figure 1
Area coverage, plant carbon and net primary production for major terrestrial ecosystems.
(From Takle.)
figure 2
Area coverage, plant carbon and net primary production for major terrestrial ecosystems in
1850 and 1980. (From Takle.)
figure 3
Atmospheric CO2 concentration excess as a function of time. Houghton, J.T.,
G.J. Jenkins, J.J. Ephraums, eds, 1990: 1990 Intergovernment Panel on Climate
Change, Cambridge University Press, 364 pp.
figure 4
Atmospheric changes in carbon 14 values derived from tree rings between 1820-1954.
(Source unknown.)
figure 5
Annual uptake of Carbon. (Adapted and corrected from Sarmiento, J. L., 1993:
Ocean and Carbon Cycle. C & E News, May 31.)
figure 6
Anthropogenic CO2 production rate. Houghton, J.T., G.J. Jenkins, J.J. Ephraums, eds,
1990: 1990 Intergovernment Panel on Climate Change,
Cambridge University Press, 364 pp.
figure 7
Global concentrations of methane in the troposphere.
(Adapted from Blake and Rowland (1987).)
figure 8
Average atmospheric methane concentrations. (Adapted from Khalil and Rasmussen,
C and E News, 64 (47), 23.)
figure 9
Methane, CO2 and temperature profiles. (Adapted from Woodwell et al, Scientific
American, April 1989.)
figure 10
Estimated sources and sinks of methane. (Adapted from the IPCC supplemental Report,
1992.)
figure 11
As shown in the pie chart from EPA, China is the world's lead producer of rice, followed by
India and Indonesia.
figure 12
Trends in domestic animal population (1890-1985). (From EPA, 1989: Policy Options for
Stabilizing Global Climate.)
figure 13
Estimated sources and sinks of carbon monoxide. (From EPA, 1989: Policy Options for Stabilizing
Global Climate.
Table 1
The global distribution of carbon as best known in 2001.
Carbon Content of Ecosystems on Land
Carbon Content in Soils
Changes in Carbon Content
Carbon Dioxide
Atmospheric Carbon Dioxide Inputs
Future Anthropogenic Emissions of CO2
Methane
Sources of Methane
Sinks for Methane
Carbon Monoxide
