Impact of land-use/cover change on water quality in the Mindu Dam drainage, Tanzania
Water pollution caused by land-use/cover change is one of the most pressing problems facing both industrialized and developing countries. Freshwater quality deterioration suggests the collective outcomes of natural courses and alterations in land-use/cover. Understanding the correlation among land-u...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-05-01
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| Series: | Water Practice and Technology |
| Subjects: | |
| Online Access: | http://wpt.iwaponline.com/content/18/5/1086 |
| _version_ | 1797810116327636992 |
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| author | Josephine John Gobry Sekela Simon Twisa Faustin Ngassapa Kessy F. Kilulya |
| author_facet | Josephine John Gobry Sekela Simon Twisa Faustin Ngassapa Kessy F. Kilulya |
| author_sort | Josephine John Gobry |
| collection | DOAJ |
| description | Water pollution caused by land-use/cover change is one of the most pressing problems facing both industrialized and developing countries. Freshwater quality deterioration suggests the collective outcomes of natural courses and alterations in land-use/cover. Understanding the correlation among land-use/cover and water quality parameters is vital for future water quality management. In this work, land-use/cover pattern and its effect on water quality in the Mindu Dam drainage area were analysed using Remote Sensing (RS) and Geographical Information System (GIS) techniques together with cellular automata–Markov model. The land-use/cover images between 1990 and 2020 were used to assess historical and spatial change of land-use/cover change, and projected for 2030 and 2040. We discovered that the dynamics of land use and land cover during the study period were significant. A strong correlation was revealed between changes in the land-use/cover and water quality parameters. Furthermore, a strong correlation exists between cultivated land and measured nutrient (nitrate and phosphate) and chlorophyll-a concentration. The natural vegetation buffer around Mindu Dam should be sufficient to prevent long-term water quality degradation from agricultural runoff in order to manage water quality sustainably. Therefore, land-use/cover management practices must be considered for sustainable resource management and water quality monitoring.
HIGHLIGHTS
Land use land cover change.;
Impact of land-use/cover change on water quality.;
Projection of land-use/cover change.;
Water quality sustainability.;
Effect of anthropogenic activities on land cover change.; |
| first_indexed | 2024-03-13T07:04:26Z |
| format | Article |
| id | doaj.art-663458e2045e48c4937b2dc3ece98916 |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-03-13T07:04:26Z |
| publishDate | 2023-05-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-663458e2045e48c4937b2dc3ece989162023-06-06T13:53:00ZengIWA PublishingWater Practice and Technology1751-231X2023-05-011851086109810.2166/wpt.2023.067067Impact of land-use/cover change on water quality in the Mindu Dam drainage, TanzaniaJosephine John Gobry0Sekela Simon Twisa1Faustin Ngassapa2Kessy F. Kilulya3 Department of Chemistry, College of Natural and Applied Science, University of Dar es Salaam, P. O. Box 35061, Dar es Salaam, Tanzania Water Institute, P.O. Box 35059, Dar es Salaam, Tanzania Department of Chemistry, College of Natural and Applied Science, University of Dar es Salaam, P. O. Box 35061, Dar es Salaam, Tanzania Department of Chemistry, College of Natural and Applied Science, University of Dar es Salaam, P. O. Box 35061, Dar es Salaam, Tanzania Water pollution caused by land-use/cover change is one of the most pressing problems facing both industrialized and developing countries. Freshwater quality deterioration suggests the collective outcomes of natural courses and alterations in land-use/cover. Understanding the correlation among land-use/cover and water quality parameters is vital for future water quality management. In this work, land-use/cover pattern and its effect on water quality in the Mindu Dam drainage area were analysed using Remote Sensing (RS) and Geographical Information System (GIS) techniques together with cellular automata–Markov model. The land-use/cover images between 1990 and 2020 were used to assess historical and spatial change of land-use/cover change, and projected for 2030 and 2040. We discovered that the dynamics of land use and land cover during the study period were significant. A strong correlation was revealed between changes in the land-use/cover and water quality parameters. Furthermore, a strong correlation exists between cultivated land and measured nutrient (nitrate and phosphate) and chlorophyll-a concentration. The natural vegetation buffer around Mindu Dam should be sufficient to prevent long-term water quality degradation from agricultural runoff in order to manage water quality sustainably. Therefore, land-use/cover management practices must be considered for sustainable resource management and water quality monitoring. HIGHLIGHTS Land use land cover change.; Impact of land-use/cover change on water quality.; Projection of land-use/cover change.; Water quality sustainability.; Effect of anthropogenic activities on land cover change.;http://wpt.iwaponline.com/content/18/5/1086geographical information systemland-use/covermindu damremote sensingwater quality |
| spellingShingle | Josephine John Gobry Sekela Simon Twisa Faustin Ngassapa Kessy F. Kilulya Impact of land-use/cover change on water quality in the Mindu Dam drainage, Tanzania Water Practice and Technology geographical information system land-use/cover mindu dam remote sensing water quality |
| title | Impact of land-use/cover change on water quality in the Mindu Dam drainage, Tanzania |
| title_full | Impact of land-use/cover change on water quality in the Mindu Dam drainage, Tanzania |
| title_fullStr | Impact of land-use/cover change on water quality in the Mindu Dam drainage, Tanzania |
| title_full_unstemmed | Impact of land-use/cover change on water quality in the Mindu Dam drainage, Tanzania |
| title_short | Impact of land-use/cover change on water quality in the Mindu Dam drainage, Tanzania |
| title_sort | impact of land use cover change on water quality in the mindu dam drainage tanzania |
| topic | geographical information system land-use/cover mindu dam remote sensing water quality |
| url | http://wpt.iwaponline.com/content/18/5/1086 |
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