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. 2019 Nov 25;116(51):25734–25744. doi: 10.1073/pnas.1913072116

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Fig. 5. — Acclimation at the tree and stand scale to 6 future scenarios of elevated atmospheric CO₂ (∆C_a) and warming of the GS (∆T). Scenarios by color: ∆C_a 4.5, historic climate with RCP4.5 atmospheric CO₂ concentration (blue downward triangle, n = 40); ∆C_a 8.5, historic climate with RCP8.5 C_a (green star, n = 40); ∆C_a∆T 4.5, future RCP4.5 weather and C_a (yellow circle, n = 240); ∆C_a∆T 8.5, future RCP8.5 weather and C_a (orange upward triangle, n = 240); ∆T 4.5, future RCP4.5 weather and historic C_a (pink square, n = 240); ∆T 8.5, future RCP8.5 weather and historic C_a (vermillion diamond, n = 240). Open symbols are individual simulations, and solid symbols are simulation means (SD bars). (A) Tree-level acclimation by percentage change (all percentages relative to historic) in maximum carboxylation rate (V_max25, coupled to electron transport capacity, J_max25) and percentage change in tree LA. (B) Stand-level adjustment by percentage change in stand basal area (BAI) and percentage change in LA index (LAI) as required to satisfy ecohydrologic equilibrium.