Table of Contents
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
