搜索结果: 1-4 共查到“地理学 CH4”相关记录4条 . 查询时间(0.187 秒)
Changing sources and processes sustaining surface CO2 and CH4 fluxes along a tropical river to reservoir system
CO2 CH4 surface flux lakes
2021/7/23
Freshwaters are important emitters of carbon dioxide (CO2) and methane (CH4), two potent greenhouse gases (GHGs).
Urban rivers are hotspots of riverine greenhouse gas (N2O, CH4, CO2) emissions in the mixed-landscape chaohu lake basin
Urban rivers greenhouse gas GHG Global warming
2021/7/27
Growing evidence shows that riverine networks surrounding urban landscapes may be hotspots of riverine greenhouse gas (GHG) emissions.
三江平原湿地CH4、N2O的地－气交换特征
2007/8/24
摘要：利用暗箱－气相色谱法对三江平原3种具有代表性的湿地类型（常年积水的毛果苔草沼泽、季节性积水的小叶章湿草甸和灌丛湿地）进行了为期两年的CH4和N2O现场同步观测。结果表明，湿地全年CH4和N2O通量有明显的季节和年际变化，与温度和土壤水分条件密切相关。在发生季节性干旱的年份，生长季（5月～10月）CH4排放通量峰值出现在6月和8月，呈双峰型; 而在降水充沛的年份，CH4...
Using static chamber technique, fluxes of CO2, CH4 and N2O were measured in the alpine grassland area from July 2000 to July 2001, determinations of mean fluxes showed that CO2 and N2O wer...