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A Rapid Laser Probing Method Facilitates the Non-invasive and Contact-free Determination of Leaf Thermal Properties
Published on: January 8, 2017
[Research advance in application of heat technique in studying stem sap flow]
Huizhen Sun1, Xiaofeng Zhou, Shaozhong Kang
1Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China. sunhuizhen@yahoo.com.cn
Abstract:
This paper reviewed the principles of heat technique and its application in studying stem sap flow. Heat technique combined with determinations of tree physiological items such as whole-tree hydraulic conductance, stomatal conductance, water potential, and stem water storage can make us deeply analyze the regulation mechanism of tree transpiration, and approach the effect of environmental conditions on stem sap flow and its response. In addition, this technique can be also used for a long-term measurement of the hydrological characters of zonal forest stands, which will give a powerful technical support in properly assessing the hydrological effect of forest.
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