期刊论文

中文

农业环境科学学报

1672-2043

2008

27

6

2513-2517

10.3321/j.issn:1672-2043.2008.06.071

国家“十一五”科技支撑计划“国家粮食丰产科技工程”资助项目（2006BAD02A01）

本校为第一机构

应用静止箱取样技术观测了直播与移栽稻甲烷排放量，同时测定了根系生长活力，比较了两者的差异。结果表明,直播稻与移栽稻呈现相同的甲烷排放日变化与季节变化模式；基于本田生长期甲烷排放量比较，直播稻甲烷排放通量低于移栽稻，但甲烷排放总量高于移栽稻，两者差异显著（P〈0．05）.甲烷排放量与根系活力相关性分析表明，甲烷排放与根系活力、根系吸收能力呈显著正相关关系（P〈0．05）；根系活力对移栽稻全生育期甲烷排放影响较大，相关性达0．05水平，但直播稻并不显著；直播稻全生育期的甲烷排放通量与根系吸收能力呈显著正相关（P〈0．05），而移栽稻在生长中后期受根系吸收能力的影响较...

The methane emission flux was determined in paddy field of early and late rice under translating and direct sowing patterns, respectively, using the static box sampling technique in 2005 and 2006. The results analyzed on difference between the direct sowing rice （DSR） and the translating rice （TR） patterns were shown that, the methane emission under DSR and TR presented the same daily variation and seasonal law. The methane flux under DSR was significantly lower but the amount of methane emission under DSR was significantly greater than tha...