Spatio-seasonal variation of water quality influenced by land use and land cover in Lake Muhazi
Abstract Understanding the influence of land use/land cover (LULC) on water quality is pertinent to sustainable water management. This study aimed at assessing the spatio-seasonal variation of water quality in relation to land use types in Lake Muhazi, Rwanda. The National Sanitation Foundation Wate...
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doaj-c5d1983c1bbd4e849e90c8c44a2e0e342021-09-05T11:33:58ZengNature Publishing GroupScientific Reports2045-23222021-08-0111111610.1038/s41598-021-96633-9Spatio-seasonal variation of water quality influenced by land use and land cover in Lake MuhaziEdovia Dufatanye Umwali0Alishir Kurban1Alain Isabwe2Richard Mind’je3Hossein Azadi4Zengkun Guo5Madeleine Udahogora6Anathalie Nyirarwasa7Jeanine Umuhoza8Vincent Nzabarinda9Aboubakar Gasirabo10Gulnur Sabirhazi11State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesKey Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of SciencesAbstract Understanding the influence of land use/land cover (LULC) on water quality is pertinent to sustainable water management. This study aimed at assessing the spatio-seasonal variation of water quality in relation to land use types in Lake Muhazi, Rwanda. The National Sanitation Foundation Water Quality Index (NSF-WQI) was used to evaluate the anthropogenically-induced water quality changes. In addition to Principal Components Analysis (PCA), a Cluster Analysis (CA) was applied on 12-clustered sampling sites and the obtained NSF-WQI. Lastly, the Partial Least Squares Path Modelling (PLS-PM) was used to estimate the nexus between LULC, water quality parameters, and the obtained NSF-WQI. The results revealed a poor water quality status at the Mugorore and Butimba sites in the rainy season, then at Mugorore and Bwimiyange sites in the dry season. Furthermore, PCA displayed a sample dispersion based on seasonality while NSF-WQI’s CA hierarchy grouped the samples corresponding to LULC types. Finally, the PLS-PM returned a strong positive correlation (+ 0.831) between LULCs and water quality parameters in the rainy season but a negative correlation coefficient (− 0.542) in the dry season, with great influences of cropland on the water quality parameters. Overall, this study concludes that the lake is seasonally influenced by anthropogenic activities, suggesting sustainable land-use management decisions, such as the establishment and safeguarding protection belts in the lake vicinity.https://doi.org/10.1038/s41598-021-96633-9 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Edovia Dufatanye Umwali Alishir Kurban Alain Isabwe Richard Mind’je Hossein Azadi Zengkun Guo Madeleine Udahogora Anathalie Nyirarwasa Jeanine Umuhoza Vincent Nzabarinda Aboubakar Gasirabo Gulnur Sabirhazi |
spellingShingle |
Edovia Dufatanye Umwali Alishir Kurban Alain Isabwe Richard Mind’je Hossein Azadi Zengkun Guo Madeleine Udahogora Anathalie Nyirarwasa Jeanine Umuhoza Vincent Nzabarinda Aboubakar Gasirabo Gulnur Sabirhazi Spatio-seasonal variation of water quality influenced by land use and land cover in Lake Muhazi Scientific Reports |
author_facet |
Edovia Dufatanye Umwali Alishir Kurban Alain Isabwe Richard Mind’je Hossein Azadi Zengkun Guo Madeleine Udahogora Anathalie Nyirarwasa Jeanine Umuhoza Vincent Nzabarinda Aboubakar Gasirabo Gulnur Sabirhazi |
author_sort |
Edovia Dufatanye Umwali |
title |
Spatio-seasonal variation of water quality influenced by land use and land cover in Lake Muhazi |
title_short |
Spatio-seasonal variation of water quality influenced by land use and land cover in Lake Muhazi |
title_full |
Spatio-seasonal variation of water quality influenced by land use and land cover in Lake Muhazi |
title_fullStr |
Spatio-seasonal variation of water quality influenced by land use and land cover in Lake Muhazi |
title_full_unstemmed |
Spatio-seasonal variation of water quality influenced by land use and land cover in Lake Muhazi |
title_sort |
spatio-seasonal variation of water quality influenced by land use and land cover in lake muhazi |
publisher |
Nature Publishing Group |
series |
Scientific Reports |
issn |
2045-2322 |
publishDate |
2021-08-01 |
description |
Abstract Understanding the influence of land use/land cover (LULC) on water quality is pertinent to sustainable water management. This study aimed at assessing the spatio-seasonal variation of water quality in relation to land use types in Lake Muhazi, Rwanda. The National Sanitation Foundation Water Quality Index (NSF-WQI) was used to evaluate the anthropogenically-induced water quality changes. In addition to Principal Components Analysis (PCA), a Cluster Analysis (CA) was applied on 12-clustered sampling sites and the obtained NSF-WQI. Lastly, the Partial Least Squares Path Modelling (PLS-PM) was used to estimate the nexus between LULC, water quality parameters, and the obtained NSF-WQI. The results revealed a poor water quality status at the Mugorore and Butimba sites in the rainy season, then at Mugorore and Bwimiyange sites in the dry season. Furthermore, PCA displayed a sample dispersion based on seasonality while NSF-WQI’s CA hierarchy grouped the samples corresponding to LULC types. Finally, the PLS-PM returned a strong positive correlation (+ 0.831) between LULCs and water quality parameters in the rainy season but a negative correlation coefficient (− 0.542) in the dry season, with great influences of cropland on the water quality parameters. Overall, this study concludes that the lake is seasonally influenced by anthropogenic activities, suggesting sustainable land-use management decisions, such as the establishment and safeguarding protection belts in the lake vicinity. |
url |
https://doi.org/10.1038/s41598-021-96633-9 |
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