| 土壤 Eh 和温度对稻田甲烷排放季节变化的影响 |
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| 引用本文： | 徐华,蔡祖聪,李小平.土壤 Eh 和温度对稻田甲烷排放季节变化的影响[J].农业环境科学学报,1999,18(4):3. |
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| 作者姓名： | 徐华 蔡祖聪 李小平 |
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| 作者单位： | 中国科学院南京土壤研究所!南京210008 |
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| 摘 要： | 通过温室盆栽试验研究了土壤Ｅｈ和温度对稻田甲烷（ＣＨ４）排放季节变化的影响。结果表明，当水稻生长期土壤Ｅｈ处于适宜ＣＨ４产生的水平时，土壤Ｅｈ对ＣＨ４排放季节变化没有显著影响，这时土壤温度却显著影响ＣＨ４排放季节变化；当水稻生长期相当一段时间土壤Ｅｈ处于抑制ＣＨ４产生的水平时，土壤Ｅｈ的季节变化与ＣＨ４排放季节变化间存在显著相关性，而土壤温度却没有。
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| 关 键 词： | CH_4排放 土壤Eh 土壤温度 季节变化 |
| 文章编号： | 1000－0267(1999)04－0145－05 |
Effect of Soil Eh and Temperature on Seasonal Variation of CH4 Emission from Rice |
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| Field. XU Hua et al..Effect of Soil Eh and Temperature on Seasonal Variation of CH4 Emission from Rice[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),1999,18(4):3. |
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| Authors: | Field XU Hua |
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| Abstract: | A pot experiment in greenhouse was carried out to investigate the effect of soil Eh and temperature on seasonal variation of CH4 emission from rice field. The results showed that when soil Eh was in a level suitable for CH4 production, soil Eh has no significant effect on seasonal variation of CH4 emission. On the other hand, when soil Eh was in a range suppressing CH4 production, it was soil Eh, not soil temperature that affected seasonal variation of CH4 emission significantly. There existed significant correlation between CH4 emission and soil Eh. |
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| Keywords: | CH4 emission soil Eh soil temperature seasonal variation |
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