兰州大学机构库
Projected changes in soil freeze depth and their eco-hydrological impacts over the Tibetan Plateau during the 21st century
Li, Hu1,3; Pan, Xiaoduo1,2; Peng, Xiaoqing4; Washakh, Rana Muhammad Ali1,5; Zheng, Min4; Nie, Xiaowei1,6
2023-12-20
Online publication date2023-09
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT   Impact Factor & Quartile
ISSN0048-9697 ; 1879-1026
EISSN1879-1026
Volume905
page numbers15
AbstractIn 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.
KeywordSoil freeze depth Tibetan plateau Frozen ground Stefan's solution Future climate change CMIP6
PublisherELSEVIER
DOI10.1016/j.scitotenv.2023.167074
Indexed BySCIE
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:001080183100001
Original Document TypeArticle
PMID 3771436
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568334
Collection兰州大学
Corresponding AuthorPan, Xiaoduo; Nie, Xiaowei
Affiliation
1.Chinese Acad Sci, Inst Tibetan Plateau Res, Natl Tibetan Plateau Data Ctr TPDC, State Key Lab Tibetan Plateau Earth Syst Environm, Beijing 100101, Peoples R China;
2.Qinghai Normal Univ, Acad Plateau Sci & Sustainabil, Xining 810016, Peoples R China;
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
4.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China;
5.Guizhou Inst Technol, Sch Civil Engn, Guiyang 550003, Peoples R China;
6.Tibet Univ, Sch Engn, Lhasa 850000, Peoples R China
Recommended Citation
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]. SCIENCE OF THE TOTAL ENVIRONMENT,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).
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