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| Titel |
Regional uptake and release of crop carbon in the United States |
| VerfasserIn |
T. O. West, V. Bandaru, C. C. Brandt, A. E. Schuh, S. M. Ogle |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 8, no. 8 ; Nr. 8, no. 8 (2011-08-03), S.2037-2046 |
| Datensatznummer |
250006068
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| Publikation (Nr.) |
 copernicus.org/bg-8-2037-2011.pdf |
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| Zusammenfassung |
| Carbon fixed by agricultural crops in the US creates regional CO2 sinks
where it is harvested and regional CO2 sources where it is released
back to the atmosphere. The quantity and location of these fluxes differ
depending on the annual supply and demand of crop commodities. Data on the
harvest of crop biomass, storage, import and export, and on the use of
biomass for food, feed, fiber, and fuel were compiled to estimate an annual
crop carbon budget for 2000 to 2008. With respect to US Farm Resource
Regions, net sources of CO2 associated with the consumption of crop
commodities occurred in the Eastern Uplands, Southern Seaboard, and Fruitful
Rim regions. Net sinks associated with the production of crop commodities
occurred in the Heartland, Northern Great Plains, and Mississippi Portal
regions. The national crop carbon budget was balanced to within 0.3 to
6.1 % yr−1 during the period of this analysis. |
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