| 东北典型旱作农田N2O和CH4排放通量研究 |
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| 引用本文： | 黄国宏,陈冠雄,吴杰,黄斌,于克伟.东北典型旱作农田N2O和CH4排放通量研究[J].生态学杂志,1995,6(4):383-386. |
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| 作者姓名： | 黄国宏 陈冠雄 吴杰 黄斌 于克伟 |
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| 作者单位： | 中国科学院沈阳应用生态研究所陆地生态系统痕量物质生态过程开放实验室, 沈阳 110015 |
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| 基金项目： | 国家攀登计划;辽宁省自然科学基金;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 |
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| 摘 要： | 应用封闭式箱法技术测定了玉米、大豆田中N2O和CH4全年的通量变化。指出N2O排放有明显的季节变化和明显的日变化。大量的N2O排放发生在作物生长季节中。在冰雪溶化期和收割作物后也有一定量的N2O从土壤中排放。此外,实验结果也指出,玉米和大豆田作为大气CH4源或汇的作用不明显。
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| 关 键 词： | 氧化亚氮 甲烷 通量 |
| 收稿时间： | 1995-01-25 |
N2O and CH4 fluxes from typical upland fields in northeast China |
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| Huang Guohong,Chen Guanxiong,Wu Jie,Huang Bin,Yu Kewei.N2O and CH4 fluxes from typical upland fields in northeast China[J].Chinese Journal of Ecology,1995,6(4):383-386. |
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| Authors: | Huang Guohong Chen Guanxiong Wu Jie Huang Bin Yu Kewei |
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| Affiliation: | Laboratory of Ecological Process of Trace Substance in Terrestrial Ecosystem, Institute of Applied Ecology, Academia Sinica, Shenyang 110015 |
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| Abstract: | Closed chamber measurements of N2O and CH4 fluxes from soybean and maize fields at Shenyang Ecological Experimental Station show that the emission of N2O has significant diurnal and seasonal variations, and mainly occurs in the growing period of crops.N2O is also released from soil during thawing and after harvest.In addition, the net emission of CH4 from soybean and maize fields is very small, and hence, upland field as the sink or source of atmospheric CH4 is not significant. |
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| Keywords: | Nitrous oxide Methane Flux |
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