Responses of permafrost an the qinghai-tibet plateau, China, to climate change and engineering construction
文献类型：期刊论文
| 作者 | Wu, Qingbai; Dong, Xianfu; Liu, Yongzhi; Jin, Hujun |
| 刊名 | ARCTIC ANTARCTIC AND ALPINE RESEARCH
 |
| 出版日期 | 2007-11-01 |
| 卷号 | 39期号:4页码:682-687 |
| ISSN号 | 1523-0430 |
| 通讯作者 | Wu, Qingbai(qbwu@ns.lzb.ac.cn) |
| 英文摘要 | Monitoring of permafrost along the Qinghai-Tibet (Xizang) Highway shows that there is a large difference in the response of permafrost to climate change and to engineering construction. The change in cold (< - 1.5 degrees C) permafrost is greater than that in warm (>= - 1.5 degrees C) permafrost under the effect of climate change, while the cold permafrost is less sensitive to the disturbances from engineering activities. However, warm permafrost is very sensitive to both climate warming and the impacts from engineering construction. This is because engineering construction has more immediate and direct impacts on the thermal and moisture regimes of underlying permafrost, and consequently greater influence than climate change during the first few years after engineering construction. Assuming constant annual rates of warming, the surface of cold permafrost would approach the warming due to engineering construction in 50 yr, while it would take about 20 yr in areas with warm permafrost. At a depth of 6 m, the temperature rise under engineered surfaces would be reached within 20 and 5-8 yr in cold and warm permafrost, respectively. Therefore, the warming immediately following disturbances of engineering construction would occur naturally in a few years under warm permafrost, but it would take decades for cold permafrost to have the similar thermal effects. Therefore, climate change will have more direct and immediate impacts on the thermal regime of warm permafrost and on the stability and reliability of engineering infrastructures above warm permafrost. |
| 收录类别 | ISTP ; SCI |
| WOS关键词 | HIGHWAY |
| WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
| WOS类目 | Environmental Sciences ; Geography, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000250962500021 |
| 出版者 | INST ARCTIC ALPINE RES |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556003 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wu, Qingbai |
| 作者单位 | Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Qingbai,Dong, Xianfu,Liu, Yongzhi,et al. Responses of permafrost an the qinghai-tibet plateau, China, to climate change and engineering construction[J]. ARCTIC ANTARCTIC AND ALPINE RESEARCH,2007,39(4):682-687. |
| APA | Wu, Qingbai,Dong, Xianfu,Liu, Yongzhi,&Jin, Hujun.(2007).Responses of permafrost an the qinghai-tibet plateau, China, to climate change and engineering construction.ARCTIC ANTARCTIC AND ALPINE RESEARCH,39(4),682-687. |
| MLA | Wu, Qingbai,et al."Responses of permafrost an the qinghai-tibet plateau, China, to climate change and engineering construction".ARCTIC ANTARCTIC AND ALPINE RESEARCH 39.4(2007):682-687. |
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来源：寒区旱区环境与工程研究所
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