Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China
The dynamics of physicochemical properties within rivers are essential for understanding the health and functioning of aquatic ecosystems. This study investigated the spatial and seasonal variability of water quality in both water and sediment phases across rivers with different pollution sources in...
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| Format: | Article |
| Language: | en |
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Public Library of Science
2025
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| Online Access: | http://psasir.upm.edu.my/id/eprint/123723/1/123723.pdf http://psasir.upm.edu.my/id/eprint/123723/ https://doi.org/10.1371/journal.pone.0336027 |
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| author | Tong, Lingling Liu, Feng Md Yusoff, Fatimah Aris, Ahmad Zaharin Abdullah, Ahmad Fikri Khaw, Yam Sim Tan, Hui Teng Li, Dejun Karim, Murni |
| author_facet | Tong, Lingling Liu, Feng Md Yusoff, Fatimah Aris, Ahmad Zaharin Abdullah, Ahmad Fikri Khaw, Yam Sim Tan, Hui Teng Li, Dejun Karim, Murni |
| author_sort | Tong, Lingling |
| building | UPM Library |
| collection | Institutional Repository |
| content_provider | Universiti Putra Malaysia |
| content_source | UPM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | The dynamics of physicochemical properties within rivers are essential for understanding the health and functioning of aquatic ecosystems. This study investigated the spatial and seasonal variability of water quality in both water and sediment phases across rivers with different pollution sources in the Jinjing Basin: Tuojia River (TR), Tuojia River substream (TRS) (farmland), Guojia River (GR), Guojia River substream (GRS) (woodlands) and Jinjing River (JR) (residential). Samples were collected during wet and dry seasons and analyzed using multivariate statistical approaches. Farmland-dominated rivers (TR and TRS) exhibited the highest nutrient concentrations in both water and sediment phases, with elevated nutrients, soil organic matter (SOM), and dissolved organic carbon (DOC), driven by fertilizer runoff and organic inputs. In contrast, woodland rivers (GR and GRS) displayed the lowest nutrient levels, benefiting from dense vegetation and natural nutrient retention processes. Seasonal variability revealed higher nutrient concentrations in the water phase and increased levels of ammonium nitrogen (NH4+-N) and SOM in the sediment phase during the wet season. In the dry season, reduced flow enhanced photosynthesis, resulting in higher pH and dissolved oxygen levels in the water phase and elevated pH and DOC in sediment. Principal component analysis further confirmed that nutrient pollution is predominantly influenced by agricultural runoff during the wet season, while reduced runoff in the dry season allowed natural processes to dominate. The findings underscore the importance of managing nutrient loads in both water and sediment, especially in farmland areas to ensure the sustainability of water resource management in the Jinjing Basin. |
| format | Article |
| id | my.upm.eprints-123723 |
| institution | Universiti Putra Malaysia |
| language | en |
| publishDate | 2025 |
| publisher | Public Library of Science |
| record_format | eprints |
| spelling | my.upm.eprints-1237232026-03-17T08:32:01Z http://psasir.upm.edu.my/id/eprint/123723/ Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China Tong, Lingling Liu, Feng Md Yusoff, Fatimah Aris, Ahmad Zaharin Abdullah, Ahmad Fikri Khaw, Yam Sim Tan, Hui Teng Li, Dejun Karim, Murni The dynamics of physicochemical properties within rivers are essential for understanding the health and functioning of aquatic ecosystems. This study investigated the spatial and seasonal variability of water quality in both water and sediment phases across rivers with different pollution sources in the Jinjing Basin: Tuojia River (TR), Tuojia River substream (TRS) (farmland), Guojia River (GR), Guojia River substream (GRS) (woodlands) and Jinjing River (JR) (residential). Samples were collected during wet and dry seasons and analyzed using multivariate statistical approaches. Farmland-dominated rivers (TR and TRS) exhibited the highest nutrient concentrations in both water and sediment phases, with elevated nutrients, soil organic matter (SOM), and dissolved organic carbon (DOC), driven by fertilizer runoff and organic inputs. In contrast, woodland rivers (GR and GRS) displayed the lowest nutrient levels, benefiting from dense vegetation and natural nutrient retention processes. Seasonal variability revealed higher nutrient concentrations in the water phase and increased levels of ammonium nitrogen (NH4+-N) and SOM in the sediment phase during the wet season. In the dry season, reduced flow enhanced photosynthesis, resulting in higher pH and dissolved oxygen levels in the water phase and elevated pH and DOC in sediment. Principal component analysis further confirmed that nutrient pollution is predominantly influenced by agricultural runoff during the wet season, while reduced runoff in the dry season allowed natural processes to dominate. The findings underscore the importance of managing nutrient loads in both water and sediment, especially in farmland areas to ensure the sustainability of water resource management in the Jinjing Basin. Public Library of Science 2025-11-13 Article PeerReviewed text en cc_by_4 http://psasir.upm.edu.my/id/eprint/123723/1/123723.pdf Tong, Lingling and Liu, Feng and Md Yusoff, Fatimah and Aris, Ahmad Zaharin and Abdullah, Ahmad Fikri and Khaw, Yam Sim and Tan, Hui Teng and Li, Dejun and Karim, Murni (2025) Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China. PLOS ONE, 20 (11). art. no. e0336027. pp. 1-25. ISSN 1932-6203 https://doi.org/10.1371/journal.pone.0336027 Multidisciplinary 10.1371/journal.pone.0336027 |
| spellingShingle | Multidisciplinary Tong, Lingling Liu, Feng Md Yusoff, Fatimah Aris, Ahmad Zaharin Abdullah, Ahmad Fikri Khaw, Yam Sim Tan, Hui Teng Li, Dejun Karim, Murni Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China |
| title | Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China |
| title_full | Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China |
| title_fullStr | Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China |
| title_full_unstemmed | Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China |
| title_short | Spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the Jinjing watershed, China |
| title_sort | spatiotemporal dynamics of water and sediment quality under multi-source pollution: a case study in the jinjing watershed, china |
| topic | Multidisciplinary |
| url | http://psasir.upm.edu.my/id/eprint/123723/1/123723.pdf http://psasir.upm.edu.my/id/eprint/123723/ https://doi.org/10.1371/journal.pone.0336027 |
| url_provider | http://psasir.upm.edu.my/ |