%0 Journal Article
%T Dynamics of CO2 and CH4 Concentration in the Mire Soil and Its Impact Factors<br>沼泽湿地生态系统土壤CO2和CH4排放动态及影响因素
%A SONG Chang chun
%A YANG Wen yan
%A XU Xiao feng
%A LOU Yan jing
%A ZHANG Jin bo
%A <br>宋长春
%A 杨文燕
%A 徐小锋
%A 娄彦景
%A 张金波
%J 环境科学
%D 2004
%I 
%X The wetland plays a important role in global carbon cycling in terrestrial ecosystem, the greenhouse gas emission in the mire, especially the CO2 and CH4 level, show distinctly spatial and temporal variation. The product and emission of the CO2 and CH4 are related to soil organic carbon (SOC), dissolved organic carbon (DOC) and nitrogen content, meanwhile which are affected by the soil temperature and hydrological condition. The concentration of CO2 and CH4 are high in mire soil in the Sanjiang plain, especial at the root layer (10-35cm). From the middle of September to October, the aboveground of plant came into die, but the CO2 and CH4 level increase significantly in mire soil, and show significantly positive relationship between them. The ecosystem respiration and the soil respiration affected the methane emission distinctly, also with the significantly positive relationship.
%K mire
%K soil profile
%K greenhouse gas
%K organic carbon
%K ecosystem respiration<br>沼泽湿地
%K 土壤
%K 温室气体
%K 有机碳
%K 生态系统呼吸
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=F8C3400A01A55E84&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=E158A972A605785F&sid=CA4FD0336C81A37A&eid=B31275AF3241DB2D&journal_id=0250-3301&journal_name=环境科学&referenced_num=34&reference_num=28