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Article

A Novel Physically Based Distributed Model for Irrigation Districts’ Water Movement

1
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
2
National Center for Efficient Irrigation Engineering and Technology Research-Beijing, Beijing 100038, China
3
School of Water Resources and Hydropower Research, Wuhan University, Wuhan 430072, China
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College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, China
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Shahaoqu Station, Jiefangzha Irrigation Area Management Bureau, Hetao Irrigation District, Inner Mongolia 015400, China
*
Author to whom correspondence should be addressed.
Academic Editor: Guido D’Urso
Water 2021, 13(5), 692; https://doi.org/10.3390/w13050692
Received: 27 January 2021 / Revised: 26 February 2021 / Accepted: 2 March 2021 / Published: 4 March 2021
(This article belongs to the Section Water, Agriculture and Aquaculture)
The water movement research in irrigation districts is important for food production. Many hydrological models have been proposed to simulate the water movement on the regional scale, yet few of them have comprehensively considered processes in the irrigation districts. A novel physically based distributed model, the Irrigation Districts Model (IDM), was constructed in this study to address this problem. The model combined the 1D canal and ditch flow, the 1D soil water movement, the 2D groundwater movement, and the water interactions among these processes. It was calibrated and verified with two-year experimental data from Shahaoqu Sub-Irrigation Area in Hetao Irrigation District. The overall water balance error is 2.9% and 1.6% for the two years, respectively. The Nash–Sutcliffe efficiency coefficient (NSE) of water table depth and soil water content is 0.72 and 0.64 in the calibration year and 0.68 and 0.64 in the verification year. The results show good correspondence between the simulation and observation. It is practicable to apply the model in water movement research of irrigation districts. View Full-Text
Keywords: hydrological model; irrigation districts; irrigation and drainage; soil water; groundwater; unstructured grid; Shahaoqu Sub-Irrigation Area hydrological model; irrigation districts; irrigation and drainage; soil water; groundwater; unstructured grid; Shahaoqu Sub-Irrigation Area
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MDPI and ACS Style

Mi, B.; Chen, H.; Wang, S.; Jin, Y.; Jia, J.; Chang, X.; Fu, X.; Chai, R.; Wei, M. A Novel Physically Based Distributed Model for Irrigation Districts’ Water Movement. Water 2021, 13, 692. https://doi.org/10.3390/w13050692

AMA Style

Mi B, Chen H, Wang S, Jin Y, Jia J, Chang X, Fu X, Chai R, Wei M. A Novel Physically Based Distributed Model for Irrigation Districts’ Water Movement. Water. 2021; 13(5):692. https://doi.org/10.3390/w13050692

Chicago/Turabian Style

Mi, Boyu, Haorui Chen, Shaoli Wang, Yinlong Jin, Jiangdong Jia, Xiaomin Chang, Xiaojun Fu, Ronghua Chai, and Meiling Wei. 2021. "A Novel Physically Based Distributed Model for Irrigation Districts’ Water Movement" Water 13, no. 5: 692. https://doi.org/10.3390/w13050692

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