Granier树干液流测定系统在树木蒸腾研究中常见问题的解决方案

Solutions to Common Problems for Measurement of Tree Transpiration using Granier’s Sap Flow System

摘要:

Granier树干液流测定系统基于电热平衡原理可精确、灵敏和连续地测定树干液流。然而在实际安装，测量和维护过程中的很多细节问题会直接影响数据的可靠性。对多年来在野外实际应用Granier测定系统过程中遇到的问题和解决方案进行阐述，重点介绍Granier树干液流测定系统的组成、工作原理及探针安装和维护过程中需要注意的事项，为其他使用者提供参考和帮助。

Abstract:

Granier’s sap flow system is a precise, sensitive and continuous thermal-electric measurement based on heat balance principle. However, any problem in the installation, measurement and maintenance could have direct impact on the data accuracy and reliability. Basing on many years’ experiential field work, in this paper, we introduce the principle and composition of the Granier’s sap flow measurement system, and focus on discussing the most common problems encountered in the installation and maintenance, hence to assist other users to apply the Granier’s sap flow system successfully.