The effect of peat structure on the spatial distribution of biogenic gases within bogs

Research output: Contribution to journalArticlepeer-review

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The effect of peat structure on the spatial distribution of biogenic gases within bogs. / Comas, Xavier; Kettridge, Nicholas; Binley, Andrew; Slater, Lee; Parsekian, Andrew; Baird, Andy J.; Strack, Maria; Waddington, James M.

In: Hydrological Processes, Vol. 28, No. 22, 07.10.2014, p. 5483-5494.

Research output: Contribution to journalArticlepeer-review

Harvard

Comas, X, Kettridge, N, Binley, A, Slater, L, Parsekian, A, Baird, AJ, Strack, M & Waddington, JM 2014, 'The effect of peat structure on the spatial distribution of biogenic gases within bogs', Hydrological Processes, vol. 28, no. 22, pp. 5483-5494. https://doi.org/10.1002/hyp.10056

APA

Comas, X., Kettridge, N., Binley, A., Slater, L., Parsekian, A., Baird, A. J., Strack, M., & Waddington, J. M. (2014). The effect of peat structure on the spatial distribution of biogenic gases within bogs. Hydrological Processes, 28(22), 5483-5494. https://doi.org/10.1002/hyp.10056

Vancouver

Author

Comas, Xavier ; Kettridge, Nicholas ; Binley, Andrew ; Slater, Lee ; Parsekian, Andrew ; Baird, Andy J. ; Strack, Maria ; Waddington, James M. / The effect of peat structure on the spatial distribution of biogenic gases within bogs. In: Hydrological Processes. 2014 ; Vol. 28, No. 22. pp. 5483-5494.

Bibtex

@article{69e10e6265d544c38999c5b3cb2c79ab,
title = "The effect of peat structure on the spatial distribution of biogenic gases within bogs",
abstract = "Northern peatlands are a large source of atmospheric methane (CH4) and both a source and a sink of atmospheric carbon dioxide (CO2). The rate and temporal variability in gas exchanges with peat soils is directly related to the spatial distribution of these free-phase gases within the peat column. In this paper, we present results from surface and borehole ground-penetrating radar surveys - constrained with direct soil and gas sampling - that compare the spatial distribution of gas accumulations in two raised bogs: one in Wales (UK), the other in Maine (USA). Although the two peatlands have similar average thickness, physical properties of the peat matrix differ, particularly in terms of peat type and degree of humification. We hypothesize that these variations in physical properties are responsible for the differences in gas distribution between the two peatlands characterized by (1) gas content up to 10.8% associated with woody peat and presence of wood layers in Caribou Bog (Maine) and (2) a more homogenous distribution with gas content up to 5.7% at the surface (i.e. <0.5m deep) in Cors Fochno (Wales). Our results highlight the variability in biogenic gas accumulation and distribution across peatlands and suggest that the nature of the peat matrix has a key role in defining how biogenic gas accumulates within and is released to the atmosphere from peat soils.",
keywords = "Carbon cycle, Geophysics, Peatlands",
author = "Xavier Comas and Nicholas Kettridge and Andrew Binley and Lee Slater and Andrew Parsekian and Baird, {Andy J.} and Maria Strack and Waddington, {James M.}",
year = "2014",
month = oct,
day = "7",
doi = "10.1002/hyp.10056",
language = "English",
volume = "28",
pages = "5483--5494",
journal = "Hydrological Processes",
issn = "0885-6087",
publisher = "Wiley",
number = "22",

}

RIS

TY - JOUR

T1 - The effect of peat structure on the spatial distribution of biogenic gases within bogs

AU - Comas, Xavier

AU - Kettridge, Nicholas

AU - Binley, Andrew

AU - Slater, Lee

AU - Parsekian, Andrew

AU - Baird, Andy J.

AU - Strack, Maria

AU - Waddington, James M.

PY - 2014/10/7

Y1 - 2014/10/7

N2 - Northern peatlands are a large source of atmospheric methane (CH4) and both a source and a sink of atmospheric carbon dioxide (CO2). The rate and temporal variability in gas exchanges with peat soils is directly related to the spatial distribution of these free-phase gases within the peat column. In this paper, we present results from surface and borehole ground-penetrating radar surveys - constrained with direct soil and gas sampling - that compare the spatial distribution of gas accumulations in two raised bogs: one in Wales (UK), the other in Maine (USA). Although the two peatlands have similar average thickness, physical properties of the peat matrix differ, particularly in terms of peat type and degree of humification. We hypothesize that these variations in physical properties are responsible for the differences in gas distribution between the two peatlands characterized by (1) gas content up to 10.8% associated with woody peat and presence of wood layers in Caribou Bog (Maine) and (2) a more homogenous distribution with gas content up to 5.7% at the surface (i.e. <0.5m deep) in Cors Fochno (Wales). Our results highlight the variability in biogenic gas accumulation and distribution across peatlands and suggest that the nature of the peat matrix has a key role in defining how biogenic gas accumulates within and is released to the atmosphere from peat soils.

AB - Northern peatlands are a large source of atmospheric methane (CH4) and both a source and a sink of atmospheric carbon dioxide (CO2). The rate and temporal variability in gas exchanges with peat soils is directly related to the spatial distribution of these free-phase gases within the peat column. In this paper, we present results from surface and borehole ground-penetrating radar surveys - constrained with direct soil and gas sampling - that compare the spatial distribution of gas accumulations in two raised bogs: one in Wales (UK), the other in Maine (USA). Although the two peatlands have similar average thickness, physical properties of the peat matrix differ, particularly in terms of peat type and degree of humification. We hypothesize that these variations in physical properties are responsible for the differences in gas distribution between the two peatlands characterized by (1) gas content up to 10.8% associated with woody peat and presence of wood layers in Caribou Bog (Maine) and (2) a more homogenous distribution with gas content up to 5.7% at the surface (i.e. <0.5m deep) in Cors Fochno (Wales). Our results highlight the variability in biogenic gas accumulation and distribution across peatlands and suggest that the nature of the peat matrix has a key role in defining how biogenic gas accumulates within and is released to the atmosphere from peat soils.

KW - Carbon cycle

KW - Geophysics

KW - Peatlands

UR - http://www.scopus.com/inward/record.url?scp=84884225785&partnerID=8YFLogxK

U2 - 10.1002/hyp.10056

DO - 10.1002/hyp.10056

M3 - Article

VL - 28

SP - 5483

EP - 5494

JO - Hydrological Processes

JF - Hydrological Processes

SN - 0885-6087

IS - 22

ER -