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Rising Atmospheric CO2 Reduces Sequestration of Root-Derived Soil Carbon.
- Source :
-
Science . 9/9/2005, Vol. 309 Issue 5741, p1711-1713. 3p. 6 Graphs. - Publication Year :
- 2005
-
Abstract
- Forests have a key role as carbon sinks, which could potentially mitigate the continuing increase in atmospheric carbon dioxide concentration and associated climate change. We show that carbon dioxide enrichment, although causing short-term growth stimulation in a range of European tree species, also leads to an increase in soil microbial respiration and a marked decline in sequestration of root-derived carbon in the soil. These findings indicate that, should similar processes operate in forest ecosystems, the size of the annual terrestrial carbon sink may be substantially reduced, resulting in a positive feedback on the rate of increase in atmospheric carbon dioxide concentration. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00368075
- Volume :
- 309
- Issue :
- 5741
- Database :
- Academic Search Index
- Journal :
- Science
- Publication Type :
- Academic Journal
- Accession number :
- 18301894
- Full Text :
- https://doi.org/10.1126/science.1110700