干旱区生态环境知识资源中心(Arid): Water Use Conflict and Coordination between Agricultural and Wetlands-A Case Study of Yanqi Basin

Arid

DOI	10.3390/w12113225
	Water Use Conflict and Coordination between Agricultural and Wetlands-A Case Study of Yanqi Basin
	Jiang, Mengyao; Xie, Shuntao; Wang, Shuixian
通讯作者	Wang, SX
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:11
英文摘要	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 (R-2) 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 x 10(8) m(3) of groundwater discharged into the lake became -2.25 x 10(8) m(3). The lake level drops 1.3 m compared with the current year, when the groundwater exploitation increases by 10 x 10(8) m(3)/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.
英文关键词	wetland agricultural irrigation SWAT-MODFLOW groundwater
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000594875800001
WOS关键词	SURFACE-WATER ; GROUNDWATER ; SWAT ; MODFLOW ; MODEL ; RECHARGE ; IRRIGATION ; IMPACT
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327801
作者单位	[Jiang, Mengyao; Xie, Shuntao; Wang, Shuixian] Lanzhou Univ, Coll Earth & Environm Sci, 222 TianshuiNan Rd, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Mengyao,Xie, Shuntao,Wang, Shuixian. Water Use Conflict and Coordination between Agricultural and Wetlands-A Case Study of Yanqi Basin[J]. 兰州大学,2020,12(11).
APA	Jiang, Mengyao,Xie, Shuntao,&Wang, Shuixian.(2020).Water Use Conflict and Coordination between Agricultural and Wetlands-A Case Study of Yanqi Basin.WATER,12(11).
MLA	Jiang, Mengyao,et al."Water Use Conflict and Coordination between Agricultural and Wetlands-A Case Study of Yanqi Basin".WATER 12.11(2020).