| 应用Granier热消散探针（TDP）法测定树木的木质部液流：理论与实践 |
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| 引用本文： | 陆平 LaurentURBAN 赵平.应用Granier热消散探针（TDP）法测定树木的木质部液流：理论与实践[J].Acta Botanica Sinica,2004,46(6):631-646. |
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| 作者姓名： | 陆平 LaurentURBAN 赵平 |
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| 作者单位： | [1]《植物学报》通讯作者 [2]INRA／CIRAD-Flhor，StationdeBassin-Martin，BP180，97455Saint-Pierre，LaR6union，France [3]中国科学院华南植物研究所，广州510650 |
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| 基金项目： | 国家自然科学基金(30270239)，广东省自然科学基金(031265)，中国科学院知识创新工程重大项目(KZCX-SW-01-01B-05)，中国科学院华南植物研究所所长基金(2002-2110)。~~ |
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| 摘 要： | Granier热消散探针法是目前研究树木生理生态和森林水文最常用的测定整树水分利用的方法之一。然而,已有的相关综述文献中,还没有专门介绍利用Granier热消散探针研究木质部液流的综述文章。本文重点介绍了Granier热消散探针测定系统的理论基础,对有关该探针的校准和改进的最新研究进展进行了综述,并还深入探讨了零液流信号值的确定、自然热梯度、损伤效应、液流的逆格型和将木质部液流密度外推至整树蒸腾耗水量等重要的实际问题。
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| 关 键 词： | Granier方法 自然热梯度 树干液流 液流密度 热消散式木质部液流探针 整树水分利用 损伤效应 |
Granier's Thermal Dissipation Probe (TDP) Method for Measuring Sap Flow in Trees: Theory and Practice |
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| Authors: | Ping LU Laurent URBAN ZHAO Ping |
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| Institution: | Ping LU1*,Laurent URBAN2,ZHAO Ping3 |
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| Abstract: | Granier sap flow system is one of the most commonly used techniques for measurements ofwhole-tree water use in ecophysiological and forest hydrological studies. However, in the literature thereis not one paper that exclusively reviews the Granier method. In this paper, we recapitulate the theoreticalbasis of the Granier sap flow system and review recent developments in calibration and modification of thesensor probes. Practical issues, such as the determination of the non-flow signal values, natural thermalgradient, wounding effect, reversed sap flow pattern and extrapolation of individual measurement of sap fluxdensity to whole-tree sap flow, are discussed in detail. In the perspectives, new approaches are put forwardto use the strong coupling between photosynthesis and transpiration or canopy conductance, via themeasurement of 13C discrimination, to estimate whole-canopy carbon assimilation. |
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