Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau
The alpine ecosystem is very sensitive to environmental change due to global and local disturbances. The alpine ecosystem degradation, characterized by reducing vegetation coverage or biomass, has been occurring in the Qinghai-Tibet Plateau, which alters local energy balance, and water and biochemic...
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ftchinacadscimhe:oai:ir.imde.ac.cn:131551/10565 2023-05-15T17:56:55+02:00 Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau Hu, Hongchang Wang, Genxu Liu, Guangsheng Li, Taibing Ren, Dongxing Wang, Yibo Cheng, Huiyan Wang, Junfeng 2009 http://ir.imde.ac.cn/handle/131551/10565 https://doi.org/10.1007/s00254-008-1417-7 英语 eng ENVIRONMENTAL GEOLOGY Hu, Hongchang,Wang, Genxu,Liu, Guangsheng,et al. Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau[J]. ENVIRONMENTAL GEOLOGY,2009,57(6):1391-1397. http://ir.imde.ac.cn/handle/131551/10565 doi:10.1007/s00254-008-1417-7 Alpine Ecosystem Degradation Soil Temperature Vegetation Coverage Seasonal Frozen Soil Permafrost Science & Technology Life Sciences & Biomedicine Physical Sciences Environmental Sciences & Ecology Geology Water Resources CLIMATIC-CHANGE ACTIVE LAYER CHINA ALASKA Environmental Sciences Geosciences Multidisciplinary Article 期刊论文 2009 ftchinacadscimhe https://doi.org/10.1007/s00254-008-1417-7 2022-12-19T18:19:15Z The alpine ecosystem is very sensitive to environmental change due to global and local disturbances. The alpine ecosystem degradation, characterized by reducing vegetation coverage or biomass, has been occurring in the Qinghai-Tibet Plateau, which alters local energy balance, and water and biochemical cycles. However, detailed characterization of the ecosystem degradation effect is lack in literature. In this study, the impact of alpine ecosystem degradation on soil temperature for seasonal frozen soil and permafrost are examined. The vegetation coverage is used to indicate the degree of ecosystems degradation. Daily soil temperature is monitored at different depths for different vegetation coverage, for both permafrost and seasonal frozen soils. Results show that under the insulating effort of the vegetation, the freezing and thawing process become quicker and steeper, and the start of the freezing and thawing process moves up due to the insulating effort of the vegetation. The influence of vegetation coverage on the freezing process is more evident than the thawing process; with the decrease of vegetation coverage, the integral of frozen depth increases for seasonal frozen soil, but is vice versa for permafrost. Article in Journal/Newspaper permafrost Alaska IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) Environmental Geology 57 6 1391 1397 |
institution |
Open Polar |
collection |
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) |
op_collection_id |
ftchinacadscimhe |
language |
English |
topic |
Alpine Ecosystem Degradation Soil Temperature Vegetation Coverage Seasonal Frozen Soil Permafrost Science & Technology Life Sciences & Biomedicine Physical Sciences Environmental Sciences & Ecology Geology Water Resources CLIMATIC-CHANGE ACTIVE LAYER CHINA ALASKA Environmental Sciences Geosciences Multidisciplinary |
spellingShingle |
Alpine Ecosystem Degradation Soil Temperature Vegetation Coverage Seasonal Frozen Soil Permafrost Science & Technology Life Sciences & Biomedicine Physical Sciences Environmental Sciences & Ecology Geology Water Resources CLIMATIC-CHANGE ACTIVE LAYER CHINA ALASKA Environmental Sciences Geosciences Multidisciplinary Hu, Hongchang Wang, Genxu Liu, Guangsheng Li, Taibing Ren, Dongxing Wang, Yibo Cheng, Huiyan Wang, Junfeng Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau |
topic_facet |
Alpine Ecosystem Degradation Soil Temperature Vegetation Coverage Seasonal Frozen Soil Permafrost Science & Technology Life Sciences & Biomedicine Physical Sciences Environmental Sciences & Ecology Geology Water Resources CLIMATIC-CHANGE ACTIVE LAYER CHINA ALASKA Environmental Sciences Geosciences Multidisciplinary |
description |
The alpine ecosystem is very sensitive to environmental change due to global and local disturbances. The alpine ecosystem degradation, characterized by reducing vegetation coverage or biomass, has been occurring in the Qinghai-Tibet Plateau, which alters local energy balance, and water and biochemical cycles. However, detailed characterization of the ecosystem degradation effect is lack in literature. In this study, the impact of alpine ecosystem degradation on soil temperature for seasonal frozen soil and permafrost are examined. The vegetation coverage is used to indicate the degree of ecosystems degradation. Daily soil temperature is monitored at different depths for different vegetation coverage, for both permafrost and seasonal frozen soils. Results show that under the insulating effort of the vegetation, the freezing and thawing process become quicker and steeper, and the start of the freezing and thawing process moves up due to the insulating effort of the vegetation. The influence of vegetation coverage on the freezing process is more evident than the thawing process; with the decrease of vegetation coverage, the integral of frozen depth increases for seasonal frozen soil, but is vice versa for permafrost. |
format |
Article in Journal/Newspaper |
author |
Hu, Hongchang Wang, Genxu Liu, Guangsheng Li, Taibing Ren, Dongxing Wang, Yibo Cheng, Huiyan Wang, Junfeng |
author_facet |
Hu, Hongchang Wang, Genxu Liu, Guangsheng Li, Taibing Ren, Dongxing Wang, Yibo Cheng, Huiyan Wang, Junfeng |
author_sort |
Hu, Hongchang |
title |
Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau |
title_short |
Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau |
title_full |
Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau |
title_fullStr |
Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau |
title_full_unstemmed |
Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau |
title_sort |
influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on qinghai-tibet plateau |
publishDate |
2009 |
url |
http://ir.imde.ac.cn/handle/131551/10565 https://doi.org/10.1007/s00254-008-1417-7 |
genre |
permafrost Alaska |
genre_facet |
permafrost Alaska |
op_relation |
ENVIRONMENTAL GEOLOGY Hu, Hongchang,Wang, Genxu,Liu, Guangsheng,et al. Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau[J]. ENVIRONMENTAL GEOLOGY,2009,57(6):1391-1397. http://ir.imde.ac.cn/handle/131551/10565 doi:10.1007/s00254-008-1417-7 |
op_doi |
https://doi.org/10.1007/s00254-008-1417-7 |
container_title |
Environmental Geology |
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57 |
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6 |
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1391 |
op_container_end_page |
1397 |
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1766165237971550208 |