稻田土壤甲烷与氧化亚氮的排放关系及其综合控制研究

Methane and nitrous oxide are important source of greenhouse gaseous, but the control put up obvious contradiction. To find out all-around control measurement of CH4 and N2O, the emission flaxes of CO2, CH4 and N2O were measured with incubation and pot experiment under different water regime. The microorganisms and their activity were monitored at the same time to explain the effective of water and fertilizer to the emission relationship between CH4 and N2O.

稻田土壤甲烷和氧化亚氮排放是大气温室气体的重要源之一，但其控制条件呈相反趋势。本项目通过对不同水分和施肟管理下土壤甲烷和氧化亚氮排放通量、土壤微生物和还原酶数量及活性的动态监测，研究水肥管理对甲烷和氧化亚氮排放关系的影响机制，为农田土壤甲烷和氧化亚氮的综合控制提供依据。该项目研究对减缓全球气候变暖、改善环境有重要意义