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Modelling the vegetation response to the 8.2 ka bp cooling event in Europe and Northern Africa

Li, Huan ; Renssen, Hans ; Roche, Didier M. and Miller, Paul A. LU (2019) In Journal of Quaternary Science 34(8). p.650-661
Abstract

The 8.2 ka bp cooling event is assumed to be the most clearly marked abrupt climate event in the Holocene at northern mid- to high latitudes. In this study, we simulate the vegetation responses to the 8.2 ka bp climate change event over Europe and Northern Africa. Our results show that all dominant plant functional types (PFTs) over Europe and North Africa respond to these climate changes, but the magnitude, timing and impact factor of their responses are different. Compared with pollen-based vegetation reconstructions, our simulation generally captures the main features of vegetation responses to the 8.2 ka bp event. Interestingly, in Western Europe, the simulated vegetation after perturbation is different from its initial state, which... (More)

The 8.2 ka bp cooling event is assumed to be the most clearly marked abrupt climate event in the Holocene at northern mid- to high latitudes. In this study, we simulate the vegetation responses to the 8.2 ka bp climate change event over Europe and Northern Africa. Our results show that all dominant plant functional types (PFTs) over Europe and North Africa respond to these climate changes, but the magnitude, timing and impact factor of their responses are different. Compared with pollen-based vegetation reconstructions, our simulation generally captures the main features of vegetation responses to the 8.2 ka bp event. Interestingly, in Western Europe, the simulated vegetation after perturbation is different from its initial state, which is consistent with two high-resolution pollen records. This different vegetation composition indicates the long-lasting impact of abrupt climate change on vegetation through eco-physiological and ecosystem demographic processes, such as plant competition. Moreover, our simulations suggest a latitudinal gradient in the magnitude of the event, with more pronounced vegetation responses to the severe cooling in the north and weaker responses to less severe cooling in the south. This effect is not seen in pollen records.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
8.2 ka bp cooling event, long-lasting effects of abrupt climate change, LPJ-GUESS, plant functional types (PFTs), pollen reconstructions, vegetation simulations comparisons
in
Journal of Quaternary Science
volume
34
issue
8
pages
650 - 661
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85074765678
ISSN
0267-8179
DOI
10.1002/jqs.3157
language
English
LU publication?
yes
id
321cd26b-750f-45f8-a35b-0897e5eeb81c
date added to LUP
2019-12-10 09:46:20
date last changed
2022-04-18 19:28:13
@article{321cd26b-750f-45f8-a35b-0897e5eeb81c,
  abstract     = {{<p>The 8.2 ka bp cooling event is assumed to be the most clearly marked abrupt climate event in the Holocene at northern mid- to high latitudes. In this study, we simulate the vegetation responses to the 8.2 ka bp climate change event over Europe and Northern Africa. Our results show that all dominant plant functional types (PFTs) over Europe and North Africa respond to these climate changes, but the magnitude, timing and impact factor of their responses are different. Compared with pollen-based vegetation reconstructions, our simulation generally captures the main features of vegetation responses to the 8.2 ka bp event. Interestingly, in Western Europe, the simulated vegetation after perturbation is different from its initial state, which is consistent with two high-resolution pollen records. This different vegetation composition indicates the long-lasting impact of abrupt climate change on vegetation through eco-physiological and ecosystem demographic processes, such as plant competition. Moreover, our simulations suggest a latitudinal gradient in the magnitude of the event, with more pronounced vegetation responses to the severe cooling in the north and weaker responses to less severe cooling in the south. This effect is not seen in pollen records.</p>}},
  author       = {{Li, Huan and Renssen, Hans and Roche, Didier M. and Miller, Paul A.}},
  issn         = {{0267-8179}},
  keywords     = {{8.2 ka bp cooling event; long-lasting effects of abrupt climate change; LPJ-GUESS; plant functional types (PFTs); pollen reconstructions; vegetation simulations comparisons}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{8}},
  pages        = {{650--661}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Journal of Quaternary Science}},
  title        = {{Modelling the vegetation response to the 8.2 ka bp cooling event in Europe and Northern Africa}},
  url          = {{http://dx.doi.org/10.1002/jqs.3157}},
  doi          = {{10.1002/jqs.3157}},
  volume       = {{34}},
  year         = {{2019}},
}