Element interactions limit soil carbon storage

Kees Jan Van Groenigen, Johan Six, Bruce A Hungate, Marie Anne De Graaff, Nico Van Breemen, Chris Van Kessel

Research output: Contribution to journalArticle

229 Citations (Scopus)

Abstract

Rising levels of atmospheric CO2 are thought to increase C sinks in terrestrial ecosystems. The potential of these sinks to mitigate CO 2 emissions, however, may be constrained by nutrients. By using metaanalysis, we found that elevated CO2 only causes accumulation of soil C when N is added at rates well above typical atmospheric N inputs. Similarly, elevated CO2 only enhances N2 fixation, the major natural process providing soil N input, when other nutrients (e.g., phosphorus, molybdenum, and potassium) are added. Hence, soil C sequestration under elevated CO2 is constrained both directly by N availability and indirectly by nutrients needed to support N2 fixation.

Original languageEnglish (US)
Pages (from-to)6571-6574
Number of pages4
JournalProceedings of the National Academy of Sciences of the United States of America
Volume103
Issue number17
DOIs
StatePublished - Apr 25 2006

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Nitrogen Fixation
Soil
Carbon
Food
Molybdenum
Carbon Monoxide
Phosphorus
Ecosystem
Potassium

Keywords

  • Global climate change
  • N fixation
  • Soil organic matter

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

Element interactions limit soil carbon storage. / Van Groenigen, Kees Jan; Six, Johan; Hungate, Bruce A; De Graaff, Marie Anne; Van Breemen, Nico; Van Kessel, Chris.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 103, No. 17, 25.04.2006, p. 6571-6574.

Research output: Contribution to journalArticle

Van Groenigen, KJ, Six, J, Hungate, BA, De Graaff, MA, Van Breemen, N & Van Kessel, C 2006, 'Element interactions limit soil carbon storage', Proceedings of the National Academy of Sciences of the United States of America, vol. 103, no. 17, pp. 6571-6574. https://doi.org/10.1073/pnas.0509038103
Van Groenigen, Kees Jan ; Six, Johan ; Hungate, Bruce A ; De Graaff, Marie Anne ; Van Breemen, Nico ; Van Kessel, Chris. / Element interactions limit soil carbon storage. In: Proceedings of the National Academy of Sciences of the United States of America. 2006 ; Vol. 103, No. 17. pp. 6571-6574.
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