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| 施氮量及抑制剂配比对双季稻生长期温室气体排放的影响 | |
| 引用本文： | 刘昭兵,纪雄辉,彭华,石丽红,田发祥,石生伟.施氮量及抑制剂配比对双季稻生长期温室气体排放的影响[J].生态环境,2010,19(4):919-925. |
| 作者姓名： | 刘昭兵 纪雄辉 彭华 石丽红 田发祥 石生伟 |
| 作者单位： | 1. 湖南省农业科学院土壤肥料研究所,湖南,长沙,410125;湖南省农业科学院农业环境研究中心,湖南,长沙,410125 2. 湖南省农业科学院土壤肥料研究所,湖南,长沙,410125;中南大学研究生院隆平分院,湖南,长沙,410125 3. 中国农业科学院农业环境与可持续发展研究所,北京,100081 |
| 摘 要： | 采用静态箱-气相色谱法研究了南方稻田不同施氮量及抑制剂配比对双季稻生长期内CH4、N2O和CO2排放的影响。结果表明,双季稻田施氮与抑制剂配合施用的CH4、N2O和CO2总排放量明显低于对照（常规施肥）,其中CH4总排放量降低了7.6%～36.4%,N2O降低了25.8%～29.9%,CO2降低了17.7%～30.4%。早稻收获后各处理土壤NH4^＋-N和NO3^--N含量存在明显差异,添加抑制剂处理的土壤NH4^＋-N含量均高于对照,增幅为25.1%～77.0%,土壤NO3^--N以早稻移栽前基施N 240 kg·hm^-2配合12‰NAM和晚稻追施N 30 kg·hm^-2的处理比对照降低了61.8%（P﹤0.05）,而基施N 330 kg·hm^-2配合8‰NAM处理可能因早稻施氮过量反而高于对照。表明合理的施氮量及抑制剂添加比例能有效提高土壤中NH4^＋-N含量,减少NO3^--N残留,从而达到降低双季稻期间稻田温室气体排放的效果,为进一步利用抑制剂（NAM）与N、P、K化肥合理配比并形成复配肥,构建南方双季稻田温室气体减排的新型施肥模式提供技术支撑。 |
| 关 键 词： | 施氮量 抑制剂 双季稻 温室气体 |
Effects of nitrogen amount and inhibitor ratio on greenhouse gas emission during double-rice growing season |
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| LIU Zhaobing,JI Xionghui,PENG hua,SHI Lihong,TIAN Faxiang,SHI Shengwei.Effects of nitrogen amount and inhibitor ratio on greenhouse gas emission during double-rice growing season[J].Ecology and Environmnet,2010,19(4):919-925. | |
| Authors: | LIU Zhaobing JI Xionghui PENG hua SHI Lihong TIAN Faxiang SHI Shengwei |
| Institution: | LIU Zhaobing1,2,JI Xionghui1,PENG hua1,SHI Lihong1,TIAN Faxiang1,3,SHI Shengwei4 1.Soil , Fertilizer Institute,Hunan Academy of Agricultural Sciences,Changsha 410125,China,2.Agriculture , Environment Research Center,3.Longping Branch of Graduate School of Central South University,4.Institute of Agro-Environment , Sustainable Development,Chinese Academy of Agriculture Sciences,Beijing 100081 |
| Abstract: | The effects of different amount of nitrogen and proportion of inhibitor on CH4,N2O and CO2 emissions from paddy field in Southern China was studied by using static chamber and modified gas chromatograph(Agilent 7890A) during double-rice growing season.The results showed that total CH4,N2O and CO2 emissions from paddy field for application combining nitrogen with inhibitors were significantly lower than the control(conventional fertilization) during double-rice growing season,which the total CH4 emissions wa... |
| Keywords: | nitrogen amount inhibitor double-rice greenhouse gas |
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