Spatial distribution of water quality in water bodies influenced by agricultural activities
Agriculture is a major contributor to non-point source pollution due to the intensive use of agrochemicals. This study examined the spatial distribution of pollutants from agricultural activities in the Sumani sub-catchment, West Sumatra, Indonesia, which drains into Lake Singkarak. Thirteen water q...
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| Format: | Article |
| Language: | English |
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University of Brawijaya
2025-07-01
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| Series: | Journal of Degraded and Mining Lands Management |
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| Online Access: | https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17118 |
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| author | Rahmah Dewi Yustika Sukarjo Sukarjo Triyani Dewi Yustiawati Yustiawati Cicik Oktasari Handayani Delvi Yanti Ai Dariah |
| author_facet | Rahmah Dewi Yustika Sukarjo Sukarjo Triyani Dewi Yustiawati Yustiawati Cicik Oktasari Handayani Delvi Yanti Ai Dariah |
| author_sort | Rahmah Dewi Yustika |
| collection | DOAJ |
| description | Agriculture is a major contributor to non-point source pollution due to the intensive use of agrochemicals. This study examined the spatial distribution of pollutants from agricultural activities in the Sumani sub-catchment, West Sumatra, Indonesia, which drains into Lake Singkarak. Thirteen water quality parameters were measured, including electrical conductivity (EC), total suspended solids (TSS), total dissolved solids (TDS), dissolved oxygen (DO), sulfate, nitrate, calcium, sodium, total phosphorus (TP), potassium, magnesium, chlorpyrifos, and mancozeb. Results showed significant variation in water quality across the sampling sites. Downstream areas had higher levels of TSS, TDS, and major ions, mainly due to agricultural and urban activities. The lowest TSS levels were recorded at a site within the lake, likely due to sediment settling. River water generally met drinking water standards; however, TP and DO concentrations in the lake exceeded regulatory limits, potentially influenced by floating net cage aquaculture. Principal Component Analysis identified three main sources of pollution: agricultural activities (34.87%), combined agricultural and urban influences (20.15%), and soil erosion (12.15%). These findings highlight the need for better erosion control, sustainable farming practices, and consistent water quality monitoring. Further research is crucial to understand the long-term effects of agriculture on water resources and to develop strategies that reduce environmental impacts. |
| format | Article |
| id | doaj-art-0f5f5d3eaeb5495ea3e1789ae199dbc6 |
| institution | OA Journals |
| issn | 2339-076X 2502-2458 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | University of Brawijaya |
| record_format | Article |
| series | Journal of Degraded and Mining Lands Management |
| spelling | doaj-art-0f5f5d3eaeb5495ea3e1789ae199dbc62025-08-20T02:38:25ZengUniversity of BrawijayaJournal of Degraded and Mining Lands Management2339-076X2502-24582025-07-011248367837810.15243/jdmlm.2025.124.836717120Spatial distribution of water quality in water bodies influenced by agricultural activitiesRahmah Dewi Yustika0https://orcid.org/0000-0002-6330-1658Sukarjo Sukarjo1https://orcid.org/0000-0003-0000-5488Triyani Dewi2https://orcid.org/0000-0003-3273-8109Yustiawati Yustiawati3https://orcid.org/0000-0001-6696-1398Cicik Oktasari Handayani4https://orcid.org/0000-0002-5454-6434Delvi Yanti5https://orcid.org/0000-0001-6216-9950Ai Dariah6Research Center for Estate Crops, National Research and Innovation Agency Republic of Indonesia, Bogor, IndonesiaResearch Center for Horticulture, National Research and Innovation Agency Republic of Indonesia, Bogor, IndonesiaResearch Center for Horticulture, National Research and Innovation Agency Republic of Indonesia, Bogor, IndonesiaResearch Center for Limnology and Water Resources, National Research and Innovation Agency Republic of Indonesia Bogor, Indonesia Research Center for Horticulture, National Research and Innovation Agency Republic of Indonesia, Bogor, IndonesiaDepartment of Agriculture and Biosystem Technology, Universitas Andalas, Limau Manis, Padang Indonesia Research Center for Estate Crops, National Research and Innovation Agency Republic of Indonesia, Bogor, IndonesiaAgriculture is a major contributor to non-point source pollution due to the intensive use of agrochemicals. This study examined the spatial distribution of pollutants from agricultural activities in the Sumani sub-catchment, West Sumatra, Indonesia, which drains into Lake Singkarak. Thirteen water quality parameters were measured, including electrical conductivity (EC), total suspended solids (TSS), total dissolved solids (TDS), dissolved oxygen (DO), sulfate, nitrate, calcium, sodium, total phosphorus (TP), potassium, magnesium, chlorpyrifos, and mancozeb. Results showed significant variation in water quality across the sampling sites. Downstream areas had higher levels of TSS, TDS, and major ions, mainly due to agricultural and urban activities. The lowest TSS levels were recorded at a site within the lake, likely due to sediment settling. River water generally met drinking water standards; however, TP and DO concentrations in the lake exceeded regulatory limits, potentially influenced by floating net cage aquaculture. Principal Component Analysis identified three main sources of pollution: agricultural activities (34.87%), combined agricultural and urban influences (20.15%), and soil erosion (12.15%). These findings highlight the need for better erosion control, sustainable farming practices, and consistent water quality monitoring. Further research is crucial to understand the long-term effects of agriculture on water resources and to develop strategies that reduce environmental impacts.https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17118agrochemicalslake singkarakphysicochemical parameterssumani riverwatershed |
| spellingShingle | Rahmah Dewi Yustika Sukarjo Sukarjo Triyani Dewi Yustiawati Yustiawati Cicik Oktasari Handayani Delvi Yanti Ai Dariah Spatial distribution of water quality in water bodies influenced by agricultural activities Journal of Degraded and Mining Lands Management agrochemicals lake singkarak physicochemical parameters sumani river watershed |
| title | Spatial distribution of water quality in water bodies influenced by agricultural activities |
| title_full | Spatial distribution of water quality in water bodies influenced by agricultural activities |
| title_fullStr | Spatial distribution of water quality in water bodies influenced by agricultural activities |
| title_full_unstemmed | Spatial distribution of water quality in water bodies influenced by agricultural activities |
| title_short | Spatial distribution of water quality in water bodies influenced by agricultural activities |
| title_sort | spatial distribution of water quality in water bodies influenced by agricultural activities |
| topic | agrochemicals lake singkarak physicochemical parameters sumani river watershed |
| url | https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17118 |
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