Carbon dioxide emitted from live stems of tropical trees is several years old

• Published in: Tree physiology Vol. 33; no. 7; pp. 743 - 752
• Main Authors: Muhr, J., Angert, A., Negron-Juarez, R. I., Munoz, W. A., Kraemer, G., Chambers, J. Q., Trumbore, S. E.
• Format: Journal Article
• Language: English
• Published: Canada 01.07.2013
• Subjects: Carbon - analysis; Carbon - metabolism; Carbon Dioxide - analysis; Carbon Dioxide - metabolism; Carbon Radioisotopes - analysis; Fabaceae - metabolism; Peru; Plant Stems - metabolism; Rain; Seasons; Simaroubaceae - metabolism; Trees; Peru; tree respiration; non-structural carbohydrates; bomb radiocarbon 14C; storage carbon pools

Storage carbon (C) pools are often assumed to contribute to respiration and growth when assimilation is insufficient to meet the current C demand. However, little is known of the age of stored C and the degree to which it supports respiration in general. We used bomb radiocarbon ((14)C) measurements...