Fig. 5
From: Axial diffusion of respired CO2 confounds stem respiration estimates during the dormant season
Profiles of stem CO2 efflux (EA) measured with a stem cuvette on oak1 and oak2 when light was excluded from the entire tree (Ref) and when woody tissue photosynthesis was induced in 10-cm-long stem sections remote from the site of EA measurement by illuminating S10 (5–15 cm from the stem cuvette). Loess regression was performed to visually clarify the similar pattern of both trees