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Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

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Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon. / Evans, C.D.; Page, S.E.; Jones, T. et al.
Yn: Global Biogeochemical Cycles, Cyfrol 28, Rhif 11, 13.11.2014, t. 1215-1234.

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

HarvardHarvard

Evans, CD, Page, SE, Jones, T, Moore, S, Gauci, V, Laiho, R, Hruska, J, Allot, TE, Billet, MF, Tipping, E, Freeman, C & Garnett, MH 2014, 'Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon', Global Biogeochemical Cycles, cyfrol. 28, rhif 11, tt. 1215-1234. https://doi.org/10.1002/2013GB004782

APA

Evans, C. D., Page, S. E., Jones, T., Moore, S., Gauci, V., Laiho, R., Hruska, J., Allot, T. E., Billet, M. F., Tipping, E., Freeman, C., & Garnett, M. H. (2014). Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon. Global Biogeochemical Cycles, 28(11), 1215-1234. https://doi.org/10.1002/2013GB004782

CBE

Evans CD, Page SE, Jones T, Moore S, Gauci V, Laiho R, Hruska J, Allot TE, Billet MF, Tipping E, et al. 2014. Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon. Global Biogeochemical Cycles. 28(11):1215-1234. https://doi.org/10.1002/2013GB004782

MLA

Evans, C.D. et al. "Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon". Global Biogeochemical Cycles. 2014, 28(11). 1215-1234. https://doi.org/10.1002/2013GB004782

VancouverVancouver

Evans CD, Page SE, Jones T, Moore S, Gauci V, Laiho R et al. Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon. Global Biogeochemical Cycles. 2014 Tach 13;28(11):1215-1234. doi: 10.1002/2013GB004782

Author

Evans, C.D. ; Page, S.E. ; Jones, T. et al. / Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon. Yn: Global Biogeochemical Cycles. 2014 ; Cyfrol 28, Rhif 11. tt. 1215-1234.

RIS

TY - JOUR

T1 - Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon

AU - Evans, C.D.

AU - Page, S.E.

AU - Jones, T.

AU - Moore, S.

AU - Gauci, V.

AU - Laiho, R.

AU - Hruska, J.

AU - Allot, T.E.

AU - Billet, M.F.

AU - Tipping, E.

AU - Freeman, C.

AU - Garnett, M.H.

PY - 2014/11/13

Y1 - 2014/11/13

N2 - Carbon sequestration and storage in peatlands rely on consistently high water tables. Anthropogenic pressures including drainage, burning, land conversion for agriculture, timber, and biofuel production, cause loss of pressures including drainage, burning, land conversion for agriculture, timber, and biofuel production, cause loss of peat-forming vegetation and exposure of previously anaerobic peat to aerobic decomposition. This can shift peatlands from net CO2 sinks to large CO2 sources, releasing carbon held for millennia. Peatlands also export significant quantities of carbon via fluvial pathways, mainly as dissolved organic carbon (DOC). We analyzed radiocarbon (14C) levels of DOC in drainage water from multiple peatlands in Europe and Southeast Asia, to infer differences in the age of carbon lost from intact and drained systems. In most cases, drainage led to increased release of older carbon from the peat profile but with marked differences related to peat type. Very low DOC-14C levels in runoff from drained tropical peatlands indicate loss of very old (centuries to millennia) stored peat carbon. High-latitude peatlands appear more resilient to drainage; 14C measurements from UK blanket bogs suggest that exported DOC remains young (500 year) carbon in high-latitude systems. Rewetting at least partially offsets drainage effects on DOC age.

AB - Carbon sequestration and storage in peatlands rely on consistently high water tables. Anthropogenic pressures including drainage, burning, land conversion for agriculture, timber, and biofuel production, cause loss of pressures including drainage, burning, land conversion for agriculture, timber, and biofuel production, cause loss of peat-forming vegetation and exposure of previously anaerobic peat to aerobic decomposition. This can shift peatlands from net CO2 sinks to large CO2 sources, releasing carbon held for millennia. Peatlands also export significant quantities of carbon via fluvial pathways, mainly as dissolved organic carbon (DOC). We analyzed radiocarbon (14C) levels of DOC in drainage water from multiple peatlands in Europe and Southeast Asia, to infer differences in the age of carbon lost from intact and drained systems. In most cases, drainage led to increased release of older carbon from the peat profile but with marked differences related to peat type. Very low DOC-14C levels in runoff from drained tropical peatlands indicate loss of very old (centuries to millennia) stored peat carbon. High-latitude peatlands appear more resilient to drainage; 14C measurements from UK blanket bogs suggest that exported DOC remains young (500 year) carbon in high-latitude systems. Rewetting at least partially offsets drainage effects on DOC age.

U2 - 10.1002/2013GB004782

DO - 10.1002/2013GB004782

M3 - Article

VL - 28

SP - 1215

EP - 1234

JO - Global Biogeochemical Cycles

JF - Global Biogeochemical Cycles

SN - 0886-6236

IS - 11

ER -