Li
Baoyue Hu
Construction and Application of a Water Quality Risk Sensitive Area Identification System in the Wudongde Reservoir
Water
water quality risk
identification system
initial storage
large reservoir
Wudongde Reservoir
title Construction and Application of a Water Quality Risk Sensitive Area Identification System in the Wudongde Reservoir
title_full Construction and Application of a Water Quality Risk Sensitive Area Identification System in the Wudongde Reservoir
title_fullStr Construction and Application of a Water Quality Risk Sensitive Area Identification System in the Wudongde Reservoir
title_full_unstemmed Construction and Application of a Water Quality Risk Sensitive Area Identification System in the Wudongde Reservoir
title_short Construction and Application of a Water Quality Risk Sensitive Area Identification System in the Wudongde Reservoir
title_sort construction and application of a water quality risk sensitive area identification system in the wudongde reservoir
topic water quality risk
identification system
initial storage
large reservoir
Wudongde Reservoir
url https://www.mdpi.com/2073-4441/14/6/962
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