干旱区生态环境知识资源中心(Arid): Groundwater evapotranspiration under psammophilous vegetation covers in the Mu Us Sandy Land, northern China

Arid

	Groundwater evapotranspiration under psammophilous vegetation covers in the Mu Us Sandy Land, northern China
	Cheng Donghui; Duan Jibo; Qian Kang; Qi Lijun; Yang Hongbin; Chen Xunhong
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2017
卷号	9 期号:1 页码:98-108
英文摘要	Groundwater is a significant component of the hydrological cycle in arid and semi-arid areas. Its evapotranspiration is an important part of the water budget because many plants are groundwater-dependent. To restore the degraded ecosystems, the need is pressing to further our understanding of the groundwater evapotranspiration (ET_g) in arid and semi-arid areas. This study employed the White method to estimate ET_g at four sites in the Mu Us Sandy Land in northern China, and the four sites are covered by Salix psammophila (SP site), Artemisia ordosica (AO site), Poplar alba (PA site), and Carex enervis (CE site), respectively. The depth of groundwater table and the duration of drainage were taken into account in calculating the specific yield (S_y) to improve the accuracy of the ET_g estimats. Our results showed that from late May to early November 2013 the ET_g were 361.87 (SP site), 372.53 (AO site), 597.86 (PA site) and 700.76 mm (CE site), respectively. The estimated ET_g rate was also species-dependent and the descending order of the ET_g rate for the four vegetation was: C. enervis, P. alba, A. ordosica, and S. psammophila. In addition, the depth of groundwater table has an obvious effect on the ET_g rate and the effect varied with the vegetation types. Furthermore, the evapotranspiration for the vegetation solely relying on the water supply from unsaturated layers above the groundwater table was much less than that for the vegetation heavily relying on the water supply from shallow aquifers.
英文关键词	groundwater evapotranspiration White method specific yield psammophilous vegetation Mu Us Sandy Land
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Mineralogy
CSCD记录号	CSCD:5905894
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335750
作者单位	Cheng Donghui, School of Environmental Sciences and Engineering, Chang'an University, Xi'an, Shaanxi 710054, China.; Duan Jibo, School of Environmental Sciences and Engineering, Chang'an University, Xi'an, Shaanxi 710054, China.; Qian Kang, School of Environmental Sciences and Engineering, Chang'an University, Xi'an, Shaanxi 710054, China.; Qi Lijun, School of Environmental Sciences and Engineering, Chang'an University, Xi'an, Shaanxi 710054, China.; Yang Hongbin, School of Environmental Sciences and Engineering, Chang'an University, Xi'an, Shaanxi 710054, China.; Chen Xunhong, School of Nature Resources, University of Nebraska-Lincoln, NE, 68583-0996, USA.
推荐引用方式 GB/T 7714	Cheng Donghui,Duan Jibo,Qian Kang,et al. Groundwater evapotranspiration under psammophilous vegetation covers in the Mu Us Sandy Land, northern China[J],2017,9(1):98-108.
APA	Cheng Donghui,Duan Jibo,Qian Kang,Qi Lijun,Yang Hongbin,&Chen Xunhong.(2017).Groundwater evapotranspiration under psammophilous vegetation covers in the Mu Us Sandy Land, northern China.Journal of Arid Land,9(1),98-108.
MLA	Cheng Donghui,et al."Groundwater evapotranspiration under psammophilous vegetation covers in the Mu Us Sandy Land, northern China".Journal of Arid Land 9.1(2017):98-108.