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.

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 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).

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Main Authors:	Karimov, Akmal A., Simunek, J., Hanjra, Munir A., Avliyakulov, M., Forkutsa, I.
Format:	Journal Article biblioteca
Language:	English
Published:	2014
Subjects:	groundwater table, water use, water productivity, river basins, ecosystems, health, irrigated land, crops, evapotranspiration, evaporation, winter wheat, soil salinity, land management,
Online Access:	https://hdl.handle.net/10568/40241
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id	dig-cgspace-10568-40241
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spelling	dig-cgspace-10568-402412023-02-15T12:12:57Z 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 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. 0378-3774 https://hdl.handle.net/10568/40241 Managing Resource Variability and Competing Use en Limited Access
institution	CGIAR
collection	DSpace
country	Francia
countrycode	FR
component	Bibliográfico
access	En linea
databasecode	dig-cgspace
tag	biblioteca
region	Europa del Oeste
libraryname	Biblioteca del CGIAR
language	English
topic	groundwater table water use water productivity river basins ecosystems health irrigated land crops evapotranspiration evaporation winter wheat soil salinity land management groundwater table water use water productivity river basins ecosystems health irrigated land crops evapotranspiration evaporation winter wheat soil salinity land management
spellingShingle	groundwater table water use water productivity river basins ecosystems health irrigated land crops evapotranspiration evaporation winter wheat soil salinity land management 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).
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
topic_facet	groundwater table water use water productivity river basins ecosystems health irrigated land crops evapotranspiration evaporation winter wheat soil salinity land management
author	Karimov, Akmal A. Simunek, J. Hanjra, Munir A. Avliyakulov, M. Forkutsa, I.
author_facet	Karimov, Akmal A. Simunek, J. Hanjra, Munir A. Avliyakulov, M. Forkutsa, I.
author_sort	Karimov, Akmal A.
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_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_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_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).
publishDate	2014
url	https://hdl.handle.net/10568/40241
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_version_	1779051462015320064

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).

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