| 玉米植株对大田温室气体N2O 排放的影响 |
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| 引用本文： | 黄国宏,陈冠雄,黄斌,吴杰.玉米植株对大田温室气体N2O 排放的影响[J].生态学杂志,1998,9(3):261-264. |
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| 作者姓名： | 黄国宏 陈冠雄 黄斌 吴杰 |
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| 作者单位： | 中国科学院沈阳应用生态研究所, 沈阳110015 |
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| 基金项目： | 国家自然科学基金(3977006);中国科学院陆地生态系统痕量物质生态过程开放实验室基金资助项目 |
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| 摘 要： | 利用封闭式箱法对玉米田N2O 排放通量的观测表明,大田种植玉米后,对N2O 排放产生了很大影响,玉米-土壤系统的N2O 排放通量大于不种玉米的土壤。此外,植物根系能明显促进土壤中N2O 的排放,特别是在玉米生长后期尤为明显。从播种开始到年底,施尿素导致N2O 排放为3.3kg·hm-2, 玉米植株为0.69kg·hm-2, 占总排放量的17.3%.
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| 关 键 词： | 玉米植株 N2O 排放通量 |
| 收稿时间： | 1998-02-23 |
Effect of maize plant on N2O emission from field |
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| Huang Guohong,Chen Guanxiong,Huang Bin,Wu Jie.Effect of maize plant on N2O emission from field[J].Chinese Journal of Ecology,1998,9(3):261-264. |
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| Authors: | Huang Guohong Chen Guanxiong Huang Bin Wu Jie |
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| Institution: | Institute of Applied Ecology, Academia Sinica, Shenyang 110015 |
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| Abstract: | Observation on N2O flux in maize field using closed chamber technique shows that maize plant had a significant influence on N2O emission from maize soil system. The N2O emission from maize soil was greater than that from soil without maize. In addition, the roots of maize plant could obviously promote N2O emission from soil, especially in its later growing period. N2O emission after applying urea was 3.3kg·hm-2 from sowing to the end of the year, and 0.69kg·hm-2 of it came from maize plant, which accunted for 17.3% of total N2O emission. |
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| Keywords: | Maize plant N2O Emission flux |
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