长白山阔叶红松林不同深度土壤CH4氧化研究

应用生态学报 ›› 2003, Vol. ›› Issue (12): 2269-2272.

长白山阔叶红松林不同深度土壤CH₄氧化研究

梁战备, 史奕, 黄国宏, 王琛瑞, 岳进, 吴劼

中国科学院沈阳应用生态研究所, 陆地生态过程开放实验室, 沈阳 110016

收稿日期:2003-03-25 修回日期:2003-07-09 出版日期:2003-12-15
通讯作者: 梁战备,男,1974年生,硕士生,主要从事温室气体及大气变化方面的研究,发表论文数篇.E-mail:lzbei001@hotmail.com.
基金资助:
国家自然科学基金资助项目(40171092)

Methane oxidation in soil profiles of broad-leaved Korean pine mixed forest in Changbai Mountain

LIANG Zhanbei, SHI Yi, HUANG Guohong, WANG Chenrui, YUE Jin, WU Jie

Key Laboratary of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China

Received:2003-03-25 Revised:2003-07-09 Online:2003-12-15

摘要/Abstract

摘要： 采集长白山阔叶红松林下不同深度的暗棕色森林土壤,在实验室条件下测定其对高低浓度CH₄的氧化.结果表明,土壤氧化CH₄的能力随深度变化明显;5～15cm土层具有最大CH₄氧化活性,在400ppmvCH₄浓度下此土层土壤最大氧化速率可达3.3nmolCH₄·h^-1·g^-1dw;25cm以下土层基本没有CH₄氧化活性;因0～5cm土层土壤含有高浓度NH₄⁺抑制了CH₄氧化菌的活性,所以此层土壤对CH₄吸收能力下降.

Abstract: Samples were collected from dark brown forest soil in different depths in the virgin broad leaved/Korean pine mixed forest in Changbai Mountain. Laboratory study on methane oxidation of forest soil revealed the vertical profiles of methane oxidation activity. The maximum methane oxidation occurred at the horizon 5～15 cm below the soil surface. When incubated with 400 ppmv methane, it had the highest uptake rate of 3.3 nmol·h^-1·g^-1 dw. Soil at horizon below 25 cm had a negligible capacity to oxidize methane. The methane oxidation capacity of surface soil (0～5 cm) decreased because of the inhibition effect of high concentration NH₄⁺ on methanotrophs.

中图分类号:

Q938.1

梁战备, 史奕, 黄国宏, 王琛瑞, 岳进, 吴劼. 长白山阔叶红松林不同深度土壤CH₄氧化研究[J]. 应用生态学报, 2003, (12): 2269-2272.

LIANG Zhanbei, SHI Yi, HUANG Guohong, WANG Chenrui, YUE Jin, WU Jie. Methane oxidation in soil profiles of broad-leaved Korean pine mixed forest in Changbai Mountain[J]. Chinese Journal of Applied Ecology, 2003, (12): 2269-2272.

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长白山阔叶红松林不同深度土壤CH₄氧化研究

Methane oxidation in soil profiles of broad-leaved Korean pine mixed forest in Changbai Mountain

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