Integrated numerical model for irrigated area water resources management
- 23 August 2019
- journal article
- research article
- Published by IWA Publishing in Journal of Water and Climate Change
- Vol. 11 (4), 980-991
- https://doi.org/10.2166/wcc.2019.042
Abstract
The likelihood of future global water shortages is increasing and further development of existing operational hydrologic models is needed to maintain sustainable development of the ecological environment and human health. In order to quantitatively describe the water balance factors and transformation relations, the objective of this article is to develop a distributed hydrologic model that is capable of simulating the surface water (SW) and groundwater (GW) in irrigation areas. The model can be used as a tool for evaluating the long-term effects of water resource management. By coupling the Soil and Water Assessment Tool (SWAT) and MODFLOW models, a comprehensive hydrological model integrating SW and GW is constructed. The hydrologic response units for the SWAT model are exchanged with cells in the MODFLOW model. Taking the Heihe River Basin as the study area, 10 years of historical data are used to conduct an extensive sensitivity analysis on model parameters. The developed model is run for a 40-year prediction period. The application of the developed coupling model shows that since the construction of the Heihe reservoir, the average GW level in the study area has declined by 6.05 m. The model can accurately simulate and predict the dynamic changes in SW and GW in the downstream irrigation area of Heihe River Basin and provide a scientific basis for water management in an irrigation district.Keywords
Funding Information
- National Natural Science Foundation of China (41672255, 41877232, 41402255, and 41790444)
- High-tech research cultivation project (300102268202 and 300102299201)
This publication has 15 references indexed in Scilit:
- Impacts of climate variability on the irrigation sector in the southern Murray-Darling Basin, AustraliaWater Resources and Economics, 2013
- Modelling potential impacts of climate change on water and nitrate export from a mid-sized, semiarid watershed in the US SouthwestClimatic Change, 2013
- A comparative in vitro evaluation of self-assembled PTX-PLA and PTX-MPEG-PLA nanoparticlesNanoscale Research Letters, 2013
- Assessment of climate change impact on the stream-flow in a typical debris flow watershed of Jianzhuangcuan catchment in Shaanxi Province, ChinaEnvironmental Earth Sciences, 2012
- Detection and Attribution of Temperature Changes in the Mountainous Western United StatesJournal of Climate, 2008
- Model Evaluation Guidelines for Systematic Quantification of Accuracy in Watershed SimulationsTransactions of the ASABE, 2007
- Modelling stream–aquifer seepage in an alluvial aquifer: an improved loosing-stream package for MODFLOWJournal of Hydrology, 2002
- Integrated numerical modeling for basin-wide water management: The case of the Rattlesnake Creek basin in south-central KansasJournal of Hydrology, 1999
- A numerical model based on coupled one‐dimensional Richards and Boussinesq equationsWater Resources Research, 1974
- Blueprint for a physically-based, digitally-simulated hydrologic response modelJournal of Hydrology, 1969