Characteristics of Permafrost along Highway G214 in the Eastern Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | SHENG Yu; CAO Yuan-bing; LI Jing; WU Ji-chun; CHEN Ji; FENG Zi-liang |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2015-09 |
| 卷号 | 12期号:5页码:1135-1144 |
| 关键词 | Permafrost characteristics National Highway No. 214 (G214) Eastern Qinghai-Tibet Plateau Qinghai-Tibet Plateau Temperature |
| ISSN号 | 1672-6316 |
| 通讯作者 | LI Jing |
| 英文摘要 | The characteristics of the permafrost along National Highway No. 214 (G214) in Qinghai province (between kilometer markers K310 and K670), including the distribution patterns of permafrost and seasonally frozen ground (SFG), ground ice content and mean annual ground temperature (MAGT), were analyzed using a large quantity of drilling and measured ground temperature data. Three topographic units can be distinguished along the highway: the northern mountains, including Ela Mountain and Longstone Mountain; the medial alluvial plain and the southern Bayan Har Mountains. The horizontal distribution patterns of permafrost can be divided into four sections, from north to south: the northern continuous permafrost zone (K310-K460), the island permafrost zone (K460-K560), the southern continuous permafrost zone (K560-K630), and the discontinuous permafrost zone (K630-K670). Vertically, the permafrost lower limits (PLLs) of the discontinuous zone were 4200/4325 m, 4230/4350 m, and 4350/4450 m on the north-facing/south-facing slopes of Ela Mountain, Longstone Mountain and Bayan Har Mountains, respectively. The permafrost was generally warm, with MAGTs between -1.0°C and 0°C in the northern continuous permafrost zone, approximately -0.5°C in the island permafrost zone, between -1.5°C and 0°C in the southern continuous permafrost zone, and higher than -0.5°C in the discontinuous permafrost zone. In contrast, the spatial variations in ground ice content were mainly controlled by the local soil water content and lithology. The relationships between the mean annual air temperature (MAAT) and the PLLs indicated that the PLLs varied between -3.3°C and -4.1°C for the northern Ela and Longstone Mountains and between -4.1°C and -4.6°C in the southern Bayan Har Mountains. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10883]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2015_Vol12 No.5 |
| 推荐引用方式 GB/T 7714 | SHENG Yu,CAO Yuan-bing,LI Jing,et al. Characteristics of Permafrost along Highway G214 in the Eastern Qinghai-Tibet Plateau[J]. Journal of Mountain Science,2015,12(5):1135-1144. |
| APA | SHENG Yu,CAO Yuan-bing,LI Jing,WU Ji-chun,CHEN Ji,&FENG Zi-liang.(2015).Characteristics of Permafrost along Highway G214 in the Eastern Qinghai-Tibet Plateau.Journal of Mountain Science,12(5),1135-1144. |
| MLA | SHENG Yu,et al."Characteristics of Permafrost along Highway G214 in the Eastern Qinghai-Tibet Plateau".Journal of Mountain Science 12.5(2015):1135-1144. |
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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