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Carbon Cycling in Northern Peatlands, Volume 184

Andrew J. Baird (Editor), Lisa R. Belyea Belyea (Editor), Xavier Comas (Editor), A. S. Reeve (Editor), Lee D. Slater (Editor)
ISBN: 978-0-87590-449-8
299 pages
January 2009, American Geophysical Union
Carbon Cycling in Northern Peatlands, Volume 184 (0875904491) cover image
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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Preface
Lee 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 Prospects
Andrew 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 System
Lisa R. Belyea 5

Issues Related to Incorporating Northern Peatlands Into Global Climate Models
Steve 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" Models
A. J. Baird, L. R. Belyea, and P. J. Morris 37

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

Direct Human Impacts on the Peatland Carbon Sink
Jukka 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 Approach
A. Harris and R. G. Bryant 79

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

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

Partitioning Litter Mass Loss Into Carbon Dioxide and Methane in Peatland Ecosystems
M. 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 Significance
Paul H. Glaser and Jeffrey P. Chanton 145

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

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

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

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

Physical Controls on Ebullition Losses of Methane From Peatlands
Takeshi 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 Peatlands
Tim R. Moore 229

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

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

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

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

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

Index 299

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