干旱区生态环境知识资源中心(Arid): Estimation of Groundwater Evapotranspiration Using Diurnal Groundwater Level Fluctuations under Three Vegetation Covers at the Hinterland of the Badain Jaran Desert

Arid

DOI	10.1155/2020/8478140
	Estimation of Groundwater Evapotranspiration Using Diurnal Groundwater Level Fluctuations under Three Vegetation Covers at the Hinterland of the Badain Jaran Desert
	Zhang, Wenjia; Zhao, Liqiang; Yu, Xinran; Zhang, Lyulyu; Wang, Nai'; ang
通讯作者	Wang, Nai&#39 ; ang
来源期刊	ADVANCES IN METEOROLOGY
ISSN	1687-9309
EISSN	1687-9317
出版年	2020
卷号	2020
英文摘要	Accurate estimation of groundwater evapotranspiration (ETG) is the key for regional water budget balance and ecosystem restoration research in hyper-arid regions. Methods that use diurnal groundwater level (GWL) fluctuations have been applied to various ecosystems, especially in arid or semi-arid environments. In this study, groundwater monitoring devices were deployed in ten lake basins at the hinterland of the Badain Jaran Desert, and the White method was used to estimate the ETG of these sites under three main vegetation covers. The results showed that regular diurnal fluctuations in GWL occurred only at sites with vegetation coverage and that vegetation types and their growth status were the direct causes of this phenomenon. On a seasonal scale, the amplitudes of diurnal GWL fluctuations are related to vegetation phenology, and air temperature is an important factor controlling phenological amplitude differences. The estimation results using the White method revealed that the ETG rates varied among the observation sites with different vegetation types, and the months with the highest ETG rates were also different among the sites. Overall, ETG was 600 similar to 900 mm at observation sites with Phragmites australis during a growing season (roughly early May to late October), 600 similar to 650 mm in areas with Achnatherum splendens, and 500 similar to 650 mm in areas with Nitraria tangutorum and Achnatherum splendens. Depth to water table and potential evapotranspiration jointly control the ETG rates, while the influence of these two factors varied, depending on the specific vegetation conditions of each site. This study elucidated the relationship between diurnal GWL fluctuations and vegetation in desert groundwater-recharged lake basins and expanded the application of the White method, providing a new basis for the calculation and simulation of regional water balance.
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000522400200002
WOS关键词	WATER-TABLE FLUCTUATIONS ; HEIHE RIVER-BASIN ; AQUIFER ; RATES ; FLOW
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
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/2XILL650/313898
作者单位	Lanzhou Univ, Coll Earth & Environm Sci, Ctr Glacier & Desert Res, Lanzhou 73000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Wenjia,Zhao, Liqiang,Yu, Xinran,et al. Estimation of Groundwater Evapotranspiration Using Diurnal Groundwater Level Fluctuations under Three Vegetation Covers at the Hinterland of the Badain Jaran Desert[J]. 兰州大学,2020,2020.
APA	Zhang, Wenjia,Zhao, Liqiang,Yu, Xinran,Zhang, Lyulyu,Wang, Nai',&ang.(2020).Estimation of Groundwater Evapotranspiration Using Diurnal Groundwater Level Fluctuations under Three Vegetation Covers at the Hinterland of the Badain Jaran Desert.ADVANCES IN METEOROLOGY,2020.
MLA	Zhang, Wenjia,et al."Estimation of Groundwater Evapotranspiration Using Diurnal Groundwater Level Fluctuations under Three Vegetation Covers at the Hinterland of the Badain Jaran Desert".ADVANCES IN METEOROLOGY 2020(2020).