| Relationships of climate change and tree ring of Betula ermanii tree line forest in Changbai Mountain |
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| 作者姓名： | YU Da-pao GU Hui-yan WANG Jian-dong WANG Qing-li DAI Li-min |
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| 作者单位： | [1]Institute of Applied Ecology, Chinese Academy ,fScience, Shenyang 110016, P. R. China [2]Northeast Forestry University, Harbin 150040, P. R. China [3]Garde,s Management Office, Urban Constr,ction Bureau of Jilin City; Jilin 132000, P. R. China [4]Shenyang Brach, Chinese Academy of Science, Shenyang, 110005, P. R. China |
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| 基金项目： | This research was supported by the National Natural Science Foundation of China （N0.70373044 ＆ 30470302） and Ph.D. Startup Found from Institute of Applied Ecology. Chinese Academy of Sciences. |
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| 摘 要： | Based on the tree-ring growth characteristics of Erman＇s birch （Betula ermanii charm.） and the relationships between it and climatic ）＇actors at elevation of 1950m, the sensitivity of tree lines in Changbai Mountain to climatic factors was assessed. The results indicated tree line forest in Changbai Mountain had an obvious sensitivity to climate factors. However, difference from other study sits is that the main climatic control factor on tree-ring growth was not current growth season temperatures, as might be expected, but previous winter and current March temperature. Although the precipitation in the region was quite abundant, the tree-ring growth was still significantly correlated with the precipitation during previous winter and current spring. Additionally, climatic factors which influenced the Erman＇s birch growth were not the yearly variables, but seasonal and monthly variables. Therefore, the reported increase in yearly mean temperature and total yearly precipitation since 1980s was not responded by sustained increase in ring widths in recent decades.
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| 关 键 词： | 长白山 气候变化 森林 生物环境 白桦 |
| 文章编号： | 1007-662X（2005）03-0187-06 |
| 收稿时间： | 2005-01-15 |
| 修稿时间： | 2005-04-12 |
Relationships of climate change and tree ring ofBetula ermanii tree line forest in Changbai Mountain |
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| YU Da-pao GU Hui-yan WANG Jian-dong WANG Qing-li DAI Li-min.Relationships of climate change and tree ring of Betula ermanii tree line forest in Changbai Mountain[J].Journal of Forestry Research,2005,16(3):187-192. |
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| Authors: | Yu Da-pao Gu Hui-yan Wang Jian-dong Wang Qing-li Dai Li-min |
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| Institution: | (1) Institute of Applied Ecology, Chinese Academy of Science, 110016 Shenyang, P. R. China;(2) Northeast Forestry University, 150040 Harbin, P. R. China;(3) Gardens Management Office, Urban Construction Bureau of Jilin City, 132000 Jilin, P. R. China;(4) Shenyang Brach, Chinese Academy of Science, 110005 Shenyang, P. R. China |
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| Abstract: | Based on the tree-ring growth characteristics of Erman's birch (Betula ermanii charm.) and the relationships between it and climatic factors at elevation of 1950m, the sensitivity of tree lines in Changbai
Mountain to climatic factors was assessed. The results indicated tree line forest in Changbai Mountain had an obvious, sensitivity
to climate factors. However, difference from other study sits is that the main climatic control factor on tree-ring growth
was not current growth season temperatures, as might be expected, but previous winter and current March temperature. Although
the precipitation in the region was quite abundant, the tree-ring growth was still significantly correlated with the precipitation
during previous winter and current spring. Additionally, climatic factors which influenced the Erman's birch growth were not
the yearly variables, but seasonal and monthly variables. Therefore the reported increase in yearly mean temperature and total
yearly precipitation since 1980s was not responded by sustained increase in ring widths in recent decades.
Foundation item: This research was supported by the National Natural Science Foundation of China (NO. 70373044&30470302) and Ph.D. Startup
Found from Institute of Applied Ecology, Chinese Academy of Sciences.
Biography: YU Da-pao (1973-), male, Ph.D., assistant professor of Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang
110016, P.R. China.
Responsible editor: Song Funan |
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| Keywords: | Climatic change dendrochronology Erman's birch Tree line in Changbai Mountain |
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