| 青藏高原冻土退化的研究 |
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| 引用本文： | 王绍令.青藏高原冻土退化的研究[J].地球科学进展,1997,12(2):164-167. |
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| 作者姓名： | 王绍令 |
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| 作者单位： | 中国科学院兰州冰川冻土研究所 |
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| 基金项目： | 本文得到国家“八五”攀登计划青藏项目和中科院“冰冻圈动态变化基础研究”项目资助。 |
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| 摘 要： | 青藏高原从70年代后期气温持续转暖,导致高原多年冻土呈区域性退化趋势。年平均地温升高0.1～0.5℃,在边缘地带垂向上形成不衔接冻土和融化夹层,多年冻土分布下界上升40～80 m,高原多年冻土总面积约减少10×104km2。
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| 关 键 词： | 青藏高原 冻土退化 地温 多年冻土面积 |
| 收稿时间： | 1996-10-15 |
| 修稿时间： | 1996-11-04 |
STUDY OF PERMAFROST DEGRADATION IN THE QINGHAI XIZANG PLATEAU |
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| WANG Shaoling.STUDY OF PERMAFROST DEGRADATION IN THE QINGHAI XIZANG PLATEAU[J].Advance in Earth Sciences,1997,12(2):164-167. |
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| Authors: | WANG Shaoling |
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| Institution: | Observation and Research Station of Qinghai-Xizang Plateau,LIGG,CAS 730000 |
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| Abstract: | The climate in the Qinghai-Xizang plateau has been becoming warmer since the late 1970' s ,that have resulted in a regional permafrost degradation in the plateau.The mean annual ground temperatures rose 0.1～0.5℃,uncoincidently frozen ground and residual thawed layers in the vertical profile have been forming in the fringe,the lower limit of permafrost distribution rose about 40～80 m,and the total area of permafrost has been disminished 10×104km2. |
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| Keywords: | Qinghai Xizang plateau Permafrost degradation Ground temperature Permafrost area |
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