Evaluation of managed aquifer recharge in the Central Highlands of Vietnam
Study region: Dak Lak province in the Central Highlands of Vietnam Study focus: Intensification of agriculture has resulted in unsustainably high levels of groundwater use in the Central Highlands. High monsoonal rainfall provides opportunities to boost groundwater storage through managed aquifer re...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Elsevier
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/125571 |
| _version_ | 1855518822026444800 |
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| author | Pavelic, Paul Chu Thai Hoanh D'Haeze, Dave Bui Ngoc Vinh Viossanges, Mathieu Do Thanh Chung Le Quang Dat Ross, Andrew |
| author_browse | Bui Ngoc Vinh Chu Thai Hoanh D'Haeze, Dave Do Thanh Chung Le Quang Dat Pavelic, Paul Ross, Andrew Viossanges, Mathieu |
| author_facet | Pavelic, Paul Chu Thai Hoanh D'Haeze, Dave Bui Ngoc Vinh Viossanges, Mathieu Do Thanh Chung Le Quang Dat Ross, Andrew |
| author_sort | Pavelic, Paul |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Study region: Dak Lak province in the Central Highlands of Vietnam
Study focus: Intensification of agriculture has resulted in unsustainably high levels of groundwater use in the Central Highlands. High monsoonal rainfall provides opportunities to boost groundwater storage through managed aquifer recharge (MAR), yet experience with MAR in the region is absent. In response, five farm-scale pilots were implemented in collaboration with local farmers whereby runoff from roofs and fields was recharged into shallow dug wells. The pilots were closely monitored over three years.
New hydrological insights for the region: MAR pilots exhibited large contrasts in performance, with volumes recharged ranging from 5 to 530 m3 per year. Pilot sites with cleaner roof runoff water performed best, whilst those using more turbid water from unpaved roads performed worst. Water quality analyses did not identify parameters of major concern for irrigation. Field data and modelling indicate that the size of the recharge water plumes are small relative to the high groundwater velocities making the recharge water difficult to recover from the recharge well in this setting. Water is however contained locally, providing potential for improved water availability within the local area. Farmer attitudes towards MAR vary in response to the technical performance and a range of socioeconomic factors. These findings may provide insights for researchers or practitioners from other regions where groundwater dependence is high but experience in MAR is lacking. |
| format | Journal Article |
| id | CGSpace125571 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1255712025-10-26T13:02:00Z Evaluation of managed aquifer recharge in the Central Highlands of Vietnam Pavelic, Paul Chu Thai Hoanh D'Haeze, Dave Bui Ngoc Vinh Viossanges, Mathieu Do Thanh Chung Le Quang Dat Ross, Andrew aquifers groundwater recharge groundwater management highlands climate resilience groundwater level rain runoff water quality monitoring water storage irrigation water pilot projects farmers' attitudes Study region: Dak Lak province in the Central Highlands of Vietnam Study focus: Intensification of agriculture has resulted in unsustainably high levels of groundwater use in the Central Highlands. High monsoonal rainfall provides opportunities to boost groundwater storage through managed aquifer recharge (MAR), yet experience with MAR in the region is absent. In response, five farm-scale pilots were implemented in collaboration with local farmers whereby runoff from roofs and fields was recharged into shallow dug wells. The pilots were closely monitored over three years. New hydrological insights for the region: MAR pilots exhibited large contrasts in performance, with volumes recharged ranging from 5 to 530 m3 per year. Pilot sites with cleaner roof runoff water performed best, whilst those using more turbid water from unpaved roads performed worst. Water quality analyses did not identify parameters of major concern for irrigation. Field data and modelling indicate that the size of the recharge water plumes are small relative to the high groundwater velocities making the recharge water difficult to recover from the recharge well in this setting. Water is however contained locally, providing potential for improved water availability within the local area. Farmer attitudes towards MAR vary in response to the technical performance and a range of socioeconomic factors. These findings may provide insights for researchers or practitioners from other regions where groundwater dependence is high but experience in MAR is lacking. 2022-12 2022-11-22T21:12:09Z 2022-11-22T21:12:09Z Journal Article https://hdl.handle.net/10568/125571 en Open Access Elsevier Pavelic, Paul; Hoanh, Chu Thai; D’haeze, D.; Vinh, B. N.; Viossanges, Mathieu; Chung, D. T.; Dat, L. Q.; Ross, A. 2022. Evaluation of managed aquifer recharge in the Central Highlands of Vietnam. Journal of Hydrology: Regional Studies, 44:101257. [doi: https://doi.org/10.1016/j.ejrh.2022.101257] |
| spellingShingle | aquifers groundwater recharge groundwater management highlands climate resilience groundwater level rain runoff water quality monitoring water storage irrigation water pilot projects farmers' attitudes Pavelic, Paul Chu Thai Hoanh D'Haeze, Dave Bui Ngoc Vinh Viossanges, Mathieu Do Thanh Chung Le Quang Dat Ross, Andrew Evaluation of managed aquifer recharge in the Central Highlands of Vietnam |
| title | Evaluation of managed aquifer recharge in the Central Highlands of Vietnam |
| title_full | Evaluation of managed aquifer recharge in the Central Highlands of Vietnam |
| title_fullStr | Evaluation of managed aquifer recharge in the Central Highlands of Vietnam |
| title_full_unstemmed | Evaluation of managed aquifer recharge in the Central Highlands of Vietnam |
| title_short | Evaluation of managed aquifer recharge in the Central Highlands of Vietnam |
| title_sort | evaluation of managed aquifer recharge in the central highlands of vietnam |
| topic | aquifers groundwater recharge groundwater management highlands climate resilience groundwater level rain runoff water quality monitoring water storage irrigation water pilot projects farmers' attitudes |
| url | https://hdl.handle.net/10568/125571 |
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