IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.12
Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau
CAO Wei; SHENG Yu; WU Ji-chun; LI Jing
Corresponding AuthorSHENG Yu
2017-12
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:12Pages:2406-2419
Subtype期刊论文
AbstractThe 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.
KeywordQinghai-tibet Plateau Northern-slope Of Bayan Har Mountains Permafrost Soil Moisture Spatial Variability Controlling Factors
DOIhttps://doi.org/10.1007/s11629-017-4467-z
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20631
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.12
Recommended Citation
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.
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