From the Arctic to the tropics: multibiome prediction of leaf mass per area using leaf reflectance
- Award ID(s):
- 1638720
- PAR ID:
- 10149217
- Date Published:
- Journal Name:
- New Phytologist
- Volume:
- 224
- Issue:
- 4
- ISSN:
- 0028-646X
- Page Range / eLocation ID:
- 1557 to 1568
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Summary Nonstructural carbohydrate (NSC) concentrations might reflect the strategies described in the leaf economic spectrum (LES) due to their dependence on photosynthesis and respiration.We examined if NSC concentrations correlate with leaf structure, chemistry, and physiology traits for 114 species from 19 sites and 5 biomes around the globe.Total leaf NSC concentrations varied greatly from 16 to 199 mg g−1dry mass and were mostly independent of leaf gas exchange and the LES traits. By contrast, leaf NSC residence time was shorter in species with higher rates of photosynthesis, following the fast‐slow strategies in the LES. An average leaf held an amount of NSCs that could sustain one night of leaf respiration and could be replenished in just a few hours of photosynthesis under saturating light, indicating that most daily carbon gain is exported.Our results suggest that NSC export is clearly linked to the economics of return on resource investment.more » « less
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