Fig. 1.
Upper canopy leaf-level dark respiration. a Standard Joint UK Land Environmental Simulator (JULES) model (with TRY-based σ l and n l0 values and Q 10 response modulated at high and low temperatures (Methods)). Also revised R d,25 (T G = 25 °C) with both Q 10 = 2.0 and b,c responses to T l. b New R d,25 and b,c response to T l, for other PFTs. C3 grasses near identical curve to Shrubs. c New R d,25 and b,c formulation for broadleaf trees, but alternative acclimation temperatures. d New R d,25 and T l as b,c again broadleaf trees, for both T G = 25 °C and T G = T l. Orange curve common all panels. Light inhibition not included in responses