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Article

Study on the Exploitation Scheme of Groundwater under Well-Canal Conjunctive Irrigation in Seasonally Freezing-Thawing Agricultural Areas

1
State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
2
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
3
Department of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee, FL 32306, USA
*
Authors to whom correspondence should be addressed.
Academic Editors: Giorgio Rosatti, Tullio Tucciarelli, Francesco Macchione, Carlo Gualtieri and Silvia Barbetta
Water 2021, 13(10), 1384; https://doi.org/10.3390/w13101384
Received: 10 April 2021 / Revised: 7 May 2021 / Accepted: 14 May 2021 / Published: 16 May 2021
(This article belongs to the Special Issue Shallow Water Modeling)
The suitable groundwater exploitation scheme in freezing-thawing agricultural areas under the well-canal conjunctive irrigation conditions is confronted with two major challenges, which are computationally expensive local grid refinements along wells, and the model suitability problem in the freezing-thawing period. In this study, an empirical method for groundwater level prediction in the freezing-thawing period was developed and integrated with the local grid refinement groundwater model MODFLOW-LGR for the groundwater process prediction. The model was then applied to estimate the suitable groundwater exploitation scheme, including the size of well-irrigated area and the irrigation area of single well. The results showed that suitable size of well-irrigated area should be smaller than 15 × 106 m2, and the recommended irrigation area of single well as 15 × 104 m2 to 19 × 104 m2. The recommended layout parameters of groundwater exploitation were further used to plan the well-canal conjunctive irrigation scheme in Yongji irrigation district located in northern China. This study provides an important pilot example of the conjunctive use of groundwater and surface water in arid irrigation areas with a seasonal freezing-thawing period. View Full-Text
Keywords: seasonal freezing-thawing area; well-canal conjunctive irrigation; coupled model; MODFLOW-LGR seasonal freezing-thawing area; well-canal conjunctive irrigation; coupled model; MODFLOW-LGR
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MDPI and ACS Style

Yang, Y.; Zhu, Y.; Mao, W.; Dai, H.; Ye, M.; Wu, J.; Yang, J. Study on the Exploitation Scheme of Groundwater under Well-Canal Conjunctive Irrigation in Seasonally Freezing-Thawing Agricultural Areas. Water 2021, 13, 1384. https://doi.org/10.3390/w13101384

AMA Style

Yang Y, Zhu Y, Mao W, Dai H, Ye M, Wu J, Yang J. Study on the Exploitation Scheme of Groundwater under Well-Canal Conjunctive Irrigation in Seasonally Freezing-Thawing Agricultural Areas. Water. 2021; 13(10):1384. https://doi.org/10.3390/w13101384

Chicago/Turabian Style

Yang, Yang, Yan Zhu, Wei Mao, Heng Dai, Ming Ye, Jingwei Wu, and Jinzhong Yang. 2021. "Study on the Exploitation Scheme of Groundwater under Well-Canal Conjunctive Irrigation in Seasonally Freezing-Thawing Agricultural Areas" Water 13, no. 10: 1384. https://doi.org/10.3390/w13101384

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