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

doi:10.1007/BF00377129

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

Plant Science

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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 language	English (US)
Pages (from-to)	7-11
Number of pages	5
Journal	Oecologia
Volume	53
Issue number	1
DOIs	https://doi.org/10.1007/BF00377129
State	Published - Apr 1 1982

All Science Journal Classification (ASJC) codes

Ecology, Evolution, Behavior and Systematics

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10.1007/BF00377129

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

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.",

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AU - Mortensen, D. A.

AU - Peterson, K. M.

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N2 - 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.

AB - 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.

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

Abstract

All Science Journal Classification (ASJC) codes

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