Global patterns of carbon dioxide emissions from soils on a 0.5-degree-grid-cell basis
Journal Article
·
· CDIAC Communications
OSTI ID:457022
- Iowa State Univ., Ames, IA (United States)
- NASA Ames Research Center, Moffett Field, CA (United States)
Semimechanistic, empirically based statistical models were used to predict the spatial (0.5-degree grid cells) and temporal (monthly and annual) patterns of global carbon emissions form terrestrial soils. Emissions include the respiration of both soil organisms and plant roots. Geographically referenced data of mean monthly air temperature and precipitation, soil organic carbon and nitrogen content, soil type and natural vegetation type were used in the model development. It was found that, at the global scale, the rates of soil CO{sub 2} efflux correlate significantly with temperature and precipitation, have a pronounced seasonal pattern in most locations, and contribute to observed wintertime increases in atmospheric CO{sub 2}.
- OSTI ID:
- 457022
- Journal Information:
- CDIAC Communications, Journal Name: CDIAC Communications Journal Issue: 22; ISSN 1053-1106; ISSN CDCOEX
- Country of Publication:
- United States
- Language:
- English
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