Has water-saving irrigation recovered groundwater in the Hebei Province plains of China? |
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| Authors: | Hongbo Zhang Vijay P Singh Dongyong Sun Qijun Yu Wei Cao |
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| Affiliation: | 1. Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Xi’an, China;2. School of Environmental Science and Engineering, Chang’an University, Xi’an, China;3. Department of Biological and Agricultural Engineering &4. Zachry Department of Civil and Environmental Engineering, Texas A&5. M University, College Station, USA;6. School of Environmental Science and Engineering, Chang’an University, Xi’an, China |
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| Abstract: | This study performed a quantitative evaluation of the impact of water-saving irrigation on the groundwater regime in the Hebei Province plains area. In this work, the change in groundwater regime and the contributions of precipitation and water-saving irrigation development were investigated. The results indicate that the groundwater overdraft has been mitigated to some extent, mainly due to changes in precipitation and the implementation of water-saving irrigation, with contributions of 64.3% and 35.7%, respectively, when considering only these two factors. Water-saving irrigation is accepted as an important means for reducing groundwater depletion, but should be used in conjunction with other measures. |
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| Keywords: | Policy implication water-saving irrigation groundwater overdraft groundwater balance plains area of Hebei Province |
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