| Title: | Integrated modeling of conjunctive water use in a canal-well irrigation district in the Lower Yellow River Basin, China |
| Authors: | Liu, L., Y. Cui and Y. Luo |
| Year: | 2013 |
| Journal: | Journal of Irrigation and Drainage Engineering |
| Volume (Issue): | 139(9) |
| Pages: | 775–784 |
| Article ID: | |
| DOI: | 10.1061/(ASCE)IR.1943-4774.0000620 |
| URL (non-DOI journals): | |
| Model: | SWAT (modified) |
| Broad Application Category: | hydrologic only |
| Primary Application Category: | model and/or data interface |
| Secondary Application Category: | irrigation impacts or irrigation BMP scenarios |
| Watershed Description: | Liuyuankou Irrigation District, located in the Huiji River drainage area within the larger Huaihe River System in eastern China. |
| Calibration Summary: | |
| Validation Summary: | |
| General Comments: | |
| Abstract: | The Yellow River Basin is a closed basin under serious stress with dense population, intensive agriculture, and excess water
withdrawals. Low water use efficiency and groundwater overexploitation are threatening the sustainable development of the basin. This paper
describes a coupled modeling approach to analyze sustainable management strategies in surface–groundwater conjunctive use irrigation
districts in the lower Yellow River Basin. An appropriate irrigation schedule and an optimal range of groundwater levels are first established
using the soil water atmosphere plant (SWAP) model with data from an irrigation experiment station. The integrated surface water and
groundwater model was then set up using modified soil and water assessment tool (SWAT2000) and modular three-dimensional groundwater
flow model (MODFLOW) models. The two models were connected through standardized simulation grids and calibrated using field measurements.
Five scenarios that were designed according to different well-canal irrigation supply ratios and the irrigation schedule determined
by SWAP were tested using the integrated modeling approach. It is proved that conjunctive management strategies of canal diversions and
tube-well pumps can effectively reduce phreatic evaporation losses, increase water use efficiency, and sustain groundwater levels while
maintaining crop yields at current levels. |
| Language: | English |
| Keywords: | irrigation; water management; SWAP; SWAT2000; MODFLOW; Yellow River; conjunctive use |