【作者】 胡玉琼； 王跃思；

【Author】 Hu Yuqiong Wang Yuesi(State Key Laboratory of Atmospheric Boundary LayerPhysics and Atmospheric Chemistry, Institute of Atmospheric Physics. Chinese Academy of Sciences. Beijing 100083)

【机构】 中科院大气物理所大气边界层物理和大气化学国家重点实验室；

【摘要】 采用静态箱-气相色谱法研究了内蒙古草原温室气体N₂O、CO₂、、CH₄与大气交换的日变化规律。CO₂日排放变化形式基本相同,和大气交换的总结果是向大气排放;影响草原N₂O排放日变化形式的关键是土壤含水量和表层土壤理化特性,日温变化主要影响日变化强度;影响草原CH₄日变化形式的关键因子是土壤水分和供氧状况,而温度和植物的生长状况则影响吸收强度。利用内蒙古草原温室气体排放相对固定的日变化形式,可以对四个生长季内各天每一时刻的观测结果,做出矫止,得到更准确和具代表性的数据。更多还原

【Abstract】 Static chamber-gas chromatographic techniques were used for studying the release of Greenhouse gases CO2, CH4 and N2O from Inner Mongolia semi-arid typical grassland . The pattern of CO2 diurnal variation in different seasons is almost the same, and the total effects of CO2 release into atmosphere is a source. The key factors that decide the patterns of N2O and CH4 is soil physical properties and soil water content, and temperature determines the intensity of diurnal variation. Because of the nearly fixed pattern of Greenhouse gases from Mongolia Grassland . we make corrections to observation results, and the data could be more accurate representative.更多还原