Carbon-nitrogen interactions in terrestrial ecosystems in response to rising atmospheric carbon dioxide

Peter B. Reich, Bruce A Hungate, Yiqi Luo

Research output: Contribution to journalArticle

272 Citations (Scopus)

Abstract

Interactions involving carbon (C) and nitrogen (N) likely modulate terrestrial ecosystem responses to elevated atmospheric carbon dioxide (CO 2) levels at scales from the leaf to the globe and from the second to the century. In particular, response to elevated CO2 may generally be smaller at low relative to high soil N supply and, in turn, elevated CO 2 may influence soil N processes that regulate N availability to plants. Such responses could constrain the capacity of terrestrial ecosystems to acquire and store C under rising elevated CO2 levels. This review highlights the theory and empirical evidence behind these potential interactions. We address effects on photosynthesis, primary production, biogeochemistry, trophic interactions, and interactions with other resources and environmental factors, focusing as much as possible on evidence from long-term field experiments.

Original languageEnglish (US)
Pages (from-to)611-636
Number of pages26
JournalAnnual Review of Ecology, Evolution, and Systematics
Volume37
DOIs
StatePublished - 2006

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terrestrial ecosystem
carbon dioxide
ecosystem response
carbon
trophic interaction
nitrogen
biogeochemistry
primary production
photosynthesis
environmental factor
soil
primary productivity
resource
environmental factors
terrestrial ecosystems
leaves
field experiment
effect

Keywords

  • Biogeochemistry
  • Global change
  • Nitrogen
  • Photosynthesis
  • Stoichiometry

ASJC Scopus subject areas

  • Ecology

Cite this

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