Identifying suitable sites for rainwater harvesting using GIS & Multi – Criteria Decision Making techniques in Badghis Province of Afghanistan
In Afghanistan, about 1/3 (12.5 mln) of the total population have no access to stable water supplies such as groundwater extraction, stream flow diversion, and reservoir storage. In areas with limited water sources, rainwater harvesting (RWH) can improve the availability of potable water. Due to RWH...
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| Format: | Article |
| Language: | English |
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Kazakh German University
2022-10-01
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| Series: | Central Asian Journal of Water Research |
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| Online Access: | https://water-ca.org/article/identifying-suitable-sites-for-rainwater-harvesting-using-gis-multi-criteria-decision-making-techniques-in-badghis-province-of-afghanistan |
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| author | Juma Khan Tahera M. Najim Nasimib M. Nasim Nasimic Scott E. Boyced |
| author_facet | Juma Khan Tahera M. Najim Nasimib M. Nasim Nasimic Scott E. Boyced |
| author_sort | Juma Khan Tahera |
| collection | DOAJ |
| description | In Afghanistan, about 1/3 (12.5 mln) of the total population have no access to stable water supplies such as groundwater extraction, stream flow diversion, and reservoir storage. In areas with limited water sources, rainwater harvesting (RWH) can improve the availability of potable water. Due to RWH flexibility and applying different criteria, it can be used in various settings, making RWH a viable option for local communities. Within this study, suitable RWH sites were identified based on modern technological approaches (GIS and Multi-Criteria Decision Making (MCDM)) considering different biophysical criteria selected according to the requirements of the target area environment. The Analytical Hierarchy Process (AHP), Weighted Linear Combination (WLC) Model and hydrology tools were used as MCDM and GIS-based decisions, respectively. The proposed methodology was implemented in the target area of 11,772 km2. The obtained land suitability map was divided into five (5) RWH zones: highly suitable (7.84% of the total area), suitable (21.85%), moderately suitable (31.15%), marginally suitable (27.85%), and not suitable (11.31%). The research results show that highly suitable and suitable sites (3,495.47 km2) are located in mountainous zones with good elevation potential, proper valley shapes, and large catchment areas. RWH practices in these areas can be considered as renewable and sustainable alternatives to water demand saturation. In addition to being a solution in terms of providing water to water-scarce areas, RWH installations represent a good climate change response and water resource management means.
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| first_indexed | 2024-04-13T18:53:03Z |
| format | Article |
| id | doaj.art-bb865afc0de64fdcbe1156edcd0acb1f |
| institution | Directory Open Access Journal |
| issn | 2522-9060 |
| language | English |
| last_indexed | 2024-04-13T18:53:03Z |
| publishDate | 2022-10-01 |
| publisher | Kazakh German University |
| record_format | Article |
| series | Central Asian Journal of Water Research |
| spelling | doaj.art-bb865afc0de64fdcbe1156edcd0acb1f2022-12-22T02:34:21ZengKazakh German UniversityCentral Asian Journal of Water Research2522-90602022-10-0182466910.29258/CAJWR/2022-R1.v8-2/46-69.engIdentifying suitable sites for rainwater harvesting using GIS & Multi – Criteria Decision Making techniques in Badghis Province of AfghanistanJuma Khan Tahera0M. Najim Nasimib 1M. Nasim Nasimic2Scott E. Boyced3Water Resource and Environmental Engineering Faculty, Kabul Polytechnic University, Karta-e- Mamorin, 5th District, Kabul, AfghanistanWater Supply and Environmental Engineering Department, Kabul Polytechnic University, Karta-e- Mamorin, 5th District, Kabul, AfghanistanHydraulic Structures Engineering Department, Kabul Polytechnic University, Karta-e-Mamorin, 5th District, Kabul, AfghanistanU.S. Geological Survey, California Water Science Center, 4165 Spruance Rd., Suite 200, San Diego, CA 92101-0812, USAIn Afghanistan, about 1/3 (12.5 mln) of the total population have no access to stable water supplies such as groundwater extraction, stream flow diversion, and reservoir storage. In areas with limited water sources, rainwater harvesting (RWH) can improve the availability of potable water. Due to RWH flexibility and applying different criteria, it can be used in various settings, making RWH a viable option for local communities. Within this study, suitable RWH sites were identified based on modern technological approaches (GIS and Multi-Criteria Decision Making (MCDM)) considering different biophysical criteria selected according to the requirements of the target area environment. The Analytical Hierarchy Process (AHP), Weighted Linear Combination (WLC) Model and hydrology tools were used as MCDM and GIS-based decisions, respectively. The proposed methodology was implemented in the target area of 11,772 km2. The obtained land suitability map was divided into five (5) RWH zones: highly suitable (7.84% of the total area), suitable (21.85%), moderately suitable (31.15%), marginally suitable (27.85%), and not suitable (11.31%). The research results show that highly suitable and suitable sites (3,495.47 km2) are located in mountainous zones with good elevation potential, proper valley shapes, and large catchment areas. RWH practices in these areas can be considered as renewable and sustainable alternatives to water demand saturation. In addition to being a solution in terms of providing water to water-scarce areas, RWH installations represent a good climate change response and water resource management means. https://water-ca.org/article/identifying-suitable-sites-for-rainwater-harvesting-using-gis-multi-criteria-decision-making-techniques-in-badghis-province-of-afghanistanafghanistangismcdmrainwater harvestingsuitable site |
| spellingShingle | Juma Khan Tahera M. Najim Nasimib M. Nasim Nasimic Scott E. Boyced Identifying suitable sites for rainwater harvesting using GIS & Multi – Criteria Decision Making techniques in Badghis Province of Afghanistan Central Asian Journal of Water Research afghanistan gis mcdm rainwater harvesting suitable site |
| title | Identifying suitable sites for rainwater harvesting using GIS & Multi – Criteria Decision Making techniques in Badghis Province of Afghanistan |
| title_full | Identifying suitable sites for rainwater harvesting using GIS & Multi – Criteria Decision Making techniques in Badghis Province of Afghanistan |
| title_fullStr | Identifying suitable sites for rainwater harvesting using GIS & Multi – Criteria Decision Making techniques in Badghis Province of Afghanistan |
| title_full_unstemmed | Identifying suitable sites for rainwater harvesting using GIS & Multi – Criteria Decision Making techniques in Badghis Province of Afghanistan |
| title_short | Identifying suitable sites for rainwater harvesting using GIS & Multi – Criteria Decision Making techniques in Badghis Province of Afghanistan |
| title_sort | identifying suitable sites for rainwater harvesting using gis multi criteria decision making techniques in badghis province of afghanistan |
| topic | afghanistan gis mcdm rainwater harvesting suitable site |
| url | https://water-ca.org/article/identifying-suitable-sites-for-rainwater-harvesting-using-gis-multi-criteria-decision-making-techniques-in-badghis-province-of-afghanistan |
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