Granier’s Thermal Dissipation Probe (TDP) Method for Measuring Sap Flow in Trees: Theory and Practice A Study on the Stem Sap Flow of Ind ividualTrees of Populus simonii underD ifferentWeather Conditions in Rainy Season in Guanting Reservoir Measured Sap Flow and Estimated Evapotranspiration of Tropical Eucalyptus urophylla Plantations in South China A study on sap flux density of two eucalyptus (Eucalyptus uro phylla) plantations in southeastern China by heat-pulse method Effect of stem diameter at breast height on skewness of sap flow pattern and time lag CO2 Flux Components,Their Contributions to Stem Respiration and the Key Impact Factors in Stems of Larch The variations of sap flux density and whole-tree transpiration across individuals of Acacia mangium Dynamics of Trunk Sap Flux Density of Schima superba Radial Variation in Sap Flux Density as a Function of Sapwood Thickness in Two Eucalyptus (Eucalyptus urophylla) Plantations