The impact of rising CO₂ and acclimation on the response of US forests to global warming.

ABSTRACT: The response of forests to climate change depends in part on whether the photosynthetic benefit from increased atmospheric CO₂ (∆C_a = future minus historic CO₂) compensates for increased physiological stresses from higher temperature (∆T). We predicted the outcome of these competing responses by using optimization theory and a mechanistic model of tree water transport and photosynthesis. We simulated current and future productivity, stress, and mortality in mature monospecific stands with soil, species, and climate sampled from 20 continental US locations. We modeled stands with and without acclimation to ∆C_a and ∆T, where acclimated forests adjusted leaf area, photosynthetic capacity, and stand density to maximize productivity while avoiding str

SUBMITTER: Sperry JS 

PROVIDER: S-EPMC6926066 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature