Extended Data Fig. 8: Comparison between observed temperature and optimal temperature for productivity (Topt).
From: Diminishing carryover benefits of earlier spring vegetation growth
a, Difference between spring mean temperature (TMAM) and Topt. b, Difference between summer mean temperature (TJJA) and Topt. c, d, Conceptual illustration of how air warming affects the MAM−JJA coupling of vegetation growth, for mid- and high- latitudes, respectively. The blue curves are the hump-shaped dependence of growth (or productivity) on temperature, where Topt corresponds to the maximum rate of growth/photosynthesis. dT represents the observed warming trend, and the thick arrows represent the responses of spring and summer growth to warming.
