| 三江平原小叶章湿地H2S和COS排放动态 |
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| 引用本文： | 李新华,刘景双,杨继松. 三江平原小叶章湿地H2S和COS排放动态[J]. 环境科学, 2006, 27(11): 2145-2149 |
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| 作者姓名： | 李新华 刘景双 杨继松 |
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| 作者单位： | 1.中国科学院东北地理与农业生态研究所, 长春 130012；2.中国科学院研究生院, 北京 100039,1.中国科学院东北地理与农业生态研究所, 长春 130012,1.中国科学院东北地理与农业生态研究所, 长春 130012；2.中国科学院研究生院, 北京 100039 |
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| 基金项目： | 国家自然科学基金项目（90211003）;中国科学院知识创新工程重要方向项目（KZCX3-SW-332） |
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| 摘 要： | 利用静态箱/气相色谱法，观测了生长季（5～9月）三江平原小叶章沼泽化草甸H2S和COS的释放动态，结果表明，H2S、COS的排放通量具有季节和日变化规律，小叶章沼泽化草甸H2S的平均释放通量为0.34 μg·(m2·h)-1，COS的平均释放通量为－0.29μg·(m2·h)-1；在生长季，小叶章沼泽化草甸表现为H2S的源，COS的汇。小叶章的生长过程对H2S、COS的排放影响显著，在小叶章生长旺盛期，H2S出现排放峰值，COS出现吸收高峰，H2S和COS的释放通量呈负相关。
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| 关 键 词： | 三江平原；小叶章湿地；H2S；COS |
| 文章编号： | 0250-3301（2006）11-2145-05 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 2005-12-26 |
Dynamics of H2S and COS Emission Fluxes from Different Calamagrostis angustifolia Wetlands in Sanjiang Plain |
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| LI Xin-hua. Dynamics of H2S and COS Emission Fluxes from Different Calamagrostis angustifolia Wetlands in Sanjiang Plain[J]. Chinese Journal of Environmental Science, 2006, 27(11): 2145-2149 |
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| Authors: | LI Xin-hua |
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| Affiliation: | Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China. xhli@neigae.ac.cn |
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| Abstract: | Using the static chamber and chromatogram method, H2S and COS emission fluxes from the mash meadow Calamagrostis angustifolia in Sanjiang Plain were measured during growth season(5-9 month), the results showed that the seasonal and diurnal variations of H2S and COS emission fluxes were obvious, the mean H2S and COS emission fluxes from the mash meadow Calamagrostis angustifolia were 0.34 microg x (m2 x h)(-1) and - 0.29 microg x (m2 x h)(-1) respectively, the Calamagrostis angustifolia wetlands were the sources for H2S and the sinks for COS during the growth time. The emission fluxes of H2S and COS were affected by the Calamagrostis angustifolia growth, and there were H2S emission peak and COS absorbed peak during the bloom growth time, meanwhile the integrative correlation of H2S and COS emission fluxes were observed. |
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| Keywords: | Sanjiang Plain Calamagrostis angustifolia wetlands Hydrogen sulfide Carbonyl sulfide |
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