SCOPE 13 - The Global Carbon Cycle Contents Foreword J. W. M. La Rivière Preface List of Participants Editorial Note Group Reports and Recommendations of the Ratzeburg Workshop 1. The Global Biogeochemical Carbon Cycle B. Bolin, E. T. Degens, P. Duvigneaud and S. Kempe 2. Primordial Synthesis of Organic Matter E. T. Degens 3. Variations in the Atmospheric CO2 Content H.-D. Freyer 4. Atmospheric Cycles of Trace Gases Containing Carbon H.-D. Freyer 5. Terrestrial Primary Production and Phytomass G. L. Ajtay, P. Ketner, and P. Duvigneaud 6. The Effects of Man on the Biogeochemical Cycle of Carbon in Terrestrial Ecosystems T. Bramryd 7. Net Transfer of Carbon between the Land Biota and the Atmosphere, Induced by Man U. Hampicke 8. The Possible Effects of Increased CO2 on Photosynthesis J. Goudriaan and Jr. G. L. Ajtay 9. The Carbonate System of the Ocean K. Wagener 10. Primary Production in Aquatic Environments C. G. N. de Vooys 11. Organic Carbon in the Ocean: Nature and Cycling K. Mopper and E. T. Degens 12. Carbon in the Freshwater Cycle S. Kempe 13. Carbon in the Rock Cycle S. Kempe 14. Potential Use of Satellites for Assessing Pools and Fluxes of the Carbon Cycle on Earth K.-H. Szekielda 15. A Model of CO2 Interaction between Atmosphere, Oceans, and Land Biota A. Bjöorkström | The electronic version of this publication has been prepared at the M S Swaminathan Research Foundation, Chennai, India.