Arctic tundra: A source or sink for atmospheric carbon dioxide in a changing environment?

W. D. Billings, J. O. Luken, D. A. Mortensen, K. M. Peterson

Research output: Contribution to journalArticlepeer-review

227 Scopus citations

Abstract

Intact cores from the wet coastal arctic tundra at Barrow, Alaska, were used as microcosms in the measurement of CO2 fluxes between peat, vegetation, and atmosphere under controlled conditions. Net ecosystem CO2 uptake was almost twice as high at present summer temperatures (4° C) than at 8°. Lowering the water table from the soil surface to -5 cm also had a pronounced effect in decreasing net ecosystem carbon storage. Warming of the tundra climate could change this ecosystem from a sink for atmospheric CO2 to a source.

Original languageEnglish (US)
Pages (from-to)7-11
Number of pages5
JournalOecologia
Volume53
Issue number1
DOIs
StatePublished - Apr 1 1982

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics

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