Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia).
This paper analyzes the effect of the shallow water table on water use of the winter wheat (Triticumaestivum L.) that has replaced alfalfa (Medicago sativa) on the irrigated lands of the Fergana Valley,upstream of the Syrdarya River, in Central Asia. The effect of the shallow water table is investig...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/40241 |
| _version_ | 1855518482856148992 |
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| author | Karimov, Akmal A. Simunek, J. Hanjra, Munir A. Avliyakulov, M. Forkutsa, I. |
| author_browse | Avliyakulov, M. Forkutsa, I. Hanjra, Munir A. Karimov, Akmal A. Simunek, J. |
| author_facet | Karimov, Akmal A. Simunek, J. Hanjra, Munir A. Avliyakulov, M. Forkutsa, I. |
| author_sort | Karimov, Akmal A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This paper analyzes the effect of the shallow water table on water use of the winter wheat (Triticumaestivum L.) that has replaced alfalfa (Medicago sativa) on the irrigated lands of the Fergana Valley,upstream of the Syrdarya River, in Central Asia. The effect of the shallow water table is investigated using HYDRUS-1D. Numerical simulations show that the contribution of the groundwater to evapotranspiration increases with a rising water table and decreases with increasing irrigation applications. Under irrigation conditions, an increase in the groundwater evapotranspiration is associated mainly with an increase in evaporation loss, causing a buildup of salinity in the crop root zone. Evaporation losses from fields planted with winter wheat after the harvest amount up to 45-47% of total evaporation thus affecting soil salinity and ecosystem health. Promoting the use of groundwater for irrigation in order to lowerthe groundwater table is suggested to achieve water savings from the change in the cropping pattern.Unlocking the potential of groundwater for irrigation in the Fergana Valley can also contribute toward managing soil salinity and improving the health and resilience of water, land and ecosystems of water,land and ecosystems (WLE). |
| format | Journal Article |
| id | CGSpace40241 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| record_format | dspace |
| spelling | CGSpace402412023-02-15T12:12:57Z Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia). Karimov, Akmal A. Simunek, J. Hanjra, Munir A. Avliyakulov, M. Forkutsa, I. groundwater table water use water productivity river basins ecosystems health irrigated land crops evapotranspiration evaporation winter wheat soil salinity land management This paper analyzes the effect of the shallow water table on water use of the winter wheat (Triticumaestivum L.) that has replaced alfalfa (Medicago sativa) on the irrigated lands of the Fergana Valley,upstream of the Syrdarya River, in Central Asia. The effect of the shallow water table is investigated using HYDRUS-1D. Numerical simulations show that the contribution of the groundwater to evapotranspiration increases with a rising water table and decreases with increasing irrigation applications. Under irrigation conditions, an increase in the groundwater evapotranspiration is associated mainly with an increase in evaporation loss, causing a buildup of salinity in the crop root zone. Evaporation losses from fields planted with winter wheat after the harvest amount up to 45-47% of total evaporation thus affecting soil salinity and ecosystem health. Promoting the use of groundwater for irrigation in order to lowerthe groundwater table is suggested to achieve water savings from the change in the cropping pattern.Unlocking the potential of groundwater for irrigation in the Fergana Valley can also contribute toward managing soil salinity and improving the health and resilience of water, land and ecosystems of water,land and ecosystems (WLE). 2014 2014-06-13T14:47:14Z 2014-06-13T14:47:14Z Journal Article https://hdl.handle.net/10568/40241 en Limited Access Karimov, Akmal; Simunek, J.; Hanjra, Munir A.; Avliyakulov, M.; Forkutsa, I. 2014. Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia). Agricultural Water Management, 131:57-69. |
| spellingShingle | groundwater table water use water productivity river basins ecosystems health irrigated land crops evapotranspiration evaporation winter wheat soil salinity land management Karimov, Akmal A. Simunek, J. Hanjra, Munir A. Avliyakulov, M. Forkutsa, I. Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia). |
| title | Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia). |
| title_full | Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia). |
| title_fullStr | Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia). |
| title_full_unstemmed | Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia). |
| title_short | Effects of the shallow water table on water use of winter wheat and ecosystem health: implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia). |
| title_sort | effects of the shallow water table on water use of winter wheat and ecosystem health implications for unlocking the potential of groundwater in the fergana valley central asia |
| topic | groundwater table water use water productivity river basins ecosystems health irrigated land crops evapotranspiration evaporation winter wheat soil salinity land management |
| url | https://hdl.handle.net/10568/40241 |
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