Carbon Cycling in Northern Peatlands. Geophysical Monograph Series

  • ID: 2489232
  • Book
  • 300 Pages
  • John Wiley and Sons Ltd
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Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 184.

Carbon Cycling in Northern Peatlands examines the role that northern peatlands play in regulating the atmospheric carbon budget. It summarizes current research in four interconnected areas: large–scale peatland dynamics and carbon cycling; plant and microbial dynamics and their effect on carbon fluxes to the atmosphere; methane accumulation in, and loss from, peatlands; and water and dissolved carbon fluxes through peatlands. The volume highlights include
  • A thorough assessment of the challenges involved in incorporating carbon cycling in northern peatlands into global climate models;
  • A conceptual model to examine the partitioning of terminal carbon mineralization into production of CO2 and CH4;
  • A comprehensive review of the evidence for the accumulation of methane in deep and shallow peat; and
  • A description of the hydrologic changes induced by peat harvesting and associated challenges in restoring altered peatlands to their natural hydrologic regime.

Carbon Cycling in Northern Peatlands will be of interest to research scientists and graduate and undergraduate students, particularly those who wish to know more about the role of peatlands in the global carbon cycle and their role as modifiers of climate.

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PrefaceLee D. Slater, Andrew J. Baird, Lisa R. Belyea, Xavier Comas, and A. S. Reeve vii

Understanding Carbon Cycling in Northern Peatlands: Recent Developments and Future ProspectsAndrew J. Baird, Xavier Comas, Lee D. Slater, Lisa R. Belyea, and A. S. Reeve 1

Section I: Large–Scale Peatland Dynamics and Carbon Cycling

Nonlinear Dynamics of Peatlands and Potential Feedbacks on the Climate SystemLisa R. Belyea 5

Issues Related to Incorporating Northern Peatlands Into Global Climate ModelsSteve Frolking, Nigel Roulet, and David Lawrence 19

Upscaling of Peatland–Atmosphere Fluxes of Methane: Small–Scale Heterogeneity in Process Rates and the Pitfalls of "Bucket–and–Slab" ModelsA. J. Baird, L. R. Belyea, and P. J. Morris 37

Sensitivity of Northern Peatland Carbon Dynamics to Holocene Climate ChangeZicheng Yu, David W. Beilman, and Miriam C. Jones 55

Direct Human Impacts on the Peatland Carbon SinkJukka Laine, Kari Minkkinen, and Carl Trettin 71

Section II: Near–Surface Processes of Peatland Carbon Cycling

Northern Peatland Vegetation and the Carbon Cycle: A Remote Sensing ApproachA. Harris and R. G. Bryant 79

Plant Litter Decomposition and Nutrient Release in PeatlandsLuca Bragazza, Alexandre Buttler, Andy Siegenthaler, and Edward A. D. Mitchell 99

Microbial Community Structure and Carbon Substrate Use in Northern PeatlandsRebekka R. E. Artz 111

Partitioning Litter Mass Loss Into Carbon Dioxide and Methane in Peatland EcosystemsM. Nilsson and M. Öquist 131

Section III: Methane Accumulation in, and Loss From, Peatlands

Methane Accumulation and Release From Deep Peat: Measurements, Conceptual Models, and Biogeochemical SignificancePaul H. Glaser and Jeffrey P. Chanton 145

Noninvasive Field–Scale Characterization of Gaseous–Phase Methane Dynamics in Peatlands Using the Ground–Penetrating Radar MethodXavier Comas and Lee D. Slater 159

Methane Dynamics in Peat: Importance of Shallow Peats and a Novel Reduced–Complexity Approach for Modeling EbullitionT. J. Coulthard, A. J. Baird, J. Ramirez, and J. M. Waddington 173

The Stable Carbon Isotope Composition of Methane Produced and Emitted From Northern PeatlandsEdward R. C. Hornibrook 187

Laboratory Investigations of Methane Buildup in, and Release From, Shallow PeatsMikhail Mastepanov and Torben R. Christensen 205

Physical Controls on Ebullition Losses of Methane From PeatlandsTakeshi Tokida, Tsuyoshi Miyazaki, and Masaru Mizoguchi 219

Section IV: Water and Dissolved Carbon Transfers Within and From Peatlands

Dissolved Organic Carbon Production and Transport in Canadian PeatlandsTim R. Moore 229

Hydrological Controls on Dissolved Organic Carbon Production and Release From UK PeatlandsNathalie Fenner, Chris Freeman, and Fred Worrall 237

The Role of Natural Soil Pipes in Water and Carbon Transfer in and From PeatlandsJ. Holden, R. P. Smart, P. J. Chapman, A. J. Baird, and M. F. Billett 251

Improving Conceptual Models of Water and Carbon Transfer Through PeatJeffrey M. McKenzie, Donald I. Siegel, and Donald O. Rosenberry 265

Water Relations in Cutover PeatlandsJonathan S. Price and Scott J. Ketcheson 277

The Influence of Permeable Mineral Lenses on Peatland HydrologyA. S. Reeve, Z. D. Tyczka, X. Comas, and L. D. Slater 289

Index 299

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Andrew J. Baird
Lisa R. Belyea Belyea
Xavier Comas
A. S. Reeve
Lee D. Slater
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