g dry weight/year
||Jorg Overmann and Ferran Garcia-Pichel, The Phototrophic Way of Life, Prokaryotes (2006) 2:32–85 chapter 1.3, edited by Stanley Falkow, Eugene Rosenberg, Karl-Heinz Schleifer, Erko Stackebrandt DOI: 10.1007/0-387-30742-7_3 p.32 left column 2nd paragraph
||Whittaker, R. H., Likens, G. E. 1975. The biosphere and man. In: Lieth H, Whittaker RH (Eds.) Primary productivity of the biosphere. Springer. New York, 305–328.
||P.32 left column 2nd paragraph: "At present the flux of electromagnetic energy supports a total primary production of 172.5\10^9 tons dry weight/year (168 g C/m^2/year, primary source). If this global primary production is converted to energy units (39.9 kJ/g C, assuming that all photosynthetic products are carbohydrate), 0.21 W×m^-2 and thus 0.13% of the available solar energy flux are converted into chemical energy." equivallent to 168 g C·m^-2 year^-1 after dividing by the surface area of the earth. 1g dry weight =~0.5 g Carbon
||Ron Milo - Admin