| Main Title |
Equilibrium-Analysis of Projected Climate Change Effects on the Global Soil Organic Matter Pool. |
| Author |
Turner, D. P. ;
Leemans, R. ;
|
| CORP Author |
ManTech Environmental Technology, Inc., Corvallis, OR.;Corvallis Environmental Research Lab., OR. |
| Publisher |
1992 |
| Year Published |
1992 |
| Report Number |
EPA-68-C8-0006; EPA/600/A-92/039; |
| Stock Number |
PB92-153022 |
| Additional Subjects |
Organic matter ;
Biodeterioration ;
Global warming ;
Climatic changes ;
Air pollution ;
Soil microorganisms ;
Vegetation ;
General Circulation Models ;
Carbon cycle ;
Air-biosphere interactions ;
Air land interactions ;
Microbial degradation ;
Terrestrial ecosystems ;
Biomes ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB92-153022 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
14p |
| Abstract |
Increased rates of soil organic matter decomposition may represent a significant positive feedback to global warming. As a step towards assessing the potential magnitude of this response, an equilibrium analysis was performed in which representative carbon pools were associated with each vegetation type and the Holdridge vegetation/climate correlation system was used to compare distributions of the vegetation types under the current climate and doubled-CO2 climate scenarios from four general circulation models (GCMs). Two of the GCMs predicted a net loss of belowground carbon (55-101 Pg) because of large decreases in the areal extent of tundra and boreal ecosystems with high levels of belowground carbon storage. Vegetation redistribution projected under the other two GCMs would result in the accumulation of carbon (5-41 Pg) in the biosphere, however, this accumulation was driven primarily by an increase in the areal extent of tropical rain forests which is unlikely given constraints imposed by anthropogenic factors. Other considerations not treated by the equilibrium approach also support the likelihood of a transient pulse of carbon from the soil to the atmosphere. |
| Supplementary Notes |
Pub. in Proceedings of Carbon Cycling in Boreal Forest and Subarctic Ecosystems Workshop, OSU, Corvallis, OR., September 9-12, 1991. See also PB92-153006 and PB92-122787. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Symposium paper. |
| Category Codes |
48E; 57K; 57H; 55C; 68A |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
211524974 |
| Origin |
NTIS |
| Type |
CAT |
