排水造林对泥炭沼泽湿地碳循环的影响

摘要

Wetland plays an important role in global climate change , draining of wetland lowers the level of ground water , increases the thickness of aerobic soil , increases the emission rate of carbon dioxide ( CO2 ) while reducing that of methane (CH4), furthermore, affects the concentration of global greenhouse gas .This paper summarized the research progress of the effects of wetland draining for CO 2 , CH4 , N2 O and soil carbon stock , pointed out the direction of the research that should be strengthened , provided references for the research of wetland restoration and carbon management .%湿地在全球气候变化中扮演着重要作用，当湿地排水后，地表水位下降，湿地土壤有氧层增加，CO2排放速率增加，CH4排放速率减少，进而影响全球温室气体的浓度。本文综述了国内外有关湿地排水对土壤CO2、CH4、N2 O温室气体和土壤碳储量影响的研究进展，指出了应加强研究的方向，可为湿地恢复和碳管理的研究提供参考。