Environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the Qinghai–Tibet Plateau
The Qinghai–Tibet Plateau (QTP) has experienced rapid environmental changes, including climate warming and wetting, since the 1980s. These environmental changes significantly impact the shallow soil hydrothermal conditions, which have key roles in land–atmosphere feedback and ecosystem functions. Ho...
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KeAi Communications Co., Ltd.
2024
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ftdoajarticles:oai:doaj.org/article:e090111bb90042cea465002bd4090c9f 2024-09-15T18:29:49+00:00 Environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the Qinghai–Tibet Plateau Guo-An Yin Jing Luo Fu-Jun Niu Ming-Hao Liu Ze-Yong Gao Tian-Chun Dong Wei-Heng Ni 2024-04-01T00:00:00Z https://doi.org/10.1016/j.accre.2024.01.004 https://doaj.org/article/e090111bb90042cea465002bd4090c9f EN eng KeAi Communications Co., Ltd. http://www.sciencedirect.com/science/article/pii/S1674927824000042 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2024.01.004 https://doaj.org/article/e090111bb90042cea465002bd4090c9f Advances in Climate Change Research, Vol 15, Iss 2, Pp 285-296 (2024) Warming amd wetting Soil hydrothermal change Factor Permafrost Seasonal frost Meteorology. Climatology QC851-999 Social sciences (General) H1-99 article 2024 ftdoajarticles https://doi.org/10.1016/j.accre.2024.01.004 2024-08-05T17:49:22Z The Qinghai–Tibet Plateau (QTP) has experienced rapid environmental changes, including climate warming and wetting, since the 1980s. These environmental changes significantly impact the shallow soil hydrothermal conditions, which have key roles in land–atmosphere feedback and ecosystem functions. However, the spatial variations and responses of soil hydrothermal conditions to environmental changes over the QTP with permafrost (PF) and seasonal frost (SF) remain unclear. In this study, we investigated the spatial variations in soil temperature (ST) and soil moisture (SM) changes over the QTP from 2000 to 2020 using 99 in-situ sites with observations at 4 depths (i.e. 10, 40, 100 and 200 cm). The main environmental controlling factors were further identified using a calibrated statistical model. Results showed that significant (p < 0.05) soil warming occurred at multiple soil layers during 2000–2020 with a wide variation (i.e. 0.033–0.039 °C per year on average), whereas the warming rates at PF sites were two times greater than those at SF sites. In addition, the soil wetting rate was high over the SF region, whereas the soil wetting rate was low over the PF region. Aside from air temperature, changes in thawing degree days and solar radiation (Srad) contributed most to soil warming in the PF region, whereas changes in rainfall, Srad and evaporation (EVA) have been identified as the key factors in the SF region. As for soil wetting, changes in snowfall, freezing degree days and vegetation have noticeable nonlinear effects over the PF region, whereas changes in EVA, Srad and rainfall highlighted distinct linear and nonlinear effects in the SF region. These findings enhance our understanding of the hydrothermal impacts of future environmental changes over the QTP. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Advances in Climate Change Research 15 2 285 296 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Warming amd wetting Soil hydrothermal change Factor Permafrost Seasonal frost Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
spellingShingle |
Warming amd wetting Soil hydrothermal change Factor Permafrost Seasonal frost Meteorology. Climatology QC851-999 Social sciences (General) H1-99 Guo-An Yin Jing Luo Fu-Jun Niu Ming-Hao Liu Ze-Yong Gao Tian-Chun Dong Wei-Heng Ni Environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the Qinghai–Tibet Plateau |
topic_facet |
Warming amd wetting Soil hydrothermal change Factor Permafrost Seasonal frost Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
description |
The Qinghai–Tibet Plateau (QTP) has experienced rapid environmental changes, including climate warming and wetting, since the 1980s. These environmental changes significantly impact the shallow soil hydrothermal conditions, which have key roles in land–atmosphere feedback and ecosystem functions. However, the spatial variations and responses of soil hydrothermal conditions to environmental changes over the QTP with permafrost (PF) and seasonal frost (SF) remain unclear. In this study, we investigated the spatial variations in soil temperature (ST) and soil moisture (SM) changes over the QTP from 2000 to 2020 using 99 in-situ sites with observations at 4 depths (i.e. 10, 40, 100 and 200 cm). The main environmental controlling factors were further identified using a calibrated statistical model. Results showed that significant (p < 0.05) soil warming occurred at multiple soil layers during 2000–2020 with a wide variation (i.e. 0.033–0.039 °C per year on average), whereas the warming rates at PF sites were two times greater than those at SF sites. In addition, the soil wetting rate was high over the SF region, whereas the soil wetting rate was low over the PF region. Aside from air temperature, changes in thawing degree days and solar radiation (Srad) contributed most to soil warming in the PF region, whereas changes in rainfall, Srad and evaporation (EVA) have been identified as the key factors in the SF region. As for soil wetting, changes in snowfall, freezing degree days and vegetation have noticeable nonlinear effects over the PF region, whereas changes in EVA, Srad and rainfall highlighted distinct linear and nonlinear effects in the SF region. These findings enhance our understanding of the hydrothermal impacts of future environmental changes over the QTP. |
format |
Article in Journal/Newspaper |
author |
Guo-An Yin Jing Luo Fu-Jun Niu Ming-Hao Liu Ze-Yong Gao Tian-Chun Dong Wei-Heng Ni |
author_facet |
Guo-An Yin Jing Luo Fu-Jun Niu Ming-Hao Liu Ze-Yong Gao Tian-Chun Dong Wei-Heng Ni |
author_sort |
Guo-An Yin |
title |
Environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the Qinghai–Tibet Plateau |
title_short |
Environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the Qinghai–Tibet Plateau |
title_full |
Environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the Qinghai–Tibet Plateau |
title_fullStr |
Environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the Qinghai–Tibet Plateau |
title_full_unstemmed |
Environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the Qinghai–Tibet Plateau |
title_sort |
environmental factors controlling soil warming and wetting during 2000–2020 in permafrost and non-permafrost regions across the qinghai–tibet plateau |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.accre.2024.01.004 https://doaj.org/article/e090111bb90042cea465002bd4090c9f |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Advances in Climate Change Research, Vol 15, Iss 2, Pp 285-296 (2024) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1674927824000042 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2024.01.004 https://doaj.org/article/e090111bb90042cea465002bd4090c9f |
op_doi |
https://doi.org/10.1016/j.accre.2024.01.004 |
container_title |
Advances in Climate Change Research |
container_volume |
15 |
container_issue |
2 |
container_start_page |
285 |
op_container_end_page |
296 |
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1810471264616185856 |