Patterns of wood carbon dioxide efflux across a 2,000-m elevation transect in an Andean moist forest.

ABSTRACT: During a 1-year measurement period, we recorded the CO(2) efflux from stems (R(S)) and coarse woody roots (R(R)) of 13-20 common tree species at three study sites at 1,050, 1,890 and 3,050 m a.s.l. in an Andean moist forest. The objective of this work was to study elevation changes of woody tissue CO(2) efflux and the relationship to climate variation, site characteristics and growth. Furthermore, we aim to provide insights into important respiration-productivity relationships of a little studied tropical vegetation type. We expected R(S) and R(R) to vary with dry and humid season conditions. We further expected R(S) to vary more than R(R) due to a more stable soil than air temperature regime. Seasonal variation in woody tissue CO(2) efflux was indeed mainly attributable to stems. At the s

SUBMITTER: Zach A 

PROVIDER: S-EPMC2776160 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature