Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China
Abstract Thermokarst terrain is developing at an accelerating pace in the ice‐rich permafrost on the Qinghai – Tibet Plateau (QTP), China, and the most dramatic of these terrain‐altering thermokarsts is retrogressive thaw slump (RTS). The freeze–thaw erosion (FTE) impacts are sharply increasing on t...
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crwiley:10.1002/ldr.4631 2024-06-02T08:07:59+00:00 Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China Jiao, Chenglong Wang, Yizhao Shan, Yi He, Peifeng He, Junlin Guangdong Provincial Key Laboratory of Modern Civil Engineering Technology 2023 http://dx.doi.org/10.1002/ldr.4631 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ldr.4631 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ldr.4631 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Land Degradation & Development volume 34, issue 9, page 2573-2588 ISSN 1085-3278 1099-145X journal-article 2023 crwiley https://doi.org/10.1002/ldr.4631 2024-05-06T07:04:39Z Abstract Thermokarst terrain is developing at an accelerating pace in the ice‐rich permafrost on the Qinghai – Tibet Plateau (QTP), China, and the most dramatic of these terrain‐altering thermokarsts is retrogressive thaw slump (RTS). The freeze–thaw erosion (FTE) impacts are sharply increasing on the Plateau due to RTS, especially as a result of the migration of fine sediments in cold climates, these impacts are still not quantified due to the limitation of hydro‐thermal‐mass transport laws in RTS development. Moreover, it is difficult to assess the impact of RTS on the ecology and environment, especially on soil erosion. This study developed a heat–water‐mass transport coupled model of a RTS in the Beiluhe River Region on the QTP, considering the actual topography, water‐ice phase change, latent heat, and surface heat exchange layer. Based on the observed data of ground temperature, unfrozen water content, and heat flux, the coupled model herein is practicable for presenting the geotemperature regime and groundwater flow in the RTS area, thereby quantifying the ice‐rich permafrost thaw and mass wasting. The results presented indicate that: (1) the seepage velocity of the superficial zone (0–1.5 m depth) is two orders of magnitude higher than that of the permafrost table; (2) the mean ice‐rich permafrost thaw volume was 13.4 m 2 from 2016 to 2021; and (3) the cumulative mass transport volume was 22 m 2 from July 2020 to September 2021. In addition, the relation between the FTE (shown as the migration of sediments) and the amount of ground ice ablation can be fitted by an exponential equation. This work proposes a reliable method for quantifying the effect of FTE and is helpful to assess the eco‐environmental impacts of RTS. Article in Journal/Newspaper Ice permafrost Thermokarst Wiley Online Library Land Degradation & Development 34 9 2573 2588 |
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Wiley Online Library |
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English |
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Abstract Thermokarst terrain is developing at an accelerating pace in the ice‐rich permafrost on the Qinghai – Tibet Plateau (QTP), China, and the most dramatic of these terrain‐altering thermokarsts is retrogressive thaw slump (RTS). The freeze–thaw erosion (FTE) impacts are sharply increasing on the Plateau due to RTS, especially as a result of the migration of fine sediments in cold climates, these impacts are still not quantified due to the limitation of hydro‐thermal‐mass transport laws in RTS development. Moreover, it is difficult to assess the impact of RTS on the ecology and environment, especially on soil erosion. This study developed a heat–water‐mass transport coupled model of a RTS in the Beiluhe River Region on the QTP, considering the actual topography, water‐ice phase change, latent heat, and surface heat exchange layer. Based on the observed data of ground temperature, unfrozen water content, and heat flux, the coupled model herein is practicable for presenting the geotemperature regime and groundwater flow in the RTS area, thereby quantifying the ice‐rich permafrost thaw and mass wasting. The results presented indicate that: (1) the seepage velocity of the superficial zone (0–1.5 m depth) is two orders of magnitude higher than that of the permafrost table; (2) the mean ice‐rich permafrost thaw volume was 13.4 m 2 from 2016 to 2021; and (3) the cumulative mass transport volume was 22 m 2 from July 2020 to September 2021. In addition, the relation between the FTE (shown as the migration of sediments) and the amount of ground ice ablation can be fitted by an exponential equation. This work proposes a reliable method for quantifying the effect of FTE and is helpful to assess the eco‐environmental impacts of RTS. |
author2 |
Guangdong Provincial Key Laboratory of Modern Civil Engineering Technology |
format |
Article in Journal/Newspaper |
author |
Jiao, Chenglong Wang, Yizhao Shan, Yi He, Peifeng He, Junlin |
spellingShingle |
Jiao, Chenglong Wang, Yizhao Shan, Yi He, Peifeng He, Junlin Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China |
author_facet |
Jiao, Chenglong Wang, Yizhao Shan, Yi He, Peifeng He, Junlin |
author_sort |
Jiao, Chenglong |
title |
Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China |
title_short |
Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China |
title_full |
Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China |
title_fullStr |
Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China |
title_full_unstemmed |
Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China |
title_sort |
quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the qinghai–tibet plateau, china |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/ldr.4631 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ldr.4631 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ldr.4631 |
genre |
Ice permafrost Thermokarst |
genre_facet |
Ice permafrost Thermokarst |
op_source |
Land Degradation & Development volume 34, issue 9, page 2573-2588 ISSN 1085-3278 1099-145X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ldr.4631 |
container_title |
Land Degradation & Development |
container_volume |
34 |
container_issue |
9 |
container_start_page |
2573 |
op_container_end_page |
2588 |
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1800753138257362944 |