Climate Change Data Portal
| DOI | 10.1016/j.scitotenv.2023.167074 |
| Projected changes in soil freeze depth and their eco-hydrological impacts over the Tibetan Plateau during the 21st century | |
| Li, Hu; Pan, Xiaoduo; Peng, Xiaoqing; Washakh, Rana Muhammad Ali; Zheng, Min; Nie, Xiaowei | |
| 发表日期 | 2023 |
| ISSN | 0048-9697 |
| EISSN | 1879-1026 |
| 卷号 | 905 |
| 英文摘要 | In the context of global warming, the soil freeze depth (SFD) over the Tibetan Plateau (TP) has undergone significant changes, with a series of profound impacts on the hydrological cycle and ecosystem. The complex terrains and high elevations of the TP pose great challenges in data acquisition, presenting difficulties for studying SFD in this region. This study employs Stefan's solution and downscaled datasets from the Coupled Model Intercomparison Project Phase 6 (CMIP6) to simulate the future SFDs over the TP. The changing trends of the projected SFDs under different Shared Socio-economic Pathways (SSP) scenarios are investigated, and; the responses of SFDs to potential climatic factors, such as temperature and precipitation, are analyzed. The potential impacts of SFD changes on eco-hydrological processes are analyzed based on the relationships between SFDs, the distribution of frozen ground, soil moisture, and the Normalized Difference Vegetation Index (NDVI). Results show that the projected SFDs of the TP are estimated to decrease at rates of 0.100 cm/yr under the SSP126, 0.330 cm/yr under the SSP245, 0.565 cm/yr under the SSP370, and 0.750 cm/yr under the SSP585. Additionally, the SFD decreased at a rate of 0.160 cm/yr during the historical period from 1950 to 2014, which was between the decreasing rates of the SSP126 and SSP245 scenarios. The projected SFDs are negatively correlated with air temperature and precipitation, more significant under the higher emissions scenario. The projected decrease in SFDs will significantly impact eco-hydrological processes. A rapid decrease in SFD may lead to a decline in soil moisture content and have adverse impacts on vegetation growth. This research provides valuable insights into the future changes in SFD on the TP and their impacts on eco-hydrological processes. |
| 关键词 | Soil freeze depthTibetan plateauFrozen groundStefan's solutionFuture climate changeCMIP6 |
| 英文关键词 | ACTIVE-LAYER THICKNESS; EARTH SYSTEM MODEL; PERMAFROST DISTRIBUTION; CLIMATE-CHANGE; RIVER-BASIN; 3RD POLE; REGION; STATE; DEGRADATION; PREDICTION |
| WOS研究方向 | Environmental Sciences |
| WOS记录号 | WOS:001080183100001 |
| 来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/283834 |
| 作者单位 | Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Qinghai Normal University; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Lanzhou University; Guizhou Institute of Technology; Tibet University |
| 推荐引用方式 GB/T 7714 | Li, Hu,Pan, Xiaoduo,Peng, Xiaoqing,et al. Projected changes in soil freeze depth and their eco-hydrological impacts over the Tibetan Plateau during the 21st century[J]. 中国科学院青藏高原研究所,2023,905. |
| APA | Li, Hu,Pan, Xiaoduo,Peng, Xiaoqing,Washakh, Rana Muhammad Ali,Zheng, Min,&Nie, Xiaowei.(2023).Projected changes in soil freeze depth and their eco-hydrological impacts over the Tibetan Plateau during the 21st century.SCIENCE OF THE TOTAL ENVIRONMENT,905. |
| MLA | Li, Hu,et al."Projected changes in soil freeze depth and their eco-hydrological impacts over the Tibetan Plateau during the 21st century".SCIENCE OF THE TOTAL ENVIRONMENT 905(2023). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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