Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | CAO Wei; SHENG Yu; WU Ji-chun; LI Jing |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2017-12 |
| 卷号 | 14期号:12页码:2406-2419 |
| 关键词 | Qinghai-tibet Plateau Northern-slope Of Bayan Har Mountains Permafrost Soil Moisture Spatial Variability Controlling Factors |
| ISSN号 | 1672-6316 |
| DOI | https://doi.org/10.1007/s11629-017-4467-z |
| 通讯作者 | SHENG Yu |
| 文献子类 | 期刊论文 |
| 英文摘要 | The soil moisture movement is an important carrier of material cycle and energy flow among the various geo-spheres in the cold regions. Thus, this research takes the north slope of Bayan Har Mountains in Qinghai-Tibet Plateau as a case study. The present study firstly investigates the change of permafrost moisture in different slope positions and depths. Based on this investigation, this article attempts to investigate the spatial variability of permafrost moisture and identifies the key influence factors in different terrain conditions. The method of classification and regression tree (CART) is adopted to identify the main controlling factors influencing the soil moisture movement. The relationships between soil moisture and environmental factors are revealed by the use of the method of canonical correspondence analysis (CCA). The results show that: 1) Due to the terrain slope and the freezing-thawing process, the horizontal flow weakens in the freezing period. The vertical migration of the soil moisture movement strengthens. It will lead to that the soil-moisture content in the up-slope is higher than that in the down-slope. The conclusion is contrary during the melting period. 2) Elevation, soil texture, soil temperature and vegetation coverage are the main environmental factors which affect the slope-permafrost soil-moisture. 3) Slope, elevation and vegetation coverage are the main factors that affect the slope-permafrost soil-moisture at the shallow depth of 0-20 cm. It is complex at the middle and lower depth. |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20631]  |
| 专题 | Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.12 |
| 推荐引用方式 GB/T 7714 | CAO Wei,SHENG Yu,WU Ji-chun,et al. Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau[J]. Journal of Mountain Science,2017,14(12):2406-2419. |
| APA | CAO Wei,SHENG Yu,WU Ji-chun,&LI Jing.(2017).Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau.Journal of Mountain Science,14(12),2406-2419. |
| MLA | CAO Wei,et al."Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau".Journal of Mountain Science 14.12(2017):2406-2419. |
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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