干旱区生态环境知识资源中心(Arid): Response of shelterbelt transpiration to shallow groundwater in arid areas

Arid

DOI	10.1016/j.jhydrol.2020.125611
	Response of shelterbelt transpiration to shallow groundwater in arid areas
	Du, Jiali; Wang, Xingwang; Huo, Zailin; Guan, Huade; Xiong, Yunwu; Huang, Guanhua
通讯作者	Huo, ZL (corresponding author), China Agr Univ, Ctr Agr Water Res China, 17 Qinghua East Rd, Beijing 100083, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	592
英文摘要	Shelterbelts play an important ecological function in arid irrigation land, while competing for water which otherwise supports crop growth. Estimation of shelterbelt water consumption from groundwater is essential to better manage shelterbelts in irrigation districts, but often a challenging task due to its geometry and varying accessibility to groundwater. In the study, sap flow of Populus popularis planted along an irrigation canal was measured during two growing seasons (2016-2017) to investigate its response to varying shallow groundwater. Considering the radial pattern of sap flux density (J(s)) and measurement azimuthal effect, corrected Js was adopted to better represent transpiration. The results indicate that increased soil moisture and groundwater table during irrigation periods with water flowing in the canal enhance relative Js of shelterbelt by 5.5-25.8% from the non-irrigation intervals. The threshold of groundwater depth (3.6 m) is identified, beyond which transpiration of the seven-year-old shelterbelt becomes very low. Greenbelt transpiration strongly depends on groundwater within the threshold, and can be estimated through an exponential function of the ratio of atmospheric demand and groundwater depth. Besides, with the decrease of reference evapotranspiration from June to September, the sensitivity of shelterbelt transpiration response to groundwater table depth was increased. This study provides necessary information to evaluate farmland shelterbelt transpiration for rational water resource allocation to meet the ecological water requirement in arid areas with shallow groundwater.
英文关键词	Shelterbelt transpiration Relative sap flux density Canal irrigation water Groundwater depth
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000639844900013
WOS关键词	HEIHE RIVER-BASIN ; SAP FLOW ; TARIM RIVER ; WATER-USE ; PHYSIOLOGICAL-RESPONSE ; LOWER REACHES ; TREES ; SOIL ; VEGETATION ; FOREST
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350869
作者单位	[Du, Jiali; Wang, Xingwang; Huo, Zailin; Xiong, Yunwu; Huang, Guanhua] China Agr Univ, Ctr Agr Water Res China, 17 Qinghua East Rd, Beijing 100083, Peoples R China; [Guan, Huade] Flinders Univ S Australia, Coll Sci & Engn, Natl Ctr Groundwater Res & Training, Adelaide, SA 5001, Australia; [Xiong, Yunwu; Huang, Guanhua] China Agr Univ, Chinese Israeli Int Ctr Res & Training Agr, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Du, Jiali,Wang, Xingwang,Huo, Zailin,et al. Response of shelterbelt transpiration to shallow groundwater in arid areas[J]. 中国农业大学,2021,592.
APA	Du, Jiali,Wang, Xingwang,Huo, Zailin,Guan, Huade,Xiong, Yunwu,&Huang, Guanhua.(2021).Response of shelterbelt transpiration to shallow groundwater in arid areas.JOURNAL OF HYDROLOGY,592.
MLA	Du, Jiali,et al."Response of shelterbelt transpiration to shallow groundwater in arid areas".JOURNAL OF HYDROLOGY 592(2021).