Table of Contents

Résumé-Synthèse.- Analytical Techniques for Measuring Fluxes of CO2 and CH4 from Hydroelectric Reservoirs and Natural Water Bodies.- Development and Use of an Experimental near Infrared Open Path Diode Laser Prototype for Continuous Measurement of CO2 and CH4 Fluxes from Boreal Hydro Reservoirs and Lakes.- Greenhouse Gas Fluxes (CO2, CH4 and N2O) in Forests and Wetlands of Boreal, Temperate and Tropical Regions.- Diffuse Flux of Greenhouse Gases — Methane and Carbon Dioxide — at the Sediment-Water Interface of Some Lakes and Reservoirs of the World.- Organic Carbon Densities of Soils and Vegetation of Tropical, Temperate and Boreal Forests.- Carbon Dioxide and Methane Emissions from Estuaries.- GHG Emissions from Boreal Reservoirs and Natural Aquatic Ecosystems.- CO2 Emissions from Semi-Arid Reservoirs and Natural Aquatic Ecosystems.- A Comparison of Carbon Dioxide Net Production in Three Flooded Uplands (FLUDEX, 1999–2002) and a Flooded Wetland (ELARP, 1991–2002) Using a Dynamic Model.- Gross Greenhouse Gas Emissions from Brazilian Hydro Reservoirs.- Long Term Greenhouse Gas Emissions from the Hydroelectric Reservoir of Petit Saut (French Guiana) and Potential Impacts.- Production of GHG from the Decomposition of in vitro Inundated Phytomass and Soil.- Diffusive CO2 Flux at the Air-Water Interface of the Robert-Bourassa Hydroelectric Reservoir in Northern Québec : Isotopic Approach (13C).- The Use of Carbon Mass Budgets and Stable Carbon Isotopes to Examine Processes Affecting CO2 and CH4 Production in the Experimental FLUDEX Reservoirs.- Mass Balance of Organic Carbon in the Soils of Forested Watersheds from Northeastern North America.- Planktonic Community Dynamics over Time in a Large Reservoir and their Influence on Carbon Budgets.- Production andConsumption of Methane in Soil, Peat, and Sediments from a Hydro-Electric Reservoir (Robert-Bourassa) and Lakes in the Canadian Taiga.- Bacterial Activity in the Water Column and its Impact on the CO2 Efflux.- Production-Consumption of CO2 in Reservoirs and Lakes in Relation to Plankton Metabolism.- Impacts of Ultraviolet Radiation on Aquatic Ecosystems: Greenhouse Gas Emissions and Implications for Hydroelectric Reservoirs.- Impact of Methane Oxidation in Tropical Reservoirs on Greenhouse Gases Fluxes and Water Quality.- Using Gas Exchange Estimates to Determine Net Production of CO2 in Reservoirs and Lakes.- A One-Dimensional Model for Simulating the Vertical Transport of Dissolved CO2 and CH4 in Hydroelectric Reservoirs.- Modelling the GHG emission from hydroelectric reservoirs.- Synthesis.