Although some CO2 released by respiring cells in tree stems diffuses directly to the
atmosphere, on a daily basis 15–55% can remain within the tree. High concentrations of …

Key message Isotope variation (δ 18 O) in wood suggests new insights on growth rhythms in
trees growing in tropical forest with extremely high precipitation, without seasonal droughts …

Two simplifying hypotheses have been proposed for whole‐plant respiration. One links
respiration to photosynthesis; the other to biomass. Using a first‐principles carbon balance …

A forest ecosystem model (CASTANEA) is developed with the aim to bridge the gap
between soil–vegetation–atmosphere (SVAT) and growth models. A physiologically multi …

Forest soils and canopies are major components of ecosystem CO 2 and CH 4 fluxes. In
contrast, less is known about coarse woody debris and living tree stems, both of which …

Temperature and light responses of CO2 efflux of Fagus sylvatica (beech) current‐year
stems were measured for 1 yr to estimate their annual carbon balance.• Gas exchanges …

Tree stems exchange CO2, CH4 and N2O with the atmosphere but the magnitudes, patterns
and drivers of these greenhouse gas (GHG) fluxes remain poorly understood. Our …

The CO2 efflux of adult trees is supplied by recent photosynthates and carbon (C) stores.
The extent to which these C pools contribute to growth and maintenance respiration (RG …

ABSTRACT CO2 released by respiring cells in tree stems can either diffuse to the
atmosphere or dissolve in xylem sap. In this study, the internal and external fluxes of CO2 …

The effects of short‐term extreme events on tree functioning and physiology are still rather
elusive. European beech is one of the most sensitive species to late frost and water …