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采用动态箱法,在2010年5月和6月对松嫩平原莫莫格芦苇沼泽湿地和草甸湿地土壤CO2排放通量进行了对比观测。结果表明:莫莫格芦苇沼泽湿地和草甸湿地土壤CO2排放日变化曲线均呈单峰型,芦苇沼泽湿土壤CO2排放通量与地上15 cm空气温度呈显著正相关,而草甸湿地土壤CO2排放通量与地下5 cm温度的相关性更强;土壤水分仅影响草甸湿地土壤CO2排放通量;光合有效辐射对芦苇湿地和草甸湿地土壤CO2排放通量均有显著的影响。
The dynamic box method was used to compare the CO2 flux of soil from the Momoge reed marsh and meadow wetland in the Songnen Plain in May and June 2010. The results showed that the diurnal variation curves of CO2 emission in reeds marsh wetland and meadow wetland showed a single peak, and the CO2 fluxes of reed marsh wetland had a significant positive correlation with the air temperature above 15 cm, while that of meadow wetland CO2 The correlation between the discharge flux and the temperature below 5 cm is stronger. The soil moisture affects only the CO2 flux of the meadow wetland soil. The photosynthetic active radiation has a significant effect on the CO2 flux of the reed and meadow wetlands.