Chapter 1 Methane is an Important Greenhouse Gas 1.1 Methane as an Important Greenhouse Gas 1.2 Methane Emission Processes in Wetlands 1.3 Wetlands as an Important Source of Methane 1.4 Briefly Advances in Studies about Methane Emissions from Wetlands in China 1.5 Zoige Alpine Wetlands and Methane Emissions 1.6 Three Gorges Reservoir and Methane Emissions 1.7 Objectives References Chapter 2 Methane Emissions from Zoige Alpine Wetlands 2.1 Diurnal Variation of Methane Emissions from an Alpine Wetland 2.1.1 Introduction 2.1.2 Materials and Methods 2.1.3 Results 2.1.4 Discussion 2.1.5 Conclusions 2.2 Determinants Influencing Seasonal Variations of Methane Emissions from Alpine Wetlands in Zoige Plateau and Their Implications 2.2.1 Introduction 2.2.2 Materials and Methods 2.2.3 Results 2.2.4 Discussion 2.2.5 Conclusions 2.3 Spatial Variations on Methane Emissions from Zoige Alpine Wetlands 2.3.1 Introduction 2.3.2 Materials and Methods 2.3.3 Results 2.3.4 Discussion 2.3.5 Conclusions ……