Groundwater potential zonation in the Siwalik of the Kankai River Basin, Eastern Nepal
For the globally degrading groundwater resources in terms of quantity and quality, proper assessment and management become crucial for their sustainable use. This study aims to delineate the groundwater potential zones using an integrated approach of geographic information system (GIS) and the Analy...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-06-01
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| Series: | Water Supply |
| Subjects: | |
| Online Access: | http://ws.iwaponline.com/content/23/6/2332 |
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| author | Champak Babu Silwal Mukesh Nepal Dinesh Pathak Balram Karkee Kiran Dahal Samir Acharya |
| author_facet | Champak Babu Silwal Mukesh Nepal Dinesh Pathak Balram Karkee Kiran Dahal Samir Acharya |
| author_sort | Champak Babu Silwal |
| collection | DOAJ |
| description | For the globally degrading groundwater resources in terms of quantity and quality, proper assessment and management become crucial for their sustainable use. This study aims to delineate the groundwater potential zones using an integrated approach of geographic information system (GIS) and the Analytical Hierarchy Process (AHP) in the Siwalik of the Kankai River Basin, Eastern Nepal. Different thematic layers like hydrogeomorphology, land use/land cover, lithology, slope, topographic wetness index, drainage density, normalized difference vegetation index, lineament density, and aspect were prepared and processed with suitable weights on Saaty's scale. The delineated groundwater potential zones in the study area were categorized as low, moderate, and high. The results showed that approximately 49.38% (130.85 km2) of the total study area has a low potential for groundwater. The moderate zone includes approximately 35.5% (94.07 km2) and the high potential zone includes only 15.05% (39.88 km2) of the area. The potential map was validated with a 70.6% prediction rate using the spatial distribution of the springs in the area. The analysis shows that hydrogeomorphology, LULC, and lithology have a significant control on the occurrences of groundwater. The study signifies the scarcity of groundwater resources, which needs a better management plan and strategies for sustainable use.
HIGHLIGHTS
The study deals with the delineation of groundwater potential zones using geospatial analysis along the Siwalik of the Kankai River Basin.;
The occurrence of groundwater along the Siwalik is mainly controlled by hydrogeomorphology, LULC, geology, and slope.;
About 50% of the area lies on the low potential zone for groundwater occurrence.; |
| first_indexed | 2024-03-13T00:20:18Z |
| format | Article |
| id | doaj.art-5c494243c9f0460e819177b85fd93eac |
| institution | Directory Open Access Journal |
| issn | 1606-9749 1607-0798 |
| language | English |
| last_indexed | 2024-03-13T00:20:18Z |
| publishDate | 2023-06-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Supply |
| spelling | doaj.art-5c494243c9f0460e819177b85fd93eac2023-07-11T16:32:12ZengIWA PublishingWater Supply1606-97491607-07982023-06-012362332234810.2166/ws.2023.137137Groundwater potential zonation in the Siwalik of the Kankai River Basin, Eastern NepalChampak Babu Silwal0Mukesh Nepal1Dinesh Pathak2Balram Karkee3Kiran Dahal4Samir Acharya5 Department of Geology, Trichandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal Central Department of Geology, Tribhuvan University, Kirtipur, Kathmandu, Nepal Central Department of Geology, Tribhuvan University, Kirtipur, Kathmandu, Nepal Central Department of Geology, Tribhuvan University, Kirtipur, Kathmandu, Nepal Central Department of Geology, Tribhuvan University, Kirtipur, Kathmandu, Nepal Central Department of Geology, Tribhuvan University, Kirtipur, Kathmandu, Nepal For the globally degrading groundwater resources in terms of quantity and quality, proper assessment and management become crucial for their sustainable use. This study aims to delineate the groundwater potential zones using an integrated approach of geographic information system (GIS) and the Analytical Hierarchy Process (AHP) in the Siwalik of the Kankai River Basin, Eastern Nepal. Different thematic layers like hydrogeomorphology, land use/land cover, lithology, slope, topographic wetness index, drainage density, normalized difference vegetation index, lineament density, and aspect were prepared and processed with suitable weights on Saaty's scale. The delineated groundwater potential zones in the study area were categorized as low, moderate, and high. The results showed that approximately 49.38% (130.85 km2) of the total study area has a low potential for groundwater. The moderate zone includes approximately 35.5% (94.07 km2) and the high potential zone includes only 15.05% (39.88 km2) of the area. The potential map was validated with a 70.6% prediction rate using the spatial distribution of the springs in the area. The analysis shows that hydrogeomorphology, LULC, and lithology have a significant control on the occurrences of groundwater. The study signifies the scarcity of groundwater resources, which needs a better management plan and strategies for sustainable use. HIGHLIGHTS The study deals with the delineation of groundwater potential zones using geospatial analysis along the Siwalik of the Kankai River Basin.; The occurrence of groundwater along the Siwalik is mainly controlled by hydrogeomorphology, LULC, geology, and slope.; About 50% of the area lies on the low potential zone for groundwater occurrence.;http://ws.iwaponline.com/content/23/6/2332ahpgeospatial analysisgisgroundwaterkankai river basinpotentiality |
| spellingShingle | Champak Babu Silwal Mukesh Nepal Dinesh Pathak Balram Karkee Kiran Dahal Samir Acharya Groundwater potential zonation in the Siwalik of the Kankai River Basin, Eastern Nepal Water Supply ahp geospatial analysis gis groundwater kankai river basin potentiality |
| title | Groundwater potential zonation in the Siwalik of the Kankai River Basin, Eastern Nepal |
| title_full | Groundwater potential zonation in the Siwalik of the Kankai River Basin, Eastern Nepal |
| title_fullStr | Groundwater potential zonation in the Siwalik of the Kankai River Basin, Eastern Nepal |
| title_full_unstemmed | Groundwater potential zonation in the Siwalik of the Kankai River Basin, Eastern Nepal |
| title_short | Groundwater potential zonation in the Siwalik of the Kankai River Basin, Eastern Nepal |
| title_sort | groundwater potential zonation in the siwalik of the kankai river basin eastern nepal |
| topic | ahp geospatial analysis gis groundwater kankai river basin potentiality |
| url | http://ws.iwaponline.com/content/23/6/2332 |
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