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Constraining the carbon budget of peat ecosystems : application of stoichiometry and enthalpy balances [dataset] Open Access

We consider how the stoichiometry and energy content of organic matter reservoirs and fluxes through and from a peatland enable the fluxes and storage of carbon within a peatland to be constrained. We include the elemental composition of the above- and below-ground biomass, litter, the peat profile, and the dissolved and particulate organic matter within a blanket bog in northern England for which the C budget has previously been measured. The study shows, based only on the elemental composition, and calculation of oxidation and energy contents, that: i) DOC in first-order streams is significantly more oxidised than in peat pore water but that there was no significant difference in organic carbon oxidation state down the peat profile; ii) The occurrence and speciation of N uptake and release in the peatland with N used and recycled can be predicted; iii) The relatively high oxidation state of DOC in stream water acts as an endpoint for peat-forming reactions; iv) Methanogenesis does not result in deep peat formation as it requirement for energy consumes too much organic matter to form residual peat at depth; v) Sulphate reduction does occur during the formation of deep peat; vi) Organic matter elemental composition could be constrained to within three bounding equations though the proportions of carbon species could not be specified. vii) The formation of deep peat in this catchment could only be achieved if the DOM in the peat pore water is the dominant electron acceptor and energy source in the production of residual organic matter; however, it is unclear as to the flux of DOM up or down the peat profile.

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Resource type
Dataset
Contributors
Creator: Worrall, Fred 1
Contact person: Worrall, Fred 1
Data collector: Worrall, Fred 1
Editor: Worrall, Fred 1
1 University of Durham, UK
Funder
Research methods
Other description
Keyword
Peat
Subject
Location
Language
Cited in
Identifier
ark:/32150/r1s7526c436
doi:10.15128/r1s7526c436
Rights
Creative Commons Attribution 4.0 International (CC BY)

Publisher
Durham University
Date Created

File Details

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J.S.J. Worrall
Date Uploaded
Date Modified
31 August 2022, 13:08:15
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File format: pdf (Portable Document Format)
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File size: 789872
Last modified: 2022:08:30 18:38:58+01:00
Filename: Constraining the carbon budget of peat ecosystems2_final_May22_Supplementary_Material.pdf
Original checksum: c8eda449e3a68072a26758f847c5e48e
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File author: Fred
Page count: 8
File language: en-GB
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User N. Syrotiuk has updated Constraining the carbon budget of peat ecosystems : application of stoichiometry and enthalpy balances [dataset] 5 months ago
User N. Syrotiuk has updated Constraining the carbon budget of peat ecosystems : application of stoichiometry and enthalpy balances [dataset] 5 months ago
User N. Syrotiuk has updated Constraining the carbon budget of peat ecosystems : application of stoichiometry and enthalpy balances [dataset] 5 months ago
User J.S.J. Worrall has updated Constraining the carbon budget of peat ecosystems2_final_May22_Supplementary_Material.pdf 5 months ago
User J.S.J. Worrall has deposited Constraining the carbon budget of peat ecosystems2_final_May22_Supplementary_Material.pdf 5 months ago