Impacts of Grassland Vegetation Cover on the Active-Layer Thermal Regime, Northeast Qinghai-Tibet Plateau, China
The impact of vegetation cover on the active-layer thermal regime was examined in an alpine meadow located in the permafrost region of Qinghai-Tibet over a three-year period. A high vegetation cover (93%) delayed thawing and freezing at a given depth relative to sites with lower covers (65%, 30% and...
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ftxiamenuniv:oai:dspace.xmu.edu.cn:2288/60073 2023-05-15T17:56:48+02:00 Impacts of Grassland Vegetation Cover on the Active-Layer Thermal Regime, Northeast Qinghai-Tibet Plateau, China Wang, G. X. Liu, L. A. Liu, G. S. Hu, H. C. Li, T. B. 刘广山 2010 http://dspace.xmu.edu.cn/handle/2288/60073 en_US eng Permafrost and Periglacial Processes,21(4):335-344 1045-6740 ISI:000285846900005 http://dspace.xmu.edu.cn/handle/2288/60073 permafrost vegetation cover change soil thermal properties climate change impact Article 2010 ftxiamenuniv 2020-07-21T11:31:55Z The impact of vegetation cover on the active-layer thermal regime was examined in an alpine meadow located in the permafrost region of Qinghai-Tibet over a three-year period. A high vegetation cover (93%) delayed thawing and freezing at a given depth relative to sites with lower covers (65%, 30% and 5%). Low vegetation covers exhibited greater annual variability in soil temperatures, and may be more sensitive to changes in air temperature. Low vegetation covers are also linked to higher thermal diffusivity and thermal conductivity in the soils. The maintenance of a high vegetation cover on alpine meadows reduces the impact of heat cycling on the permafrost, may minimise the impact of climate change and helps preserve the microenvironment of the soil. Copyright (C) 2010 John Wiley & Sons, Ltd. Article in Journal/Newspaper permafrost Permafrost and Periglacial Processes Xiamen University Institutional Repository |
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Open Polar |
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Xiamen University Institutional Repository |
op_collection_id |
ftxiamenuniv |
language |
English |
topic |
permafrost vegetation cover change soil thermal properties climate change impact |
spellingShingle |
permafrost vegetation cover change soil thermal properties climate change impact Wang, G. X. Liu, L. A. Liu, G. S. Hu, H. C. Li, T. B. 刘广山 Impacts of Grassland Vegetation Cover on the Active-Layer Thermal Regime, Northeast Qinghai-Tibet Plateau, China |
topic_facet |
permafrost vegetation cover change soil thermal properties climate change impact |
description |
The impact of vegetation cover on the active-layer thermal regime was examined in an alpine meadow located in the permafrost region of Qinghai-Tibet over a three-year period. A high vegetation cover (93%) delayed thawing and freezing at a given depth relative to sites with lower covers (65%, 30% and 5%). Low vegetation covers exhibited greater annual variability in soil temperatures, and may be more sensitive to changes in air temperature. Low vegetation covers are also linked to higher thermal diffusivity and thermal conductivity in the soils. The maintenance of a high vegetation cover on alpine meadows reduces the impact of heat cycling on the permafrost, may minimise the impact of climate change and helps preserve the microenvironment of the soil. Copyright (C) 2010 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Wang, G. X. Liu, L. A. Liu, G. S. Hu, H. C. Li, T. B. 刘广山 |
author_facet |
Wang, G. X. Liu, L. A. Liu, G. S. Hu, H. C. Li, T. B. 刘广山 |
author_sort |
Wang, G. X. |
title |
Impacts of Grassland Vegetation Cover on the Active-Layer Thermal Regime, Northeast Qinghai-Tibet Plateau, China |
title_short |
Impacts of Grassland Vegetation Cover on the Active-Layer Thermal Regime, Northeast Qinghai-Tibet Plateau, China |
title_full |
Impacts of Grassland Vegetation Cover on the Active-Layer Thermal Regime, Northeast Qinghai-Tibet Plateau, China |
title_fullStr |
Impacts of Grassland Vegetation Cover on the Active-Layer Thermal Regime, Northeast Qinghai-Tibet Plateau, China |
title_full_unstemmed |
Impacts of Grassland Vegetation Cover on the Active-Layer Thermal Regime, Northeast Qinghai-Tibet Plateau, China |
title_sort |
impacts of grassland vegetation cover on the active-layer thermal regime, northeast qinghai-tibet plateau, china |
publishDate |
2010 |
url |
http://dspace.xmu.edu.cn/handle/2288/60073 |
genre |
permafrost Permafrost and Periglacial Processes |
genre_facet |
permafrost Permafrost and Periglacial Processes |
op_relation |
Permafrost and Periglacial Processes,21(4):335-344 1045-6740 ISI:000285846900005 http://dspace.xmu.edu.cn/handle/2288/60073 |
_version_ |
1766165085325099008 |