Authors
Charles W Rice, Fernando O Garcia, Colleen O Hampton, Clenton E Owensby
Publication date
1995
Journal
Belowground Responses to Rising Atmospheric CO 2: Implications for Plants, Soil Biota, and Ecosystem Processes: Proceedings of a workshop held at the University of Michigan Biological Station, Pellston, Michigan, USA, May 29–June 2, 1993
Pages
67-74
Publisher
Springer Netherlands
Description
Terrestrial responses to increasing atmospheric CO2 are important to the global carbon budget. Increased plant production under elevated CO2 is expected to increase soil C which may induce N limitations. The objectives of this study were to determine the effects of increased CO2 on 1) the amount of carbon and nitrogen stored in soil organic matter and microbial biomass and 2) soil microbial activity. A tallgrass prairie ecosystem was exposed to ambient and twice-ambient CO2 concentrations in open-top chambers in the field from 1989 to 1992 and compared to unchambered ambient CO2 during the entire growing season. During 1990 and 1991, N fertilizer was included as a treatment. The soil microbial response to CO2 was measured during 1991 and 1992. Soil organic C and N were not significantly affected by enriched atmospheric CO2. The response of microbial biomass to CO2 enrichment was …
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Scholar articles
CW Rice, FO Garcia, CO Hampton, CE Owensby - Belowground Responses to Rising Atmospheric CO 2 …, 1995