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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 6, NUMBER 3, MARCH 1993

PROFESSIONAL PUBLICATIONS...
THE CARBON CYCLE: TERRESTRIAL

Item #d93mar50

Comment on the relative roles of inorganic caliche and organic carbon in carbon storage since the last glacial maximum, Nature, 361(6409), 213-214, Jan. 21, 1993.

Item #d93mar51

"Dynamics of Soil Carbon during Deglaciation of the Laurentide Ice Sheet," J.W. Harden (USGS, Menlo Pk. CA 94025), E.T. Sundquist et al., Science, 258(5090), 1921-1924, Dec. 18, 1992.

Sequestration of carbon following deglaciation continues today, but the natural rate of sequestration in soils is small relative to the rate of anthropogenic CO₂ production.

Item #d93mar52

"Tropical Soils Could Dominate the Short-Term Carbon Cycle Feedbacks to Increased Global Temperatures," Clim. Change, 22(4), Dec. 1992.

Item #d93mar53

"Carbon Dynamics of Land Use in Great Britain," W.N. Adger (CSERGE, Univ. E. Anglia, Norwich NR4 7TJ, UK), K. Brown et al., J. Environ. Mgmt., 36, 117-133, 1992.

Aggregate yearly carbon fluctuations from 20 categories of land use were calculated by estimating biomass changes and soil carbon changes for each group, and results compared with an aggregate land-use balance by estimating carbon fixations and emissions from agriculture and forestry. Conversion of land to cultivation leads to medium-term reductions in soil and biomass carbon; forestry has not fixed large amounts of carbon because new planting causes loss of previously fixed carbon. Carbon sequestration is relatively minor compared to emissions from other sectors of the British economy.

Item #d93mar54

Comment on the carbon budget of European forests, Science, 258(5081), 382-383, Oct. 16, 1992.

Item #d93mar55

"Global Change and the Carbon Balance of Arctic Ecosystems," G.R. Shaver (Ecosyst. Ctr., Marine Biol. Lab., Woods Hole MA 02543), W.D. Billings et al., BioSci., 42(6), 433-441, June 1992.

Item #d93mar56

"Soil Temperature, Nitrogen Mineralization and Carbon Source-Sink Relationships in Boreal Forests," G.B. Bonan (NCAR, POB 3000, Boulder CO 80307), K. Van Cleve, Can. J. For. Res., 22(5), 629-639, May 1992.

Modeling studies highlight the importance of interactions among net primary production, decomposition, and nitrogen mineralization in determining the response of ecosystems to climatic change.

Item #d93mar57

"Implications of Climate Change for Production and Decomposition in Grasslands and Coniferous Forests," G. Esser (IIASA, A-2361 Laxenburg, Austria), Ecol. Applic., 2(1), 47-54, Feb. 1992.

Used a geographical information system and a climate-driven carbon-budget model to investigate climatic limitations of grassland and coniferous forest.