Evolution Characteristics and Risk Assessment on Nonpoint Source Pollution in the Weihe River Basin, China
Temporal and spatial changes in non-point source pollution, driven by significant alterations in land use due to increased human activity, have considerably affected the quality of groundwater, surface water, and soil environments in the region. This study examines the Weihe River basin in greater d...
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MDPI AG
2024-12-01
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| Online Access: | https://www.mdpi.com/2072-4292/16/23/4605 |
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| author | Jiqiang Lyu Haihao Zhang Yuanjia Huang Chunyu Bai Yuhao Yang Junlin Shi Zhizhou Yang Yan Wang Zhaohui Zhou Pingping Luo Meng Jiao Aidi Huo |
| author_facet | Jiqiang Lyu Haihao Zhang Yuanjia Huang Chunyu Bai Yuhao Yang Junlin Shi Zhizhou Yang Yan Wang Zhaohui Zhou Pingping Luo Meng Jiao Aidi Huo |
| author_sort | Jiqiang Lyu |
| collection | DOAJ |
| description | Temporal and spatial changes in non-point source pollution, driven by significant alterations in land use due to increased human activity, have considerably affected the quality of groundwater, surface water, and soil environments in the region. This study examines the Weihe River basin in greater detail, an area heavily impacted by human activity. The study developed the River Section Potential Pollution Index (R-PPI) model using the Potential Non-Point Source Pollution Index (PNPI) model in order to investigate the dynamic changes in River Section Potential Pollution (R-PP) over a 31-year period and its associated risks, especially those related to land use and land cover change (LUCC). The predominant land uses in the Weihe River Basin are cropland, grassland, and forest, making up around 97% of the basin’s total area. The Weihe River Basin underwent a number of soil and water conservation initiatives between 1990 and 2020, which significantly decreased the potential pollution risk in the river segment. The research separated the R-PP risk values in the area into five different categories using a quantile classification technique. According to the data, there is a polarization of R-PP risk in the area, with downstream parts especially having an increased risk of pollution in river segments impacted by human activity. On the other hand, river segments in the middle and upper reaches of the basin showed a discernible decline in possible pollution risk throughout the study period. The Weihe River Basin’s rapid urbanization and land degradation are to blame for the current increase in R-PP risk. The substantial influence of LUCC on the dynamic variations in R-PP risk in the Weihe River Basin is highlighted by this study. Additionally, it offers crucial information for upcoming conservation initiatives and urban planning guidelines meant to enhance the area’s ecological well-being and environmental standards. |
| format | Article |
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| institution | OA Journals |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Remote Sensing |
| spelling | doaj-art-3ece8a20ebf040e79618d8e7d9d603402025-08-20T01:55:30ZengMDPI AGRemote Sensing2072-42922024-12-011623460510.3390/rs16234605Evolution Characteristics and Risk Assessment on Nonpoint Source Pollution in the Weihe River Basin, ChinaJiqiang Lyu0Haihao Zhang1Yuanjia Huang2Chunyu Bai3Yuhao Yang4Junlin Shi5Zhizhou Yang6Yan Wang7Zhaohui Zhou8Pingping Luo9Meng Jiao10Aidi Huo11School of Water and Environment, Chang’an University, Xi’an 710064, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaShanghai Investigation, Design & Research Institute Co., Ltd., Shanghai 200335, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaPower China Northwest Engineering Co., Ltd., Xi’an 710065, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710064, ChinaTemporal and spatial changes in non-point source pollution, driven by significant alterations in land use due to increased human activity, have considerably affected the quality of groundwater, surface water, and soil environments in the region. This study examines the Weihe River basin in greater detail, an area heavily impacted by human activity. The study developed the River Section Potential Pollution Index (R-PPI) model using the Potential Non-Point Source Pollution Index (PNPI) model in order to investigate the dynamic changes in River Section Potential Pollution (R-PP) over a 31-year period and its associated risks, especially those related to land use and land cover change (LUCC). The predominant land uses in the Weihe River Basin are cropland, grassland, and forest, making up around 97% of the basin’s total area. The Weihe River Basin underwent a number of soil and water conservation initiatives between 1990 and 2020, which significantly decreased the potential pollution risk in the river segment. The research separated the R-PP risk values in the area into five different categories using a quantile classification technique. According to the data, there is a polarization of R-PP risk in the area, with downstream parts especially having an increased risk of pollution in river segments impacted by human activity. On the other hand, river segments in the middle and upper reaches of the basin showed a discernible decline in possible pollution risk throughout the study period. The Weihe River Basin’s rapid urbanization and land degradation are to blame for the current increase in R-PP risk. The substantial influence of LUCC on the dynamic variations in R-PP risk in the Weihe River Basin is highlighted by this study. Additionally, it offers crucial information for upcoming conservation initiatives and urban planning guidelines meant to enhance the area’s ecological well-being and environmental standards.https://www.mdpi.com/2072-4292/16/23/4605LUCCnon-point pollutionWeihe River BasinR-PPI modelRiver Section Potential Pollution risk |
| spellingShingle | Jiqiang Lyu Haihao Zhang Yuanjia Huang Chunyu Bai Yuhao Yang Junlin Shi Zhizhou Yang Yan Wang Zhaohui Zhou Pingping Luo Meng Jiao Aidi Huo Evolution Characteristics and Risk Assessment on Nonpoint Source Pollution in the Weihe River Basin, China Remote Sensing LUCC non-point pollution Weihe River Basin R-PPI model River Section Potential Pollution risk |
| title | Evolution Characteristics and Risk Assessment on Nonpoint Source Pollution in the Weihe River Basin, China |
| title_full | Evolution Characteristics and Risk Assessment on Nonpoint Source Pollution in the Weihe River Basin, China |
| title_fullStr | Evolution Characteristics and Risk Assessment on Nonpoint Source Pollution in the Weihe River Basin, China |
| title_full_unstemmed | Evolution Characteristics and Risk Assessment on Nonpoint Source Pollution in the Weihe River Basin, China |
| title_short | Evolution Characteristics and Risk Assessment on Nonpoint Source Pollution in the Weihe River Basin, China |
| title_sort | evolution characteristics and risk assessment on nonpoint source pollution in the weihe river basin china |
| topic | LUCC non-point pollution Weihe River Basin R-PPI model River Section Potential Pollution risk |
| url | https://www.mdpi.com/2072-4292/16/23/4605 |
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