Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China
Alpine ecosystems in permafrost region are extremely sensitive to climate changes. To determine spatial pattern variations in alpine meadow and alpine steppe biomass dynamics in the permafrost region of the Qinghai-Tibet Plateau, China, calibrated with historical datasets of above-ground biomass pro...
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ftchinacadscimhe:oai:ir.imde.ac.cn:131551/5565 2023-05-15T17:56:39+02:00 Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China Zhang Yu Wang Genxu Wang Yibo 2010 http://ir.imde.ac.cn/handle/131551/5565 https://doi.org/10.1007/s11629-010-2011-5 英语 eng JOURNAL OF MOUNTAIN SCIENCE Zhang Yu,Wang Genxu,Wang Yibo. Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(4):301-314. http://ir.imde.ac.cn/handle/131551/5565 doi:10.1007/s11629-010-2011-5 4 Permafrost Change Qinghai-tibetan Plateau Alpine Ecosystem Grassland Biomass Climate Change Response Model Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology LAND-COVER CHANGES WINTER SNOW MODEL ALASKA COMMUNITIES DISTURBANCE ECOSYSTEMS LANDSCAPE VARIABLES DYNAMICS Environmental Sciences Article 期刊论文 2010 ftchinacadscimhe https://doi.org/10.1007/s11629-010-2011-5 2022-12-19T18:18:04Z Alpine ecosystems in permafrost region are extremely sensitive to climate changes. To determine spatial pattern variations in alpine meadow and alpine steppe biomass dynamics in the permafrost region of the Qinghai-Tibet Plateau, China, calibrated with historical datasets of above-ground biomass production within the permafrost region's two main ecosystems, an ecosystem-biomass model was developed by employing empirical spatialdistribution models of the study region's precipitation, air temperature and soil temperature. This model was then successfully used to simulate the spatio-temporal variations in annual alpine ecosystem biomass production under climate change. For a 0.44A degrees C decade-1 rise in air temperature, the model predicted that the biomasses of alpine meadow and alpine steppe remained roughly the same if annual precipitation increased by 8 mm per decade(-1), but the biomasses were decreased by 2.7% and 2.4%, respectively if precipitation was constant. For a 2.2A degrees C decade(-1) rise in air temperature coupled with a 12 mm decade(-1) rise in precipitation, the model predicted that the biomass of alpine meadow was unchanged or slightly increased, while that of alpine steppe was increased by 5.2%. However, in the absence of any rise in precipitation, the model predicted 6.8% and 4.6% declines in alpine meadow and alpine steppe biomasses, respectively. The response of alpine steppe biomass to the rising air temperatures and precipitation was significantly lesser and greater, respectively than that of alpine meadow biomass. A better understanding of the difference in alpine ecosystem biomass production under climate change is greatly significant with respect to the influence of climate change on the carbon and water cycles in the permafrost regions of the Qinghai-Tibet Plateau. Article in Journal/Newspaper permafrost Alaska IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) Journal of Mountain Science 7 4 301 314 |
institution |
Open Polar |
collection |
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) |
op_collection_id |
ftchinacadscimhe |
language |
English |
topic |
Permafrost Change Qinghai-tibetan Plateau Alpine Ecosystem Grassland Biomass Climate Change Response Model Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology LAND-COVER CHANGES WINTER SNOW MODEL ALASKA COMMUNITIES DISTURBANCE ECOSYSTEMS LANDSCAPE VARIABLES DYNAMICS Environmental Sciences |
spellingShingle |
Permafrost Change Qinghai-tibetan Plateau Alpine Ecosystem Grassland Biomass Climate Change Response Model Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology LAND-COVER CHANGES WINTER SNOW MODEL ALASKA COMMUNITIES DISTURBANCE ECOSYSTEMS LANDSCAPE VARIABLES DYNAMICS Environmental Sciences Zhang Yu Wang Genxu Wang Yibo Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China |
topic_facet |
Permafrost Change Qinghai-tibetan Plateau Alpine Ecosystem Grassland Biomass Climate Change Response Model Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology LAND-COVER CHANGES WINTER SNOW MODEL ALASKA COMMUNITIES DISTURBANCE ECOSYSTEMS LANDSCAPE VARIABLES DYNAMICS Environmental Sciences |
description |
Alpine ecosystems in permafrost region are extremely sensitive to climate changes. To determine spatial pattern variations in alpine meadow and alpine steppe biomass dynamics in the permafrost region of the Qinghai-Tibet Plateau, China, calibrated with historical datasets of above-ground biomass production within the permafrost region's two main ecosystems, an ecosystem-biomass model was developed by employing empirical spatialdistribution models of the study region's precipitation, air temperature and soil temperature. This model was then successfully used to simulate the spatio-temporal variations in annual alpine ecosystem biomass production under climate change. For a 0.44A degrees C decade-1 rise in air temperature, the model predicted that the biomasses of alpine meadow and alpine steppe remained roughly the same if annual precipitation increased by 8 mm per decade(-1), but the biomasses were decreased by 2.7% and 2.4%, respectively if precipitation was constant. For a 2.2A degrees C decade(-1) rise in air temperature coupled with a 12 mm decade(-1) rise in precipitation, the model predicted that the biomass of alpine meadow was unchanged or slightly increased, while that of alpine steppe was increased by 5.2%. However, in the absence of any rise in precipitation, the model predicted 6.8% and 4.6% declines in alpine meadow and alpine steppe biomasses, respectively. The response of alpine steppe biomass to the rising air temperatures and precipitation was significantly lesser and greater, respectively than that of alpine meadow biomass. A better understanding of the difference in alpine ecosystem biomass production under climate change is greatly significant with respect to the influence of climate change on the carbon and water cycles in the permafrost regions of the Qinghai-Tibet Plateau. |
format |
Article in Journal/Newspaper |
author |
Zhang Yu Wang Genxu Wang Yibo |
author_facet |
Zhang Yu Wang Genxu Wang Yibo |
author_sort |
Zhang Yu |
title |
Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China |
title_short |
Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China |
title_full |
Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China |
title_fullStr |
Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China |
title_full_unstemmed |
Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China |
title_sort |
response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the qinghai-tibet plateau, china |
publishDate |
2010 |
url |
http://ir.imde.ac.cn/handle/131551/5565 https://doi.org/10.1007/s11629-010-2011-5 |
genre |
permafrost Alaska |
genre_facet |
permafrost Alaska |
op_relation |
JOURNAL OF MOUNTAIN SCIENCE Zhang Yu,Wang Genxu,Wang Yibo. Response of biomass spatial pattern of alpine vegetation to climate change in permafrost region of the Qinghai-Tibet Plateau, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(4):301-314. http://ir.imde.ac.cn/handle/131551/5565 doi:10.1007/s11629-010-2011-5 |
op_rights |
4 |
op_doi |
https://doi.org/10.1007/s11629-010-2011-5 |
container_title |
Journal of Mountain Science |
container_volume |
7 |
container_issue |
4 |
container_start_page |
301 |
op_container_end_page |
314 |
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1766164880222584832 |