干旱区生态环境知识资源中心(Arid): 热平衡茎流仪测量精度及误差来源分析

Arid

	热平衡茎流仪测量精度及误差来源分析
其他题名	Accuracy and Error Sources of the Stem Heat Balance Method in Sap Flow Measurements
	李双; 肖洪浪; 王芳; 周茂先
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2014
卷号	34 期号:6 页码:1544-1551
中文摘要	目前国内借助热平衡技术开展荒漠植物蒸腾耗水的研究已十分普遍,但涉及测量精度与误差来源的分析研究鲜有报道。本文对茎干热平衡茎流仪监测植株茎流的基本原理进行了介绍,并在此基础上论述了茎干热平衡方法在实际应用中的测量精度及误差的主要来源,为使用热平衡茎流仪监测植物,尤其是荒漠植物提供参考。水分是干旱、半干旱区植物生长的主要限制因子。明确荒漠植物的需水与耗水规律可以为荒漠区生态环境建设过程中的植被种类选择、布局及管理提供科学依据。
英文摘要	Currently, it has been very popular that using the heat balance technique to estimate transpiring water-consumption of desert plants in domestic. However, researches on accuracy and error sources of the stem heat balance method were rarely reported. This paper firstly introduced the theory of stem heat balance technique, and then according to research results about application of heat balance stem flow gauge, pointed out accuracy and error sources of stem heat balance in practical application. Finally, several suggestions were put forward for sap flow measurement of desert plants, including controlling effect of environment temperature on stem temperature, reasonably determining value of Ksh, clearing the changing processes of dT and Qs. Water is a main limiting factor for plant growth in arid and semi-arid region. Understanding water requirement and consumption regulation of desert vegetation could provide scientific basis for the category selection, distribution and management of vegetation in the process of ecological environment construction.
中文关键词	热平衡法 ; 茎流 ; 精度 ; 误差来源 ; 荒漠植物
英文关键词	heat balance method sap flow accuracy sources of error desert plants
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5278891
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/2XILL650/232238
作者单位	中国科学院寒区旱区环境与工程研究所, 中国科学院内陆河流域生态水文重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	李双,肖洪浪,王芳,等. 热平衡茎流仪测量精度及误差来源分析[J]. 中国科学院西北生态环境资源研究院,2014,34(6):1544-1551.
APA	李双,肖洪浪,王芳,&周茂先.(2014).热平衡茎流仪测量精度及误差来源分析.中国沙漠,34(6),1544-1551.
MLA	李双,et al."热平衡茎流仪测量精度及误差来源分析".中国沙漠 34.6(2014):1544-1551.