Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture
Active layer thickness (ALT) of permafrost changes significantly under the combined influence of human activities and climate warming, which has a significant impact on the ecological environment, hydrology, and engineering construction in cold regions. The spatial differentiation of Active layer th...
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ftdoajarticles:oai:doaj.org/article:784a69031d284cb9b69864a8135641cc 2023-05-15T13:02:58+02:00 Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture Daqing Zhan Miao Li Yang Xiao Haoran Man Shuying Zang 2023-01-01T00:00:00Z https://doi.org/10.3389/feart.2022.1066662 https://doaj.org/article/784a69031d284cb9b69864a8135641cc EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/feart.2022.1066662/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2022.1066662 https://doaj.org/article/784a69031d284cb9b69864a8135641cc Frontiers in Earth Science, Vol 10 (2023) active layer thickness Geodetector spatial differentiation Da Hinggan Ling Prefecture stefan equation Science Q article 2023 ftdoajarticles https://doi.org/10.3389/feart.2022.1066662 2023-01-22T01:30:11Z Active layer thickness (ALT) of permafrost changes significantly under the combined influence of human activities and climate warming, which has a significant impact on the ecological environment, hydrology, and engineering construction in cold regions. The spatial differentiation of Active layer thickness and its influencing factors have become one of the hot topics in the field of cryopedology in recent years, but there are few studies in the Da Hinggan Ling Prefecture (DHLP). In this study, the Stefan equation was used to simulate the Active layer thickness in the Da Hinggan Ling Prefecture, and the factor detection and interaction detection functions of geodetector were used to analyze the factors affecting the spatial differentiation of Active layer thickness from both natural and humanity aspects. The results showed that Active layer thickness in the Da Hinggan Ling Prefecture ranges from 58.82 cm to 212.55 cm, the determinant coefficient R2, MAE, RMSE between simulation results and the sampling points data were 0.86, 11.25 (cm) and 13.25 (cm), respectively. Lower Active layer thickness values are mainly distributed higher elevations in the west, which are dominated by forest (average ALT: 136.94 cm) and wetlands (average ALT: 71.88 cm), while the higher values are distributed on cultivated land (average ALT: 170.35 cm) and construction land (average ALT: 176.49 cm) in the southeast. Among the influencing factors, elevation is significantly negatively correlated with ALT. followed by summer mean LST, SLHF and snow depth. NDVI and SM has the strong explanation power for the spatial differentiation of ALT in factor detection. Regarding interactions, the explanatory power of slope ∩ snow depth is the highest of 0.83, followed by the elevation ∩ distance to settlements. The results can provide reference for the formulation of ecological environmental protection and engineering construction policies in cold regions. Article in Journal/Newspaper Active layer thickness permafrost Directory of Open Access Journals: DOAJ Articles Frontiers in Earth Science 10 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
active layer thickness Geodetector spatial differentiation Da Hinggan Ling Prefecture stefan equation Science Q |
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active layer thickness Geodetector spatial differentiation Da Hinggan Ling Prefecture stefan equation Science Q Daqing Zhan Miao Li Yang Xiao Haoran Man Shuying Zang Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture |
topic_facet |
active layer thickness Geodetector spatial differentiation Da Hinggan Ling Prefecture stefan equation Science Q |
description |
Active layer thickness (ALT) of permafrost changes significantly under the combined influence of human activities and climate warming, which has a significant impact on the ecological environment, hydrology, and engineering construction in cold regions. The spatial differentiation of Active layer thickness and its influencing factors have become one of the hot topics in the field of cryopedology in recent years, but there are few studies in the Da Hinggan Ling Prefecture (DHLP). In this study, the Stefan equation was used to simulate the Active layer thickness in the Da Hinggan Ling Prefecture, and the factor detection and interaction detection functions of geodetector were used to analyze the factors affecting the spatial differentiation of Active layer thickness from both natural and humanity aspects. The results showed that Active layer thickness in the Da Hinggan Ling Prefecture ranges from 58.82 cm to 212.55 cm, the determinant coefficient R2, MAE, RMSE between simulation results and the sampling points data were 0.86, 11.25 (cm) and 13.25 (cm), respectively. Lower Active layer thickness values are mainly distributed higher elevations in the west, which are dominated by forest (average ALT: 136.94 cm) and wetlands (average ALT: 71.88 cm), while the higher values are distributed on cultivated land (average ALT: 170.35 cm) and construction land (average ALT: 176.49 cm) in the southeast. Among the influencing factors, elevation is significantly negatively correlated with ALT. followed by summer mean LST, SLHF and snow depth. NDVI and SM has the strong explanation power for the spatial differentiation of ALT in factor detection. Regarding interactions, the explanatory power of slope ∩ snow depth is the highest of 0.83, followed by the elevation ∩ distance to settlements. The results can provide reference for the formulation of ecological environmental protection and engineering construction policies in cold regions. |
format |
Article in Journal/Newspaper |
author |
Daqing Zhan Miao Li Yang Xiao Haoran Man Shuying Zang |
author_facet |
Daqing Zhan Miao Li Yang Xiao Haoran Man Shuying Zang |
author_sort |
Daqing Zhan |
title |
Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture |
title_short |
Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture |
title_full |
Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture |
title_fullStr |
Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture |
title_full_unstemmed |
Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture |
title_sort |
spatial differentiation and influencing factors of active layer thickness in the da hinggan ling prefecture |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/feart.2022.1066662 https://doaj.org/article/784a69031d284cb9b69864a8135641cc |
genre |
Active layer thickness permafrost |
genre_facet |
Active layer thickness permafrost |
op_source |
Frontiers in Earth Science, Vol 10 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/feart.2022.1066662/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2022.1066662 https://doaj.org/article/784a69031d284cb9b69864a8135641cc |
op_doi |
https://doi.org/10.3389/feart.2022.1066662 |
container_title |
Frontiers in Earth Science |
container_volume |
10 |
_version_ |
1766325178217791488 |