期刊论文

中文

水土保持学报

1009-2242

2013

27

6

298-304

10.3969/j.issn.1009-2242.2013.06.058

基金项目：国家科技支撑计划课题（2012BAD15804） 湖南省教育厅资助课题（11K034）

本校为第一机构

采用静态箱-气相色谱法测定水稻(Oryza sativa)生长期内不同有机无机肥配施条件下双季稻田CH_4、N_2O的排放量,并根据土壤有机碳库和植株碳素累积量的变化估算稻田CO_2净交换通量。结果表明:稻田CH_4与N_2O的排放之间存在消长关系,CH_4是稻田排放的主要温室气体。有机无机肥配施能有效促进稻田CH_4的排放和CO_2的固定,而对N_2O的排放并没有造成显著影响。各处理的综合增温潜势均为负值,表现为减缓温室效应的趋势,其中DF(猪粪堆肥+化肥)和ZYF(沼渣沼液肥+化肥)处理减缓综合温室效应的潜力较CF(纯化肥)处理分别提升了16.43%和5.89%。从全年稻季单位产量的GWP来看,DF、ZYF处理的单位产量全球增温潜...

The emissions of CH4 and N2O from paddy fields under different combined application of organic and inorganic fertilizers were measured by static chamber-gas chromatograph during growth period in 2012, and soil CO2 net flux was estimated with the changes of soil organic and plant carbon. The results showed that the emission of CH4 was negatively correlated with N2O. CH4 was the main greenhouse gas in paddy fields. Combined application of organic and inorganic fertilizers could promote the emission of CH4 and the fixation of CO2, but it had no si...