Respiration of downed logs in an old-growth temperate forest in north-eastern China
文献类型：期刊论文
| 作者 | Wu, Jiabing1; Zhang, Xinjian1,2; Wang, Haolei2,3; Sun, Jinwei1,2; Guan, Dexin1 |
| 刊名 | SCANDINAVIAN JOURNAL OF FOREST RESEARCH
 |
| 出版日期 | 2010 |
| 卷号 | 25期号:6页码:500-506 |
| 关键词 | Carbon cycle coarse woody debris downed logs respiration |
| ISSN号 | 0282-7581 |
| DOI | 10.1080/02827581.2010.524166 |
| 通讯作者 | Wu, Jiabing(wujb@iae.ac.cn) |
| 英文摘要 | Carbon dioxide (CO2) flux from coarse woody debris is an important source of carbon emission in forests with large amounts of coarse woody debris (CWD). Respiration from downed logs of Korean pine (Pinus koraiensis Sieb. et Zucc.) and Amur linden (Tilia amurensis Rupr.) and their response to meteorological factors were investigated using the closed static chamber-gas chromatography technique in an old-growth temperate forest in Changbai Mountain region, north-eastern China. On a yearly timescale, daily respiration rates (R log) varied over two orders of magnitude (8.7-252.3 mg Ckg-1), and were significantly correlated with wood water content and temperature (p0.05). The temperature-dependent empirical exponential models for each decay class explained more than 67% of the observed variations in R log. More decayed wood had a greater water content and pore space than less decayed wood, and these differences were probably responsible for the observed difference in respiration rate among decay classes. The annual carbon loss rate due to respiration was estimated to be 28.0 +/- 3.7 g Cm-2, which contributed only about 3% of total carbon loss from forest floor, but net carbon flux from downed logs accounted for up to 15% of net ecosystem exchange in this old temperate forest. Downed logs represent a small, but substantial carbon flux that is expected to increase over the next several decades in old-growth forest. |
| 资助项目 | Major State Basic Research Development Program[2009 CB421101] ; National Natural Science Foundation of China[30970516] |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000284634800002 |
| 出版者 | TAYLOR & FRANCIS AS |
| 资助机构 | Major State Basic Research Development Program ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/126391]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wu, Jiabing |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Genom, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Jiabing,Zhang, Xinjian,Wang, Haolei,et al. Respiration of downed logs in an old-growth temperate forest in north-eastern China[J]. SCANDINAVIAN JOURNAL OF FOREST RESEARCH,2010,25(6):500-506. |
| APA | Wu, Jiabing,Zhang, Xinjian,Wang, Haolei,Sun, Jinwei,&Guan, Dexin.(2010).Respiration of downed logs in an old-growth temperate forest in north-eastern China.SCANDINAVIAN JOURNAL OF FOREST RESEARCH,25(6),500-506. |
| MLA | Wu, Jiabing,et al."Respiration of downed logs in an old-growth temperate forest in north-eastern China".SCANDINAVIAN JOURNAL OF FOREST RESEARCH 25.6(2010):500-506. |
入库方式： OAI收割
来源：金属研究所
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