Annual carbon fixed by terrestrial gross photosynthesis

Value 120 10^15g/yr
Organism Biosphere
Reference Alistair M. Hetherington1 F. Ian Woodward. The role of stomata in sensing and driving environmental change. Nature. 2003 Aug 21 424(6951):901-8. p. 901 right column, top paragraphPubMed ID12931178
Primary Source Ciais, P. et al. A three-dimensional synthesis study of dO18 in atmospheric CO2. I. Surface fluxes. J. Geophys. Res. Atmos. 102, 5857–5872 (1997).
Comments Terrestrial gross photosynthesis annually fixes about 120×10^15gC (440×10^15gCO2) from the atmosphere’s 730×10^15gC (primary ref). The global distribution of this flux parallels the distribution of transpiration, indicating the closely coupled controls of stomata on CO2 and water vapour diffusion. See BNID 109839
Entered by Ben Marks
ID 101756