| 影响森林土壤N2O排放和CH4吸收的主要因素 |
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| 作者姓名： | Zhang X Xu H Chen G |
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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,110016 |
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| 基金项目： | 国家自然科学基金资助项目 (4970 10 16 ,39770 0 6 6 ) |
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| 摘 要： | 利用正交试验设计法对长白山阔叶红松林土壤进行培养试验,考察了温度、水分、pH、NH^ 4及NO3^-对森林土壤N2O排放和CH4吸收的影响。结果表明：在本试验设计的因素、水平条件下,pH和温度对N2O排放速率和CH4氧化速率的影响是显著的。N2O排放速率和CH4吸收速率分别与5因素进行多元回归的结果显示：二者均与土壤pH和温度呈显著正相关关系。并且,在本实验条件下,N2O排放速率与CH4吸收速率间呈显著线性正相关关系。
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| 关 键 词： | N2O排放 CH4吸收 森林土壤 大气环境 |
| 文章编号： | 0250-3301(2002)05-05-0008 |
Important factors controlling rates of N2O emission and CH4 oxidation from forest soil |
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| Zhang X,Xu H,Chen G.Important factors controlling rates of N2O emission and CH4 oxidation from forest soil[J].Chinese Journal of Environmental Science,2002,23(5):8-12. |
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| Authors: | Zhang Xiujun Xu Hui Chen Guanxiong |
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| Institution: | Laboratory of Ecological Process of Trace Substance in Terrestrial Ecosystem, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. |
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| Abstract: | In this study, laboratory incubation experiments were conducted to determine the effect of pH, soil water content, temperature, NH + 4 and NO - 3 on N 2O emission and CH 4 oxidation of mixed broad\|leaved Korean pine forest soil. Results showed that there were significant correlations between N 2O emission rate, CH 4 oxidation rate and soil pH and temperature under certain lab conditions. Meanwhile, the significant positive correlation between N 2O emission rate and CH 4 oxidation rate was also observed. The results suggested temperature and pH could be the most important factors controlling the rates of N 2O emission and CH 4 oxidation of a forest soil under this experiment conditions. |
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| Keywords: | N 2O emission CH 4 oxidation forest soil atmosphere |
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