Global photosynthetic capacity of C3 biomes retrieved from solar-induced chlorophyll fluorescence and leaf chlorophyll content

The maximum Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) carboxylation rate (V cmax ) has been widely used to help determine the photosynthetic capacity for carbon cycle modelling. Field measurements of V cmax are very limited, so fixed V cmax values over growing seasons are often used, causing considerable uncertainties in modelled results. Also, the lack of a global V cmax dataset with seasonal variations limits our understanding …