干旱区生态环境知识资源中心(Arid): Quantification of groundwater recharge and evapotranspiration along a semi-arid wetland transect using diurnal water table fluctuations

Arid

	Quantification of groundwater recharge and evapotranspiration along a semi-arid wetland transect using diurnal water table fluctuations
	Jia Wuhui; Yin Lihe; Zhang Maosheng; Zhang Xinxin; Zhang Jun; Tang Xiaoping; Dong Jiaqiu
来源期刊	干旱区科学
ISSN	1674-6767
出版年	2021
卷号	13 期号:5 页码:1674-6767
英文摘要	Groundwater is a vital water resource in arid and semi-arid areas. Diurnal groundwater table fluctuations are widely used to quantify rainfall recharge and groundwater evapotranspiration (ETg). To assess groundwater resources for sustainable use, we estimated groundwater recharge and ETg using the diurnal water table fluctuations at three sites along a section with different depths to water table (DWT) within a wetland of the Mukai Lake in the Ordos Plateau, Northwest China. The water table level was monitored at an hourly resolution using a Keller DCX-22A data logger that measured both the total pressure and barometric pressure, so that the effect of barometric pressure could be removed. At this study site, a rapid water table response to rainfall was observed in two shallow wells (i.e., Obs1 and Obs2), at which diurnal water table fluctuations were also observed over the study period during rainless days, indicating that the main factors influencing water table variation are rainfall and ETg. However, at the deep-water table site (Obs3), the groundwater level only reacted to the heaviest rainfalls and showed no diurnal variations. Groundwater recharge and ETg were quantified for the entire hydrological year (June 2017-June 2018) using the water table fluctuation method and the Loheide method, respectively, with depth-dependent specific yields. The results show that the total annual groundwater recharge was approximately 207 mm, accounting for 52% of rainfall at Obs1, while groundwater recharge was approximately 250 and 21 mm at Obs2 and Obs3, accounting for 63% and 5% of rainfall, respectively. In addition, the rates of groundwater recharge were mainly determined by rainfall intensity and DWT. The daily mean ETg at Obs1 and Obs2 over the study period was 4.3 and 2.5 mm, respectively, and the main determining factors were DWT and net radiation.
英文关键词	groundwater recharge groundwater evapotranspiration water table fluctuation semi-arid region Ordos Plateau
类型	Article
语种	英语
国家	中国
收录类别	CSCD
WOS类目	Mineralogy
CSCD记录号	CSCD:6980213
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365047
作者单位	Jia Wuhui, School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China.; Yin Lihe, Xi'an Center of Geological Survey, China Geological Survey, Xi'an, Shaanxi 710054, China.; Zhang Jun, Xi'an Center of Geological Survey, China Geological Survey, Xi'an, Shaanxi 710054, China.; Tang Xiaoping, Xi'an Center of Geological Survey, China Geological Survey, Xi'an, Shaanxi 710054, China.; Dong Jiaqiu, Xi'an Center of Geological Survey, China Geological Survey, Xi'an, Shaanxi 710054, China.; Zhang Maosheng, Institute of Disaster Prevention and Ecological Restoration, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.; Zhang Xinxin, Chinese Academy of Geological Sciences, Beijing 100037, China.
推荐引用方式 GB/T 7714	Jia Wuhui,Yin Lihe,Zhang Maosheng,et al. Quantification of groundwater recharge and evapotranspiration along a semi-arid wetland transect using diurnal water table fluctuations[J],2021,13(5):1674-6767.
APA	Jia Wuhui.,Yin Lihe.,Zhang Maosheng.,Zhang Xinxin.,Zhang Jun.,...&Dong Jiaqiu.(2021).Quantification of groundwater recharge and evapotranspiration along a semi-arid wetland transect using diurnal water table fluctuations.干旱区科学,13(5),1674-6767.
MLA	Jia Wuhui,et al."Quantification of groundwater recharge and evapotranspiration along a semi-arid wetland transect using diurnal water table fluctuations".干旱区科学 13.5(2021):1674-6767.