Vertical and seasonal variation in the δ¹³C of leaf-respired CO₂ in a mixed conifer forest.

Abstract

The C-isotopic composition (δ¹³C) of leaf respiration (δ(LR)) has previously been shown to vary among functional groups, plant organs and times of day. We here investigated vertical and seasonal variation in δ(LR) through deep (~35 m) forest canopies. We measured δ(LR), δ¹³C of leaf bulk organic matter (δ(LB)), specific leaf area, net photosynthesis (A) and… (More)
DOI: 10.1093/treephys/tpr026

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