1. Keeling C. D., Whorf T. P., Trends: A Compendium of Data on Global Change (Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, TN, 2000)[text online].
2. Vegetation effects on the isotope composition of oxygen in atmospheric CO2
3. A three-dimensional synthesis study of δ18O in atmospheric CO2: 2. Simulations with the TM2 transport model
4. The 18 O content of atmospheric CO 2 is most strongly influenced by the different 18 O contents of water in the oceans and in precipitation. This leads to a large latitudinal gradient in the 18 O content of CO 2 but with little effect due to marine productivity. By contrast leaves of terrestrial plants annually influence about one-third of the 18 O content of atmospheric CO 2 . In addition the rate of exchange in the 18 O content of CO 2 is about four times higher for terrestrial plants than for all oceanic exchange (2).
5. Influence of Carbonic Anhydrase Activity in Terrestrial Vegetation on the
18
O Content of Atmospheric CO
2