| The Impact of Climate Warming on Permafrost and Qinghai-Tibet Railway |
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| 作者姓名： | Wu Qingbai Li Shuxun Liu Yongzhi |
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| 作者单位： | State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000 |
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| 基金项目： | Knowledge innovation project of Chinese Academy of Sciences ＂Interaction Between Qinghai-Tibet Railway Project and the Permafrost and Its Environmental Effect＂（KZCXL-SW-（M-）and‘973＇ national key basic research and development programme （2002 CB 412704） |
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| 摘 要： | Global wanning is an inarguable fact. Permafrost is experiencing a change due to climate warming in Qinghai-Tibet Plateau, such as the decreasing of permafrost table, the rising of permafrost temperature, etc. On the basis of analysing the permafrost change under the climate change and engineering action, the thermal regime and spatial distribution of permafrost are predicted for air temperature rising 1℃ and 2.6℃ after 50 years in this paper. The results show that climate change results in the larger change for the thermal regime and spatial distribution of permafrost. Permafrost change will produce the great effect on the Qinghai- Tibet Railway engineering, not only resulting in the decreasing of permafrost table beneath the roadbed, but also resulting in thawing settlement due to the thawing of ground ice near permafrost table. The idea of cooling roadbed and actively protecting permafrost for the Qinghai-Tibet Railway engineering could adjust and control the permafrost thermal state, some better methods are provided to ensure the engineering stability in the areas of warm permafrost and high ice content.
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| 关 键 词： | 青藏铁路 永久冻结带 气候变暖 气候变化 |
| 收稿时间： | 2006-03-31 |
The Impact of Climate Warming on Permafrost and Qinghai-Tibet Railway |
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| Wu Qingbai,Li Shuxun,Liu Yongzhi.The Impact of Climate Warming on Permafrost and Qinghai-Tibet Railway[J].Engineering Sciences,2006,4(2):92-97. |
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| Authors: | Wu Qingbai Li Shuxun and Liu Yongzhi |
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| Institution: | (State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000);(State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730001);(State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730002) |
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| Abstract: | |
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| Keywords: | climate change permafrost Qinghai-Tibet Railway |
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