Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period
Ninety-four sites worldwide have sufficient resolution and dating to document the impact of millennial-scale climate variability on vegetation and fire regimes during the last glacial period. Although Dansgaard-Oeschger (D-O) cycles all show a basically similar gross structure, they vary in the magn...
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/911ab6fb-aa77-4360-a4fb-3ae09269ff7e 2024-09-15T18:10:09+00:00 Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period Harrison, S. P. Sanchez Goñi, M. F. 2010-10 https://researchers.mq.edu.au/en/publications/911ab6fb-aa77-4360-a4fb-3ae09269ff7e https://doi.org/10.1016/j.quascirev.2010.07.016 http://www.scopus.com/inward/record.url?scp=77956514455&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Harrison , S P & Sanchez Goñi , M F 2010 , ' Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period ' , Quaternary Science Reviews , vol. 29 , no. 21-22 , pp. 2957-2980 . https://doi.org/10.1016/j.quascirev.2010.07.016 article 2010 ftmacquarieunicr https://doi.org/10.1016/j.quascirev.2010.07.016 2024-08-28T23:47:18Z Ninety-four sites worldwide have sufficient resolution and dating to document the impact of millennial-scale climate variability on vegetation and fire regimes during the last glacial period. Although Dansgaard-Oeschger (D-O) cycles all show a basically similar gross structure, they vary in the magnitude and the length of the warm and cool intervals. We illustrate the geographic patterns in the climate-induced changes in vegetation by comparing D-O 6, D-O 8 and D-O 19. There is a strong response to both D-O warming events and subsequent cooling, most marked in the northern extratropics. Pollen records from marine cores from the northern extratropics confirm that there is no lag between the change in climate and the vegetation response, within the limits of the dating resolution (50-100 years). However, the magnitude of the change in vegetation is regionally specific and is not a simple function of either the magnitude or the duration of the change in climate as registered in Greenland ice cores. Fire regimes also show an initial immediate response to climate changes, but during cooling intervals there is a slow recovery of biomass burning after the initial reduction, suggesting a secondary control through the recovery of vegetation productivity. In the extratropics, vegetation changes are largely determined by winter temperatures while in the tropics they are largely determined by changes in plant-available water. Tropical vegetation records show changes corresponding to Heinrich Stadials but the response to D-O warming events is less marked than in the northern extratropics. There are very few high-resolution records from the Southern Hemisphere extratropics, but these records also show both a vegetation and fire response to millennial-scale climate variability. It is not yet possible to determine unequivocally whether terrestrial records reflect the asynchroneity apparent in the ice-core records. Article in Journal/Newspaper Greenland Greenland ice cores ice core Macquarie University Research Portal Quaternary Science Reviews 29 21-22 2957 2980 |
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Macquarie University Research Portal |
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language |
English |
description |
Ninety-four sites worldwide have sufficient resolution and dating to document the impact of millennial-scale climate variability on vegetation and fire regimes during the last glacial period. Although Dansgaard-Oeschger (D-O) cycles all show a basically similar gross structure, they vary in the magnitude and the length of the warm and cool intervals. We illustrate the geographic patterns in the climate-induced changes in vegetation by comparing D-O 6, D-O 8 and D-O 19. There is a strong response to both D-O warming events and subsequent cooling, most marked in the northern extratropics. Pollen records from marine cores from the northern extratropics confirm that there is no lag between the change in climate and the vegetation response, within the limits of the dating resolution (50-100 years). However, the magnitude of the change in vegetation is regionally specific and is not a simple function of either the magnitude or the duration of the change in climate as registered in Greenland ice cores. Fire regimes also show an initial immediate response to climate changes, but during cooling intervals there is a slow recovery of biomass burning after the initial reduction, suggesting a secondary control through the recovery of vegetation productivity. In the extratropics, vegetation changes are largely determined by winter temperatures while in the tropics they are largely determined by changes in plant-available water. Tropical vegetation records show changes corresponding to Heinrich Stadials but the response to D-O warming events is less marked than in the northern extratropics. There are very few high-resolution records from the Southern Hemisphere extratropics, but these records also show both a vegetation and fire response to millennial-scale climate variability. It is not yet possible to determine unequivocally whether terrestrial records reflect the asynchroneity apparent in the ice-core records. |
format |
Article in Journal/Newspaper |
author |
Harrison, S. P. Sanchez Goñi, M. F. |
spellingShingle |
Harrison, S. P. Sanchez Goñi, M. F. Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period |
author_facet |
Harrison, S. P. Sanchez Goñi, M. F. |
author_sort |
Harrison, S. P. |
title |
Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period |
title_short |
Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period |
title_full |
Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period |
title_fullStr |
Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period |
title_full_unstemmed |
Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period |
title_sort |
global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period |
publishDate |
2010 |
url |
https://researchers.mq.edu.au/en/publications/911ab6fb-aa77-4360-a4fb-3ae09269ff7e https://doi.org/10.1016/j.quascirev.2010.07.016 http://www.scopus.com/inward/record.url?scp=77956514455&partnerID=8YFLogxK |
genre |
Greenland Greenland ice cores ice core |
genre_facet |
Greenland Greenland ice cores ice core |
op_source |
Harrison , S P & Sanchez Goñi , M F 2010 , ' Global patterns of vegetation response to millennial-scale variability and rapid climate change during the last glacial period ' , Quaternary Science Reviews , vol. 29 , no. 21-22 , pp. 2957-2980 . https://doi.org/10.1016/j.quascirev.2010.07.016 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2010.07.016 |
container_title |
Quaternary Science Reviews |
container_volume |
29 |
container_issue |
21-22 |
container_start_page |
2957 |
op_container_end_page |
2980 |
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1810447746832793600 |