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Note: Contents Foreword Preface Contributors Chapter 1 Issues of Sampling Design in Wetlands / Monica Rivas Casado, Ron Corstanje, Pat Bellamy, and Ben Marchant DESIGN-BASED SAMPLING APPROACHES MODEL-BASED SAMPLING APPROACHES Chapter 2 Soil and Sediment Sampling of Inundated Environments / Todd Z. Osborne and R.D. DeLaune SAMPLING IN INUNDATED ENVIRONMENTS: SAMPLING PLAN AND GENERAL CONSIDERATIONS SAMPLING METHODS FOR INUNDATION DEPTHS LESS THAN 1.5 METERS SAMPLING METHODS FOR INUNDATION DEPTHS GREATER THAN 1.5 METERS SPECIAL CONDITIONS OR CONSIDERATIONS Chapter 3 Physicochemical Characterization of Wetland Soils / K.R. Reddy, M.W. Clark, R.D. DeLaune, and M. Kongchum SOIL SAMPLING PHYSICOCHEMICAL PROPERTIES CONCLUSIONS Chapter 4 Soil Pore Water Sampling Methods / M.M. Fisher and K.R. Reddy TECHNIQUES FOR SAMPLING SOIL PORE WATER SAMPLE HANDLING CONSIDERATIONS SAMPLING PORE WATER GASES SUMMARY Chapter 5 Reduction–Oxidation Potential and Oxygen / J. Patrick Megonigal and Martin Rabenhorst REDOX POTENTIAL THEORY OXYGEN MEASUREMENT WITH DIFFUSION CHAMBERS REDOX MEASUREMENT Chapter 6 Determination of Dissolved Oxygen, Hydrogen Sulfide, Iron(II), and Manganese(II) in Wetland Pore Waters / George W. Luther III and Andrew S. Madison EXPERIMENTAL PRINCIPLES OF ELECTRODE FABRICATION EXPERIMENTAL PRINCIPLES OF WORKING ELECTRODE CALIBRATIONS PROCEDURES FOR MICROPROFILING SUMMARY Chapter 7 Soil Redox Potential and pH Controllers / Kewei Yu and Jörg Rinklebe REDOX POTENTIAL AND pH CONTROL MODIFICATIONS AN AUTOMATED BIOGEOCHEMICAL MICROCOSM SYSTEM APPLICATIONS Chapter 8 Morphological Methods to Characterize Hydric Soils / M.J. Vepraskas EQUIPMENT METHODS AND TECHNIQUES FOR DESCRIBING HYDRIC SOILS FIELD TEST TO ASSESS SOIL MATERIAL TYPE IDENTIFYING HYDRIC SOIL FIELD INDICATORS Chapter 9 Emergent Macrophyte Biomass Production / Christopher Craft SAMPLING CONSIDERATIONS INDIRECT METHODS DIRECT METHODS EMERGING METHODS Chapter 10 Photosynthetic Measurements in Wetlands / S.R. Pezeshki OXYGEN EXCHANGE MEASUREMENT TECHNIQUE CARBON ISOTOPE TECHNIQUE MICROMETEOROLOGICAL TECHNIQUE CHLOROPHYLL FLUORESCENCE METHOD PHOTOSYNTHETIC MEASUREMENTS USING CHAMBERS SUMMARY Chapter 11 Gas Transport and Exchange through Wetland Plant Aerenchyma / Brian K. Sorrell and Hans Brix GENERAL PRINCIPLES EXPERIMENTAL PRINCIPLES LABORATORY AND GLASSHOUSE CHAMBERS MODELING APPROACHES Chapter 12 A Primer on Sampling Plant Communities in Wetlands / Curtis J. Richardson and Ryan S. King OVERVIEW OF SAMPLING PLANT POPULATIONS AND COMMUNITIES SAMPLE SIZE PLANT SAMPLING APPROACHES RAPID ASSESSMENT APPROACHES TO ESTIMATE PLANT ABUNDANCE AND COVER PERCENTAGE PLANT SAMPLING METHODS AND CALCULATION PROCEDURES ANALYSIS OF DATA COMPARISON OF PLANT COMMUNITIES SUGGESTIONS FOR DEVELOPING A PLANT SAMPLING PROGRAM APPENDIX Chapter 13 Plant Productivity—Bottomland Hardwood Forests / William H. Conner and Julia A. Cherry ABOVEGROUND PRODUCTIVITY BELOWGROUND PRODUCTIVITY Chapter 14 Current Methods to Evaluate Net Primary Production and Carbon Budgets in Mangrove Forests / Victor H. Rivera-Monroy, Edward Castañeda-Moya, Jordan G. Barr, Vic Engel, Jose D. Fuentes, Tiffany G. Troxler, Robert R. Twilley, Steven Bouillon, Thomas J. Smith III, and Thomas L. O’Halloran CURRENT METHODS TO ESTIMATE NET PRIMARY PRODUCTIVITY COMPARING MANGROVE NET PRIMARY PRODUCTION ESTIMATES TO WHOLE-FOREST CARBON FLUX MEASUREMENTS SUMMARY AND FUTURE RESEARCH DIRECTIONS APPENDIX Chapter 15 Characterization of Wetland Soil Organic Matter / Robert L. Cook and Thomas S. Bianchi SAMPLE TREATMENT AND PROCESSING SPECTROSCOPIC CHARACTERIZATION BULK ELEMENTAL AND CHEMICAL BIOMARKER ANALYSES SUMMARY Chapter 16 Dissolved Organic Matter / Robert G. Qualls EQUIPMENT AND INSTRUMENTATION MATERIALS AND REAGENTS SAMPLE PREPARATION PROCEDURES CONCLUSIONS Chapter 17 Soil Microbial Biomass and Phospholipid Fatty Acids / Jörg Rinklebe and Uwe Langer THE SUBSTRATE-INDUCED RESPIRATION METHOD PHOSPHOLIPID FATTY ACIDS ESTIMATES OF MICROBIAL BIOMASS SUMMARY Chapter 18 Molecular Genetic Analysis of Wetland Soils / Hee-Sung Bae and Andrew V. Ogram DNA EXTRACTION QUANTITATIVE POLYMERASE CHAIN REACTION POLYMERASE CHAIN REACTION BASED MOLECULAR CLONING Chapter 19 Enzyme Activities / Hojeong Kang, Seon-Young Kim, and Chris Freeman EQUIPMENT AND INSTRUMENTATION MATERIALS AND REAGENTS SAMPLE PREPARATION PROCEDURE CALCULATION SUMMARY Chapter 20 Organic Matter Mineralization and Decomposition / Scott D. Bridgham and Rongzhong Ye LITTER DECOMPOSITION DECOMPOSITION OF STANDARD SUBSTRATES SOIL HETEROTROPHIC RESPIRATION PHOTODEGRADATION Chapter 21 Methanogenesis and Methane Oxidation in Wetland Soils / Kanika S. Inglett, Jeffery P. Chanton, and Patrick W. Inglett EXPERIMENTAL METHANE MEASUREMENTS ISOTOPIC MEASUREMENTS OF METHANE Chapter 22 Greenhouse Gas Emission by Static Chamber and Eddy Flux Methods / Kewei Yu, April Hiscox, and R.D. DeLaune STATIC CHAMBER MEASUREMENT EDDY COVARIANCE MEASUREMENT SUMMARY Chapter 23 Characterization of Organic Nitrogen in Wetlands / C.M. VanZomeren, H. Knicker, W.T. Cooper, and K.R. Reddy CHEMICAL FRACTIONATION OF SOIL ORGANIC NITROGEN CHLOROFORM FUMIGATION METHOD NUCLEAR RESONANCE SPECTROSCOPY MASS SPECTROMETRY OF ORGANIC NITROGEN CONCLUSIONS Chapter 24 Measurements of Nitrogen Mineralization Potential in Wetland Soils / Eric D. Roy and John R. White POTENTIALLY MINERALIZABLE NITROGEN SUBSTRATE-INDUCED NITROGEN MINERALIZATION LIMITATIONS SUMMARY Chapter 25 Wind Tunnel Method for Measurement of Ammonia Volatilization / M.E. Poach, K.S. Ro, and P.G. Hunt EQUIPMENT AND INSTRUMENTATION MATERIALS AND REAGENTS SAMPLE PREPARATION PROCEDURE SAMPLE ANALYSIS CALCULATION STATISTICAL ANALYSIS QUALITY ASSURANCE SUMMARY Chapter 26 Ammonium Oxidation in Wetland Soils / K.S. Inglett, A.V. Ogram, and K.R. Reddy AEROBIC AMMONIUM OXIDATION (NITRIFICATION) ANAEROBIC AMMONIUM OXIDATION (ANAMMOX) METHODS FOR ASSESSING AEROBIC AMMONIUM OXIDATION (NITRIFICATION) METHODS FOR ASSESSING ANAEROBIC AMMONIUM OXIDATION (ANAMMOX) POTENTIAL MOLECULAR METHODS FOR ASSESSING AMMONIUM OXDIATION IN WETLAND SOILS SUMMARY Chapter 27 Denitrification Measurement Using Membrane Inlet Mass Spectrometry / Patrick W. Inglett, Todd M. Kana, and Soonmo An GENERAL PRINCIPLES EXPERIMENTAL PRINCIPLES ISOTOPE PAIRING BY THE MIMS METHOD SUMMARY Chapter 28 Nitrate Reduction, Denitrification, and Dissimilatory Nitrate Reduction to Ammonium in Wetland Sediments / Amy J. Burgin, Stephen K. Hamilton, Wayne S. Gardner, and Mark J. McCarthy EQUIPMENT AND INSTRUMENTATION MATERIALS AND REAGENTS PROCEDURES SAMPLE PREPARATION CALCULATIONS Chapter 29 System-Level Denitrification Measurement Based on Dissolved Gas Equilibration Theory and Membrane Inlet Mass Spectrometry / Andrew Laursen and Patrick W. Inglett GENERAL THEORY EXPERIMENTAL PRINCIPLES CALCULATIONS DISCUSSION AND LIMITATIONS SUMMARY Chapter 30 Biogeochemical Nitrogen Cycling in Wetland Ecosystems: Nitrogen-15 Isotope Techniques / Dries Huygens, Mark Trimmer, Tobias Rütting, Christoph Müller, Catherine M. Heppell, Katrina Lansdown, and Pascal Boeckx EXPERIMENTAL STUDY SETUPS ISOTOPE PAIRING AND REVISED ISOTOPE PAIRING TECHNIQUES ISOTOPE DILUTION AND TRACING TECHNIQUES Chapter 31 Biological Dinitrogen Fixation / Patrick W. Inglett ACETYLENE REDUCTION DINITROGEN-15 INCORPORATION SUMMARY Chapter 32 Methods for Soil Phosphorus Characterization and Analysis of Wetland Soils / Curtis J. Richardson and K.R. Reddy TERMINOLOGY, OPERATIONAL DEFINITIONS, AND COMPARISON OF PHOSPHORUS FORMS SAMPLE PREPARATION AND STORAGE SOIL PHOSPHORUS ANALYSIS PHOSPHORUS AVAILABILITY INDICES ANION EXCHANGE RESIN AND IRON OXIDE PAPER SOIL INORGANIC PHOSPHORUS FORMS GENERAL COMMENTS Chapter 33 Phosphorus Characterization in Wetland Soils by Solution Phosphorus-31 Nuclear Magnetic Resonance Spectroscopy / Alexander W. Cheesman, James Rocca, and Benjamin L. Turner BRIEF OVERVIEW OF THE PRINCIPLES APPLICATION TO WETLAND SOILS Chapter 34 Phosphorus Sorption and Desorption