期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2011

37

4

356-360

10.3724/SP.J.1238.2011.00356

国家科技攻关计划项目（2008BAD95802） 湖南省自然科学基金项目（09JJ5011） 中国农业科学院研究生石生伟、中国农业大学研究生朱波、湖南农业大学研究生沈建凯、高文娟、龙攀等在气体取样与测定过程中给予了大力支持与帮助,谨致谢忱.

本校为第一机构

为比较不同水稻品种间甲烷和氧化亚氮排放的差异,采用圆柱体静止箱取样、气相色谱分析,测定了不同早、晚稻品种在不同生育期甲烷和氧化亚氮的排放通量,考察其与水稻植株特性的相关性。结果表明,早稻甲烷、氧化亚氮排放通量分别在抽穗期、孕穗期出现峰值;晚稻甲烷、氧化亚氮排放通量分别在拔节期、乳熟期出现峰值。不同水稻品种间甲烷和氧化亚氮排放通量差异显著,早稻分蘖数、根系干重与甲烷排放呈极显著正相关,根体积、地上部干重与氧化亚氮排放呈显著正相关;晚稻甲烷排放与根体积、根系干重呈极显著正相关,氧化亚氮排放与分蘖数、地上部干重呈极显著负相关;早稻常规品种单位产量温室气体增温潜...

To probe the mechanism of differences in CH4 and N2O emission among rice cultivars, this pot experiment was conduced to measure CH4 and N2O emission fluxes and plant characteristics of rice cultivars by static closed chamber method and gas chromatograph technique. The results showed that the maximum values of CH4 and N2O emission appeared at the heading stage and the booting stage respectively for the early rice. For the late rice, the maximum values of CH4 and N2O emission appeared at the shooting stage and the milky stage respectively The differences of CH4 and N2O emission among different c...