土壤有机质含量是影响CH4产生的最重要土壤性质 .土壤CH4氧化能力与包括活性碳、有机碳和全氮含量在内的土壤理化性质之间都不存在显著相关性 .非水稻生长期较高的水分含量能促进水稻生长季节CH4的产生、氧化和排放 .在影响稻田CH4排放大尺度空间变异性的主要因素中 ,土壤水分历史可能比土壤性质更为重要 .结果表明 ,非水稻生长期土壤水分对水稻生长期CH4产生、氧化和排放具有极其重要的控制和调节作用 Soil organic matter content is the most important soil property that affects CH4 production.No significant correlation was found between the soil CH4 oxidation capacity and the soil physical and chemical properties including the contents of activated carbon, organic carbon and total nitrogen content.Non-rice growth stage Moisture content can promote the generation, oxidation and emission of CH4 during the growing season of rice.In the main factors affecting large-scale spatial variability of CH4 emissions in paddy field, the history of soil moisture may be more important than the soil properties.The results showed that soil moisture It plays an extremely important role in controlling and regulating the production, oxidation and emission of CH4 in rice growth period