The impacts of soil freeze/thaw dynamics on soil water transfer and spring phenology in the Tibetan Plateau
文献类型：期刊论文
| 作者 | Huiru Jiang; Wenjiang Zhang; Yonghong Yi; Kun Yang; Gengxu Wang |
| 刊名 | ARCTIC ANTARCTIC AND ALPINE RESEARCH
 |
| 出版日期 | 2018 |
| 卷号 | 50期号:1页码:UNSP e1439155 |
| ISSN号 | 1523-0430 |
| 关键词 | Freeze/thaw permafrost soil moisture Tibetan Plateau vegetation spring onset |
| DOI | 10.1080/15230430.2018.1439155 |
| 通讯作者 | Wenjiang Zhang |
| 产权排序 | 5 |
| 英文摘要 | 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. |
| 电子版国际标准刊号 | 1938-4246 |
| 语种 | 英语 |
| WOS记录号 | WOS:000438736900001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/23474]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 推荐引用方式 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. |
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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