| The impacts of soil freeze/thaw dynamics on soil water transfer and spring phenology in the Tibetan Plateau | |
| Huiru Jiang; Wenjiang Zhang; Yonghong Yi; Kun Yang; Gengxu Wang | |
| Corresponding Author | Wenjiang Zhang |
| 2018 | |
| Source Publication | ARCTIC ANTARCTIC AND ALPINE RESEARCH
 |
| ISSN | 1523-0430 |
| EISSN | 1938-4246 |
| Volume | 50Issue:1Pages:UNSP e1439155 |
| Subtype | Article |
| Contribution Rank | 5 |
| Abstract | Climate warming has induced significant changes in permafrost and seasonally frozen ground (SFG) in the Tibetan Plateau, which have complex influences on local environments. A better understanding of the impacts of soil freeze/thaw (F/T) dynamics on soil water transfer and vegetation growth is important to explore related eco-hydrological influences. We investigated soil F/T dynamics and their impacts with in-situ and satellite-based observations. Our results showed the contrasting F/T dynamics between SFG and permafrost areas. In permafrost areas, soil froze downward from the ground surface and upward from the active layer bottom with a distinct freezing zero-curtain, and minimum soil moisture occurred in the intermediate layer, but the thawing process was unidirectional. However, the vertical F/T directions were contrary in SFG areas, where soil moisture generally increased with depth and the thawing zero-curtain was distinct. The spring onset showed a positive correlation with thaw onset in permafrost areas, but such a correlation was variable in SFG areas likely depending on soil-moisture level. Our results implied that the different soil-moisture patterns and the varying vegetation response might be related to the spatially contrasting UT dynamics, which may have different impacts on soil water transfer, and further affect the zero-curtain and vegetation phenology. |
| Keyword | Freeze/thaw permafrost soil moisture Tibetan Plateau vegetation spring onset |
| DOI | 10.1080/15230430.2018.1439155 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000438736900001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/23474 |
| Collection | 山地表生过程与生态调控重点实验室 |
| Recommended Citation GB/T 7714 | Huiru Jiang,Wenjiang Zhang,Yonghong Yi,et al. The impacts of soil freeze/thaw dynamics on soil water transfer and spring phenology in the Tibetan Plateau[J]. ARCTIC ANTARCTIC AND ALPINE RESEARCH,2018,50(1):UNSP e1439155. |
| APA | Huiru Jiang,Wenjiang Zhang,Yonghong Yi,Kun Yang,&Gengxu Wang.(2018).The impacts of soil freeze/thaw dynamics on soil water transfer and spring phenology in the Tibetan Plateau.ARCTIC ANTARCTIC AND ALPINE RESEARCH,50(1),UNSP e1439155. |
| MLA | Huiru Jiang,et al."The impacts of soil freeze/thaw dynamics on soil water transfer and spring phenology in the Tibetan Plateau".ARCTIC ANTARCTIC AND ALPINE RESEARCH 50.1(2018):UNSP e1439155. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| The impacts of soil （2098KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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