Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China
Pollen samples from peat sediments on the south bank of the Heilongjiang River in northern Northeast China (NE China) were analyzed to reconstruct the historical response of vegetation to climate change since 7800 cal yr BP. Vegetation was found to have experienced five successions from cold-tempera...
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fthindawi:oai:hindawi.com:10.1155/2016/2450697 2023-05-15T17:57:51+02:00 Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China Chao Zhao Xiaoqiang Li Xinying Zhou Keliang Zhao Qing Yang 2016 https://doi.org/10.1155/2016/2450697 en eng Advances in Meteorology https://doi.org/10.1155/2016/2450697 Copyright © 2016 Chao Zhao et al. Research Article 2016 fthindawi https://doi.org/10.1155/2016/2450697 2019-05-26T05:09:19Z Pollen samples from peat sediments on the south bank of the Heilongjiang River in northern Northeast China (NE China) were analyzed to reconstruct the historical response of vegetation to climate change since 7800 cal yr BP. Vegetation was found to have experienced five successions from cold-temperate mixed coniferous and broadleaved forest to forest-steppe, steppe-woodland, steppe, and finally meadow-woodland. From 7800 to 7300 cal yr BP, the study area was warmer than present, and Betula, Larix, and Picea-dominated mixed coniferous and broadleaved forests thrived. Two cooling events at 7300 cal yr BP and 4500 cal yr BP led to a decrease in Betula and other broadleaved forests, whereas herbs of Poaceae expanded, leading to forest-steppe and then steppe-woodland environments. After 2500 cal yr BP, reduced temperatures and a decrease in evaporation rates are likely to have resulted in permafrost expansion and surface ponding, with meadow and isolated coniferous forests developing a resistance to the cold-wet environment. The Holocene warm period in NE China (7800–7300 cal yr BP) could have resulted in a strengthening of precipitation in northernmost NE China and encouraged the development of broadleaved forests. Article in Journal/Newspaper permafrost Hindawi Publishing Corporation Advances in Meteorology 2016 1 11 |
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Hindawi Publishing Corporation |
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English |
description |
Pollen samples from peat sediments on the south bank of the Heilongjiang River in northern Northeast China (NE China) were analyzed to reconstruct the historical response of vegetation to climate change since 7800 cal yr BP. Vegetation was found to have experienced five successions from cold-temperate mixed coniferous and broadleaved forest to forest-steppe, steppe-woodland, steppe, and finally meadow-woodland. From 7800 to 7300 cal yr BP, the study area was warmer than present, and Betula, Larix, and Picea-dominated mixed coniferous and broadleaved forests thrived. Two cooling events at 7300 cal yr BP and 4500 cal yr BP led to a decrease in Betula and other broadleaved forests, whereas herbs of Poaceae expanded, leading to forest-steppe and then steppe-woodland environments. After 2500 cal yr BP, reduced temperatures and a decrease in evaporation rates are likely to have resulted in permafrost expansion and surface ponding, with meadow and isolated coniferous forests developing a resistance to the cold-wet environment. The Holocene warm period in NE China (7800–7300 cal yr BP) could have resulted in a strengthening of precipitation in northernmost NE China and encouraged the development of broadleaved forests. |
format |
Article in Journal/Newspaper |
author |
Chao Zhao Xiaoqiang Li Xinying Zhou Keliang Zhao Qing Yang |
spellingShingle |
Chao Zhao Xiaoqiang Li Xinying Zhou Keliang Zhao Qing Yang Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China |
author_facet |
Chao Zhao Xiaoqiang Li Xinying Zhou Keliang Zhao Qing Yang |
author_sort |
Chao Zhao |
title |
Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China |
title_short |
Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China |
title_full |
Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China |
title_fullStr |
Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China |
title_full_unstemmed |
Holocene Vegetation Succession and Response to Climate Change on the South Bank of the Heilongjiang-Amur River, Mohe County, Northeast China |
title_sort |
holocene vegetation succession and response to climate change on the south bank of the heilongjiang-amur river, mohe county, northeast china |
publisher |
Advances in Meteorology |
publishDate |
2016 |
url |
https://doi.org/10.1155/2016/2450697 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
https://doi.org/10.1155/2016/2450697 |
op_rights |
Copyright © 2016 Chao Zhao et al. |
op_doi |
https://doi.org/10.1155/2016/2450697 |
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Advances in Meteorology |
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2016 |
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1 |
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11 |
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1766166351759540224 |