Coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the Tana sub-basin, Ethiopia
Long-term and sustainable agricultural practices can be achieved through monitoring and evaluation of groundwater quality for irrigation operations. However, less attention was given to irrigation water quality in the Tana sub-basin, Ethiopia. The present study is aimed to assess the seasonal and sp...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-04-01
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| Series: | Water Practice and Technology |
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| Online Access: | http://wpt.iwaponline.com/content/18/4/884 |
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| author | Kibru Gedam Berhanu Samuel Dagalo Hatiye Tarun Kumar Lohani |
| author_facet | Kibru Gedam Berhanu Samuel Dagalo Hatiye Tarun Kumar Lohani |
| author_sort | Kibru Gedam Berhanu |
| collection | DOAJ |
| description | Long-term and sustainable agricultural practices can be achieved through monitoring and evaluation of groundwater quality for irrigation operations. However, less attention was given to irrigation water quality in the Tana sub-basin, Ethiopia. The present study is aimed to assess the seasonal and spatial groundwater suitability for irrigation uses. The groundwater quality parameters measured in 40 samples in each dry and wet season were the pH, electrical conductivity (EC), Na+, Ca2+, Mg2+, K+, Fe2+, HCO3-, CO32-, Cl−, and NO3-. The groundwater suitability for irrigation was assessed using the irrigation water quality index (IWQI) and support vector machine (SVM). The results showed high and medium irrigation suitability classes in the dry and wet seasons. The proportion of groundwater samples in the medium irrigation suitability class in the dry and wet seasons, respectively, was 72.5 and 67.5%. The groundwater in the wet season is comparatively more suitable than that in the dry season, which is attributed to the leaching of accumulated salts during the wet season. To avoid a salinity threat, vigilance should be exercised when using groundwater during the dry seasons. The groundwater quality map developed here for irrigation may aid in locating better-quality groundwater sources for irrigation.
HIGHLIGHT
At the headwaters of the Blue Nile, in the Lake Tana sub-basin, a coupled strategy for evaluating groundwater quality for irrigation has been researched during the dry and wet seasons. This study concludes that the rainy season's water quality is superior to the dry, suggesting that using GW in the dry season should be done with prudence.;
The groundwater in the wet season occurs with better quality than that in the dry season since there is water quality improvement due to leaching in the wet season.; |
| first_indexed | 2024-04-09T13:35:42Z |
| format | Article |
| id | doaj.art-08247587af054bb0a8e05f1a10b83807 |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-04-09T13:35:42Z |
| publishDate | 2023-04-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-08247587af054bb0a8e05f1a10b838072023-05-09T09:58:36ZengIWA PublishingWater Practice and Technology1751-231X2023-04-0118488490010.2166/wpt.2023.055055Coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the Tana sub-basin, EthiopiaKibru Gedam Berhanu0Samuel Dagalo Hatiye1Tarun Kumar Lohani2 Faculty of Water Resources and Irrigation Engineering, Arba Minch Water Technology Institute, Arba Minch University, Arba Minch, Ethiopia Faculty of Water Resources and Irrigation Engineering, Arba Minch Water Technology Institute, Water Resources Research Center, Arba Minch University, Arba Minch, Ethiopia Faculty of Hydraulic and Water Resources Engineering, Arba Minch Water Technology Institute, Arba Minch University, Arba Minch, Ethiopia Long-term and sustainable agricultural practices can be achieved through monitoring and evaluation of groundwater quality for irrigation operations. However, less attention was given to irrigation water quality in the Tana sub-basin, Ethiopia. The present study is aimed to assess the seasonal and spatial groundwater suitability for irrigation uses. The groundwater quality parameters measured in 40 samples in each dry and wet season were the pH, electrical conductivity (EC), Na+, Ca2+, Mg2+, K+, Fe2+, HCO3-, CO32-, Cl−, and NO3-. The groundwater suitability for irrigation was assessed using the irrigation water quality index (IWQI) and support vector machine (SVM). The results showed high and medium irrigation suitability classes in the dry and wet seasons. The proportion of groundwater samples in the medium irrigation suitability class in the dry and wet seasons, respectively, was 72.5 and 67.5%. The groundwater in the wet season is comparatively more suitable than that in the dry season, which is attributed to the leaching of accumulated salts during the wet season. To avoid a salinity threat, vigilance should be exercised when using groundwater during the dry seasons. The groundwater quality map developed here for irrigation may aid in locating better-quality groundwater sources for irrigation. HIGHLIGHT At the headwaters of the Blue Nile, in the Lake Tana sub-basin, a coupled strategy for evaluating groundwater quality for irrigation has been researched during the dry and wet seasons. This study concludes that the rainy season's water quality is superior to the dry, suggesting that using GW in the dry season should be done with prudence.; The groundwater in the wet season occurs with better quality than that in the dry season since there is water quality improvement due to leaching in the wet season.;http://wpt.iwaponline.com/content/18/4/884groundwater qualityirrigation hazardsirrigation suitabilityiwqisvm |
| spellingShingle | Kibru Gedam Berhanu Samuel Dagalo Hatiye Tarun Kumar Lohani Coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the Tana sub-basin, Ethiopia Water Practice and Technology groundwater quality irrigation hazards irrigation suitability iwqi svm |
| title | Coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the Tana sub-basin, Ethiopia |
| title_full | Coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the Tana sub-basin, Ethiopia |
| title_fullStr | Coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the Tana sub-basin, Ethiopia |
| title_full_unstemmed | Coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the Tana sub-basin, Ethiopia |
| title_short | Coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the Tana sub-basin, Ethiopia |
| title_sort | coupling support vector machine and the irrigation water quality index to assess groundwater quality suitability for irrigation practices in the tana sub basin ethiopia |
| topic | groundwater quality irrigation hazards irrigation suitability iwqi svm |
| url | http://wpt.iwaponline.com/content/18/4/884 |
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