Next Article in Journal
Impact of Land Use on Karst Water Resources—A Case Study of the Kupa (Kolpa) Transboundary River Catchment
Next Article in Special Issue
Relationships between Temporal and Spatial Changes in Lakes and Climate Change in the Saline-Alkali Concentrated Distribution Area in the Southwest of Songnen Plain, Northeast China, from 1985 to 2015
Previous Article in Journal
Water Resources for Sustainable Healthy Diets: State of the Art and Outlook
Previous Article in Special Issue
Modelling Water Quality Improvements in a South Korean Inter-Basin Water Transfer System
Article

Water Use Conflict and Coordination between Agricultural and Wetlands—A Case Study of Yanqi Basin

by , and *,†
College of Earth and Environmental Sciences, Lanzhou University, 222 TianshuiNan Road, Lanzhou 730000, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work and should be considered co-first authors.
Water 2020, 12(11), 3225; https://doi.org/10.3390/w12113225
Received: 26 October 2020 / Revised: 13 November 2020 / Accepted: 14 November 2020 / Published: 18 November 2020
(This article belongs to the Special Issue Sustainable Development of Lakes and Reservoirs)
Increased groundwater extraction leads to the decrease of the extent of wetlands due to the implementation of a water-saving transformation project in an arid irrigation area. The application of integrated mitigation tools and strategies in China have increasing significance. In this study, an integrated approach (SWAT-MODFLOW) was followed; it is based on a soil and water assessment tool (SWAT) coupled with a modular three-dimensional finite difference groundwater model (MODFLOW). Recharge and evaporation values were estimated by SWAT and were then used to simulate groundwater in a MODFLOW model. Calibration (over the years 2000–2010) and validation (over the years 2010–2016) were performed, based on observed groundwater-level data; results showed that the combined SWAT-MODFLOW provides more accurate simulation and prediction of the dynamic changes of surface water and groundwater in irrigation areas than results from individual MODFLOW models. This method was applied to the Yanqi Basin, which is one of the most appropriate arid agricultural basins for modeling lake wetland and groundwater in China. The correlation coefficients (R2) between the simulated and real groundwater level are 0.96 and 0.91 in SWAT-MODFLOW and MODFLOW, respectively. With the gradual increase in the extraction to 248%, 0.62 × 108 m3 of groundwater discharged into the lake became −2.25 × 108 m3. The lake level drops 1.3 m compared with the current year, when the groundwater exploitation increases by 10 × 108 m3/year. Overall, the results of the coupling model offer scientific evidence for agricultural water management and lake recovery, so as to enhance the water use coordination. View Full-Text
Keywords: wetland; agricultural irrigation; SWAT-MODFLOW; groundwater wetland; agricultural irrigation; SWAT-MODFLOW; groundwater
Show Figures

Figure 1

MDPI and ACS Style

Jiang, M.; Xie, S.; Wang, S. Water Use Conflict and Coordination between Agricultural and Wetlands—A Case Study of Yanqi Basin. Water 2020, 12, 3225. https://doi.org/10.3390/w12113225

AMA Style

Jiang M, Xie S, Wang S. Water Use Conflict and Coordination between Agricultural and Wetlands—A Case Study of Yanqi Basin. Water. 2020; 12(11):3225. https://doi.org/10.3390/w12113225

Chicago/Turabian Style

Jiang, Mengyao, Shuntao Xie, and Shuixian Wang. 2020. "Water Use Conflict and Coordination between Agricultural and Wetlands—A Case Study of Yanqi Basin" Water 12, no. 11: 3225. https://doi.org/10.3390/w12113225

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop