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Factors controlling N2O and CH4 fluxes in mixed broad-leaved/Korean pine forest of Changbai Mountain, China

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Abstract

Using the closed chamber technique, thein situ measurements of N2O and CH4 fluxes was conducted in a broad-leaved Korean pine mixed forest ecosystem in Changbai Mountain, China, from June 1994 to October 1995. The relationships between fluxes (N2O and CH4) and some major environmental factors (temperature, soil water content and soil available nitrogen) were studied. A significant positive correlation between N2O emission and air/soil temperature was observed, but no significant correlation was found between N2O emission and soil water content (SWC). This result showed that temperature was an important controlling factor of N2O flux. There was a significant correlation between CH4 uptake and SWC, but no significant correlation was found between CH4 uptake and temperature. This suggested SWC was an important factor controlling CH4 uptake. The very significant negative correlation between logarithmic N2O flux and soil nitrate concentration, significant negative correlation between CH4 flux and soil ammonium content were also found.

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Authors and Affiliations

  1. Institute of Applied Ecology, Chinese Academy of Sciences, 110015, Shenyang, P.R. China

    Xu Hui, Chen Guanxiong, Huang Guohong, Han Shijie & Zhang Xiujun

Authors
  1. Xu Hui
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  2. Chen Guanxiong
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  3. Huang Guohong
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  4. Han Shijie
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  5. Zhang Xiujun
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Additional information

This project is supported by Chinese Academy of Sciences

Responsible editor: Chai Ruihai

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Hui, X., Guanxiong, C., Guohong, H. et al. Factors controlling N2O and CH4 fluxes in mixed broad-leaved/Korean pine forest of Changbai Mountain, China. Journal of Forestry Research 10, 214–218 (1999). https://doi.org/10.1007/BF02855458

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  • DOI: https://doi.org/10.1007/BF02855458

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