Variation in White spruce needle respiration at the species range limits: A potential impediment to Northern expansion

Autor: Kevin L. Griffin, Zoe M. Griffin, Stephanie C. Schmiege, Sarah G. Bruner, Natalie T. Boelman, Lee A. Vierling, Jan U. H. Eitel
Rok vydání: 2022
Předmět:
Zdroj: Plant, Cell & Environment. 45:2078-2092
ISSN: 1365-3040
0140-7791
DOI: 10.1111/pce.14333
Popis: White spruce (Picea glauca) spans a massive range, yet the variability in respiratory physiology and related implications for tree carbon balance at the extremes of this distribution remain as enigmas. Working at both the most northern and southern extents of the distribution range more than 5000 km apart, we measured the short-term temperature response of dark respiration (R/T) at upper and lower canopy positions. R/T curves were fit to both polynomial and thermodynamic models so that model parameters could be compared among locations, canopy positions, and with previously published data. Respiration measured at 25°C (R
Databáze: OpenAIRE
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