The impacts of volcanic eruptions and climate changes on the development of Hani peatland in northeastern China during the Holocene
Peatland development is closely correlated with regional environment and climate changes. In this study, two sediment cores covering the past 13.8 cal kyr BP were collected from Hani peatland in northeastern China. The organic content, carbonate content, Rb/Sr and Zr/Rb ratios were obtained to discu...
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ftchinacascieeca:oai:ir.ieecas.cn:361006/16129 2023-06-11T04:14:34+02:00 The impacts of volcanic eruptions and climate changes on the development of Hani peatland in northeastern China during the Holocene Shi, Ge Yan, Hong Zhang, Wenchao Dodson, John Heijnis, Henk 2021-05-01 http://ir.ieecas.cn/handle/361006/16129 https://doi.org/10.1016/j.jseaes.2021.104691 英语 eng PERGAMON-ELSEVIER SCIENCE LTD JOURNAL OF ASIAN EARTH SCIENCES http://ir.ieecas.cn/handle/361006/16129 doi:10.1016/j.jseaes.2021.104691 Northeastern China Holocene Peat development Climate changes Volcanic eruptions Geology Geosciences Multidisciplinary 期刊论文 2021 ftchinacascieeca https://doi.org/10.1016/j.jseaes.2021.104691 2023-05-08T13:25:10Z Peatland development is closely correlated with regional environment and climate changes. In this study, two sediment cores covering the past 13.8 cal kyr BP were collected from Hani peatland in northeastern China. The organic content, carbonate content, Rb/Sr and Zr/Rb ratios were obtained to discuss the peat development process and associated environment and climate changes. The results showed that there were two deposition events in Hani peatland during 11.2-9.3 cal kyr BP and 2-1.4 cal kyr BP, when the organic content and Rb/Sr ratio decreased sharply, the carbonate content and Zr/Rb ratio increased dramatically. The synchronous occurrence of these two events and nearby volcanic eruptions, combining with tephra observed in sediments, indicated that volcanic activities have some impacts on the peat development. Except for the two events, the organic content of peat sediments increased gradually from the early to mid Holocene, and was highest at 8-6 cal kyr BP, then decreased gradually from the mid to late Holocene. The comparison with regional vegetation and paleoclimate records, together with the chemical weathering intensity obtained from the Rb/Sr, suggested that the orbital scale peat development in Hani during the Holocene was closely coupled with regional climate changes, including both temperature and precipitation. In addition, the 0.5-2 ka band filtering results of organic content showed similar oscillations with the drift ice indices of the North Atlantic Ocean and the atmospheric Delta C-14 record, implying that the North Atlantic climate and solar activities could also leave footprints on peat development of Hani on millennial timescale. Report North Atlantic Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) Hani ENVELOPE(-20.331,-20.331,63.441,63.441) Journal of Asian Earth Sciences 210 104691 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
topic |
Northeastern China Holocene Peat development Climate changes Volcanic eruptions Geology Geosciences Multidisciplinary |
spellingShingle |
Northeastern China Holocene Peat development Climate changes Volcanic eruptions Geology Geosciences Multidisciplinary Shi, Ge Yan, Hong Zhang, Wenchao Dodson, John Heijnis, Henk The impacts of volcanic eruptions and climate changes on the development of Hani peatland in northeastern China during the Holocene |
topic_facet |
Northeastern China Holocene Peat development Climate changes Volcanic eruptions Geology Geosciences Multidisciplinary |
description |
Peatland development is closely correlated with regional environment and climate changes. In this study, two sediment cores covering the past 13.8 cal kyr BP were collected from Hani peatland in northeastern China. The organic content, carbonate content, Rb/Sr and Zr/Rb ratios were obtained to discuss the peat development process and associated environment and climate changes. The results showed that there were two deposition events in Hani peatland during 11.2-9.3 cal kyr BP and 2-1.4 cal kyr BP, when the organic content and Rb/Sr ratio decreased sharply, the carbonate content and Zr/Rb ratio increased dramatically. The synchronous occurrence of these two events and nearby volcanic eruptions, combining with tephra observed in sediments, indicated that volcanic activities have some impacts on the peat development. Except for the two events, the organic content of peat sediments increased gradually from the early to mid Holocene, and was highest at 8-6 cal kyr BP, then decreased gradually from the mid to late Holocene. The comparison with regional vegetation and paleoclimate records, together with the chemical weathering intensity obtained from the Rb/Sr, suggested that the orbital scale peat development in Hani during the Holocene was closely coupled with regional climate changes, including both temperature and precipitation. In addition, the 0.5-2 ka band filtering results of organic content showed similar oscillations with the drift ice indices of the North Atlantic Ocean and the atmospheric Delta C-14 record, implying that the North Atlantic climate and solar activities could also leave footprints on peat development of Hani on millennial timescale. |
format |
Report |
author |
Shi, Ge Yan, Hong Zhang, Wenchao Dodson, John Heijnis, Henk |
author_facet |
Shi, Ge Yan, Hong Zhang, Wenchao Dodson, John Heijnis, Henk |
author_sort |
Shi, Ge |
title |
The impacts of volcanic eruptions and climate changes on the development of Hani peatland in northeastern China during the Holocene |
title_short |
The impacts of volcanic eruptions and climate changes on the development of Hani peatland in northeastern China during the Holocene |
title_full |
The impacts of volcanic eruptions and climate changes on the development of Hani peatland in northeastern China during the Holocene |
title_fullStr |
The impacts of volcanic eruptions and climate changes on the development of Hani peatland in northeastern China during the Holocene |
title_full_unstemmed |
The impacts of volcanic eruptions and climate changes on the development of Hani peatland in northeastern China during the Holocene |
title_sort |
impacts of volcanic eruptions and climate changes on the development of hani peatland in northeastern china during the holocene |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2021 |
url |
http://ir.ieecas.cn/handle/361006/16129 https://doi.org/10.1016/j.jseaes.2021.104691 |
long_lat |
ENVELOPE(-20.331,-20.331,63.441,63.441) |
geographic |
Hani |
geographic_facet |
Hani |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
JOURNAL OF ASIAN EARTH SCIENCES http://ir.ieecas.cn/handle/361006/16129 doi:10.1016/j.jseaes.2021.104691 |
op_doi |
https://doi.org/10.1016/j.jseaes.2021.104691 |
container_title |
Journal of Asian Earth Sciences |
container_volume |
210 |
container_start_page |
104691 |
_version_ |
1768392671119802368 |