干旱区生态环境知识资源中心(Arid): Insights into hydrological and hydrochemical processes in response to water replenishment for lakes in arid regions

Arid

DOI	10.1016/j.jhydrol.2019.124386
	Insights into hydrological and hydrochemical processes in response to water replenishment for lakes in arid regions
	Chen, Jie 1,2; Qian, Hui 1,2; Gao, Yanyan 1,2; Wang, Haike 1,2; Zhang, Maosheng 3
通讯作者	Qian, Hui
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2020
卷号	581
英文摘要	Lakes in arid regions are ecologically valuable yet highly fragile due to intense evaporation. To provide an extra water supply for maintaining water balance in lakes, the Ecological Replenishment Water Program (ERWP) in northwest China has significantly changed the hydrological and hydrochemical conditions for these lakes. Descriptive statistics and water and mass balances, together with hydrogeochemical modeling were used in this study to gain an understanding of the impacts of water replenishment (irrigation and drainage water) on evolution for Shahu Lake. A virtual sample was introduced in NETPATH hydrogeochemical modeling to compute the net chemical reactions in the lake water. Variations in TDS indicated that the lake evolved to be saline during 2004-2012 (stage I) and then tended to be fresh during 2013-2014 (stage II). Results highlighted that groundwater outflow and chemical reactions were the overriding factors controlling chemical evolution in the lake system, which greatly depend on the replenishment activities. The salinity reduction from the virtual samples to the final samples were attributed to the precipitation of calcite and dolomite, dissolution of gypsum, Na-K and Na-Ca exchange, and the CO2 degassing in the lake system at an annual scale of 0.11 g/L in stage I and 0.15 g/L in stage D. The quality of replenishment water was as important as quantity for rehabilitating lakes, as it significantly determines the occurrence of chemical reactions in lake water. Findings from this paper can provide insight into the evolution of arid lakes in response to replenishment activities and can help contribute to better management of a valuable and fragile resource.
英文关键词	Lake salinity Replenishment activities Groundwater-lake interaction Chemical reactions Virtual sample
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000514758300042
WOS关键词	GROUNDWATER EVOLUTION ; CLIMATE-CHANGE ; SURFACE-WATER ; FLOW ; ISOTOPES ; BASIN ; IRRIGATION ; IMPACTS ; AQUIFER ; EVAPORATION
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314984
作者单位	1.Changan Univ, Sch Environm Sci & Engn, 126 Yanta Rd, Xian 710054, Shaanxi, Peoples R China; 2.Changan Univ, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effect Arid Area, 126 Yanta Rd, Xian 710054, Shaanxi, Peoples R China; 3.Xian Ctr China Geol Survey, 438 East Youyi Rd, Xian 710054, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jie,Qian, Hui,Gao, Yanyan,et al. Insights into hydrological and hydrochemical processes in response to water replenishment for lakes in arid regions[J],2020,581.
APA	Chen, Jie,Qian, Hui,Gao, Yanyan,Wang, Haike,&Zhang, Maosheng.(2020).Insights into hydrological and hydrochemical processes in response to water replenishment for lakes in arid regions.JOURNAL OF HYDROLOGY,581.
MLA	Chen, Jie,et al."Insights into hydrological and hydrochemical processes in response to water replenishment for lakes in arid regions".JOURNAL OF HYDROLOGY 581(2020).