Variations in the northern permafrost boundary over the last four decades in the Xidatan region, Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Luo, Jing; Niu, Fu-jun; Lin, Zhan-ju; Liu, Ming-hao; Yin, Guo-an |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 15期号:4页码:765-778 |
| 关键词 | Qinghai-Tibet Plateau Permafrost Climate warming Permafrost limit Ground penetrating radar Thermal monitoring |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4731-2 |
| 文献子类 | Article |
| 英文摘要 | The distribution and variations of permafrost in the Xidatan region, the northern permafrost boundary of the Qinghai-Tibet Plateau, were examined and analyzed using ground penetrating radar (GPR), borehole drilling, and thermal monitoring data. Results from GPR profiles together with borehole verification indicate that the lowest elevation limit of permafrost occurrence is 4369 m above sea level in 2012. Compared to previous studies, the maximal rise of permafrost limit is 28 m from 1975 to 2012. The total area of permafrost in the study region has been decreased by 13.8%. One of the two previously existed permafrost islands has disappeared and second one has reduced by 76% in area during the past similar to 40 years. In addition, the ground temperature in the Xidatan region has increased from 2012 to 2016, with a mean warming rate of similar to 0.004A degrees C a-1 and similar to 0.003A degrees C a-1 at the depths of 6 and 15 m, respectively. The rising of permafrost limit in the Xidatan region is mainly due to global warming. However, some non-climatic factors such as hydrologic processes and anthropic disturbances have also induced permafrost degradation. If the air temperature continues to increase, the northern permafrost boundary in the Qinghai-Tibet Plateau may continue rising in the future. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000429949900008 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35421]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.4 |
| 推荐引用方式 GB/T 7714 | Luo, Jing,Niu, Fu-jun,Lin, Zhan-ju,et al. Variations in the northern permafrost boundary over the last four decades in the Xidatan region, Qinghai-Tibet Plateau[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(4):765-778. |
| APA | Luo, Jing,Niu, Fu-jun,Lin, Zhan-ju,Liu, Ming-hao,&Yin, Guo-an.(2018).Variations in the northern permafrost boundary over the last four decades in the Xidatan region, Qinghai-Tibet Plateau.JOURNAL OF MOUNTAIN SCIENCE,15(4),765-778. |
| MLA | Luo, Jing,et al."Variations in the northern permafrost boundary over the last four decades in the Xidatan region, Qinghai-Tibet Plateau".JOURNAL OF MOUNTAIN SCIENCE 15.4(2018):765-778. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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