| 长白山阔叶红松林不同深度土壤CH4氧化研究 |
| |
| 引用本文： | 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,2003,14(12):2269-2272. |
| |
| 作者姓名： | 梁战备 史奕 黄国宏 王琛瑞 岳进 吴劼 |
| |
| 作者单位： | 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 |
| |
| 基金项目： | 国家自然科学基金资助项目 (4 0 1710 92 ) |
| |
| 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400ppmv CH4浓度下此土层土壤最大氧化速率可达3．3nmolCH4·h^-1·g^-1 dw；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。
|
| 关 键 词： | CH4氧化 深度特征 |
| 文章编号： | 1001-9332(2003)12-2269-04 |
| 修稿时间： | 2003年3月25日 |
M ethane oxidation in soil profiles of broad-leaved Korean pine m ixed forest in Changbai M ountain |
| |
| LIANG Zhanbei,SHI Yi,HUANG Guohong,WANG Chenrui,YUE Jin,WU Jie.M ethane oxidation in soil profiles of broad-leaved Korean pine m ixed forest in Changbai M ountain[J].Chinese Journal of Applied Ecology,2003,14(12):2269-2272. |
| |
| Authors: | LIANG Zhanbei SHI Yi HUANG Guohong WANG Chenrui YUE Jin WU Jie |
| |
| Institution: | Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. lzbei001@hotmail.com |
| |
| 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. |
| |
| Keywords: | Methane oxidation Vertical profile |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《应用生态学报》浏览原始摘要信息 |
| 点击此处可从《应用生态学报》下载免费的PDF全文 |
