Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau
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 perm...
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ftchinacadscimhe:oai:ir.imde.ac.cn:131551/20631 2023-05-15T17:56:23+02:00 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 2017-12 http://ir.imde.ac.cn/handle/131551/20631 https://doi.org/10.1007/s11629-017-4467-z 英语 eng Journal of Mountain Science 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. http://ir.imde.ac.cn/handle/131551/20631 https://doi.org/10.1007/s11629-017-4467-z cn.org.cspace.api.content.CopyrightPolicy@a632ea Qinghai-tibet Plateau Northern-slope Of Bayan Har Mountains Permafrost Soil Moisture Spatial Variability Controlling Factors 期刊论文 2017 ftchinacadscimhe https://doi.org/10.1007/s11629-017-4467-z 2022-12-19T18:20:18Z 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. Report permafrost IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) Journal of Mountain Science 14 12 2406 2419 |
institution |
Open Polar |
collection |
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) |
op_collection_id |
ftchinacadscimhe |
language |
English |
topic |
Qinghai-tibet Plateau Northern-slope Of Bayan Har Mountains Permafrost Soil Moisture Spatial Variability Controlling Factors |
spellingShingle |
Qinghai-tibet Plateau Northern-slope Of Bayan Har Mountains Permafrost Soil Moisture Spatial Variability Controlling Factors CAO Wei SHENG Yu WU Ji-chun LI Jing Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau |
topic_facet |
Qinghai-tibet Plateau Northern-slope Of Bayan Har Mountains Permafrost Soil Moisture Spatial Variability Controlling Factors |
description |
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. |
format |
Report |
author |
CAO Wei SHENG Yu WU Ji-chun LI Jing |
author_facet |
CAO Wei SHENG Yu WU Ji-chun LI Jing |
author_sort |
CAO Wei |
title |
Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau |
title_short |
Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau |
title_full |
Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau |
title_fullStr |
Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau |
title_full_unstemmed |
Spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of Bayan Har Mountains in Qinghai-Tibet Plateau |
title_sort |
spatial variability and its main controlling factors of the permafrost soil-moisture on the northern-slope of bayan har mountains in qinghai-tibet plateau |
publishDate |
2017 |
url |
http://ir.imde.ac.cn/handle/131551/20631 https://doi.org/10.1007/s11629-017-4467-z |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
Journal of Mountain Science 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. http://ir.imde.ac.cn/handle/131551/20631 https://doi.org/10.1007/s11629-017-4467-z |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@a632ea |
op_doi |
https://doi.org/10.1007/s11629-017-4467-z |
container_title |
Journal of Mountain Science |
container_volume |
14 |
container_issue |
12 |
container_start_page |
2406 |
op_container_end_page |
2419 |
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1766164543107497984 |