Xylem Sap Flux Affects Conventional Stem CO2 Efflux Measurements in Tropical Trees

Abstract

The relationship between sap flux and stem CO2 efflux was assessed for three mango trees. We observed higher than expected CO2 effluxes at the place of measurement under intermediate sap flux velocities and lower fluxes under high sap flux velocity. This variation disappeared after removing the tree crown. © 2015 Association for Tropical Biology and Conservation Inc.