干旱区生态环境知识资源中心(Arid): Water use measurement by non-irrigated Tamarix ramosissima in arid regions of Northwest China

Arid

DOI	10.3724/SP.J.1226.2015.00146
	Water use measurement by non-irrigated Tamarix ramosissima in arid regions of Northwest China
	Li, Shuang; Xiao, HongLang; Cheng, YiBen; Wang, Fang
通讯作者	Xiao, HL
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2015
卷号	7 期号:2 页码:146-156
英文摘要	Tamarix ramosissima Ledeb. is a typical hardy desert plant growing in arid regions of Northwest China. Sap flow in stems of T. ramosissima plants were measured continuously to determine the diurnal and seasonal variations of sap flow and to understand the water requirements of this species and the response of sap flow to meteorological factors. This article compared the sap flow rate measured by the heat balance method with the transpiration rate measured by rapid weighing, and validated that heat balance sap flow gauges were reliable for monitoring transpiration. The influence of meteorological factors on stem sap flow during the growing season was: solar radiation > vapor pressure deficit > air temperature > relative humidity > wind speed. Bidirectional sap flows occurred at night, and negative sap flow generally corresponded to high atmospheric humidity. The average error in predicted sap flow rate ranged from -0.78% to 14.00% from June to September and for transpiration the average error was 8.19%. Therefore, based on the functional equations between sap flow and meteorological factors as well as sapwood area, transpiration of an individual plant, and even the stand-level transpiration, can be estimated accurately through extrapolation.
英文关键词	Tamarix ramosissima Ledeb. heat balance method sap flow transpiration meteorological factors
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000391100800005
WOS关键词	HEAT-BALANCE METHOD ; MASS-FLOW RATE ; SAP FLOW ; DESERT REGION ; TRANSPIRATION ; SHRUBS ; TREES ; STEMS ; GAUGE ; LEAF
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331301
作者单位	[Li, Shuang] Shaanxi Univ Technol, Sch Hist & Tourism, Hanzhong 723001, Shaanxi, Peoples R China; [Xiao, HongLang; Cheng, YiBen; Wang, Fang] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Shuang,Xiao, HongLang,Cheng, YiBen,et al. Water use measurement by non-irrigated Tamarix ramosissima in arid regions of Northwest China[J]. 中国科学院西北生态环境资源研究院,2015,7(2):146-156.
APA	Li, Shuang,Xiao, HongLang,Cheng, YiBen,&Wang, Fang.(2015).Water use measurement by non-irrigated Tamarix ramosissima in arid regions of Northwest China.SCIENCES IN COLD AND ARID REGIONS,7(2),146-156.
MLA	Li, Shuang,et al."Water use measurement by non-irrigated Tamarix ramosissima in arid regions of Northwest China".SCIENCES IN COLD AND ARID REGIONS 7.2(2015):146-156.