The trend of tree line on the northern slope of Changbai Mountain |
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| 出 版 社：Journal of Forestry Research |
| 发表时间：2001,12(2):97～100 |
| 台 站：
长白山森林生态系统定位研究站
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| 作 者：Zhang Yang-jian, Dai Li-min |
| 点 击 率：1865 |
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| 关 键 字：null |
摘 要：
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| 关 键 字(英文)：Tree line ,Temperature, Elevation, Meteorological data |
摘 要(英文)：In order to decipher phenomenon of tree line changing with climate variety,the trend of tree line on the northern slope of Changbai Mountain was studied.Based on the meteorological data of Changbai Mountain.,the anuary temperature(the limiting effect for tree line) and annual mean temperature were mainly in vestigated,In the ecotone between Betula ermaniiand alpine tundra,the number and diameter at ground level of Betula ermanii in the plots were measured,According to the cprrelation between diameter at ground level(DGL)and age,the diameter at ground level can represent age directly.The results showed that the distribution age of Betula ermanii was in the trend of decreasing with elevation rising.In resent years,the annual mean temperature near Changbai Mountain is rising,which has led to the tree line ascending.
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