Figure 5: Global distribution of change.
From: Recent pause in the growth rate of atmospheric CO2 due to enhanced terrestrial carbon uptake
(a–c) The latitudinal distribution of the effect of changes in different forcing factors on (a) net ecosystem production (NEP), (b) gross primary production (GPP) and (c) ecosystem respiration (Reco). Shaded areas represent the mean and s.d. from the TRENDY ensemble of dynamic global vegetation models (DGVM) simulations with varying only CO2 (green) or climate (red). Dashed lines in a–c show the effect of changes in vegetation (or the fraction of absorbed radiation (fAPAR), blue) and water availability (Alpha, black) estimated using a diagnostic coupled photosynthesis-respiration (PR) model. (d–i) The spatial distribution of the influence of increasing atmospheric CO2 and changes in global climate on total rates of NEP (d,g), GPP (e,h) and total ecosystem respiration (f,i) in gC m−2 per year. Effects are estimated based on the difference between the 15-year periods of 1901–1915 and 1995–2010.
