Increased soil emissions of potent greenhouse gases under increased atmospheric CO 2

Kees Jan Van Groenigen, Craig W. Osenberg, Bruce A Hungate

Research output: Contribution to journalArticle

199 Citations (Scopus)

Abstract

Increasing concentrations of atmospheric carbon dioxide (CO 2) can affect biotic and abiotic conditions in soil, such as microbial activity and water content. In turn, these changes might be expected to alter the production and consumption of the important greenhouse gases nitrous oxide (N 2O) and methane (CH 4) (refs 2, 3). However, studies on fluxes of N 2O and CH 4from soil under increased atmosphericCO 2have not been quantitatively synthesized.Hereweshow, using meta-analysis, that increased CO 2(ranging from 463 to 780 parts per million by volume) stimulates both N 2O emissions from upland soils and CH 4emissions from rice paddies and natural wetlands. Because enhanced greenhouse-gas emissions add to the radiative forcing of terrestrial ecosystems, these emissions are expected to negate at least 16.6 per cent of the climate change mitigation potential previously predicted froman increase in the terrestrial carbon sink under increased atmospheric CO 2concentrations4. Our results therefore suggest that the capacity of land ecosystems to slow climate warming has been overestimated.

Original languageEnglish (US)
Pages (from-to)214-216
Number of pages3
JournalNature
Volume475
Issue number7355
DOIs
StatePublished - Jul 14 2011

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Carbon Monoxide
Soil
Gases
Ecosystem
Carbon Sequestration
Wetlands
Climate Change
Methane
Nitrous Oxide
Climate
Carbon Dioxide
Meta-Analysis
Water

ASJC Scopus subject areas

  • General

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Increased soil emissions of potent greenhouse gases under increased atmospheric CO 2 . / Van Groenigen, Kees Jan; Osenberg, Craig W.; Hungate, Bruce A.

In: Nature, Vol. 475, No. 7355, 14.07.2011, p. 214-216.

Research output: Contribution to journalArticle

Van Groenigen, Kees Jan ; Osenberg, Craig W. ; Hungate, Bruce A. / Increased soil emissions of potent greenhouse gases under increased atmospheric CO 2 In: Nature. 2011 ; Vol. 475, No. 7355. pp. 214-216.
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