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Pollen-based quantitative reconstructions of Holocene regional vegetation cover (plant-functional types and land-cover types) in Europe suitable for climate modelling

Trondman, A. -K.; Gaillard, M. -J.; Mazier, F.; Sugita, S.; Fyfe, R.; Nielsen, Anne Birgitte LU ; Twiddle, C.; Barratt, P.; Birks, H. J. B. and Bjune, A. E., et al. (2015) In Global Change Biology 21(2). p.676-697
Abstract
We present quantitative reconstructions of regional vegetation cover in north-western Europe, western Europe north of the Alps, and eastern Europe for five time windows in the Holocene [around 6k, 3k, 0.5k, 0.2k, and 0.05k calendar years before present (bp)] at a 1 degrees x1 degrees spatial scale with the objective of producing vegetation descriptions suitable for climate modelling. The REVEALS model was applied on 636 pollen records from lakes and bogs to reconstruct the past cover of 25 plant taxa grouped into 10 plant-functional types and three land-cover types [evergreen trees, summer-green (deciduous) trees, and open land]. The model corrects for some of the biases in pollen percentages by using pollen productivity estimates and fall... (More)
We present quantitative reconstructions of regional vegetation cover in north-western Europe, western Europe north of the Alps, and eastern Europe for five time windows in the Holocene [around 6k, 3k, 0.5k, 0.2k, and 0.05k calendar years before present (bp)] at a 1 degrees x1 degrees spatial scale with the objective of producing vegetation descriptions suitable for climate modelling. The REVEALS model was applied on 636 pollen records from lakes and bogs to reconstruct the past cover of 25 plant taxa grouped into 10 plant-functional types and three land-cover types [evergreen trees, summer-green (deciduous) trees, and open land]. The model corrects for some of the biases in pollen percentages by using pollen productivity estimates and fall speeds of pollen, and by applying simple but robust models of pollen dispersal and deposition. The emerging patterns of tree migration and deforestation between 6k bp and modern time in the REVEALS estimates agree with our general understanding of the vegetation history of Europe based on pollen percentages. However, the degree of anthropogenic deforestation (i.e. cover of cultivated and grazing land) at 3k, 0.5k, and 0.2k bp is significantly higher than deduced from pollen percentages. This is also the case at 6k in some parts of Europe, in particular Britain and Ireland. Furthermore, the relationship between summer-green and evergreen trees, and between individual tree taxa, differs significantly when expressed as pollen percentages or as REVEALS estimates of tree cover. For instance, when Pinus is dominant over Picea as pollen percentages, Picea is dominant over Pinus as REVEALS estimates. These differences play a major role in the reconstruction of European landscapes and for the study of land cover-climate interactions, biodiversity and human resources. (Less)
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published
subject
keywords
Europe, Holocene, plant-functional types, pollen data, quantitative past, land cover, REVEALS model
in
Global Change Biology
volume
21
issue
2
pages
676 - 697
publisher
Wiley-Blackwell
external identifiers
  • wos:000348652400016
  • scopus:84923209714
ISSN
1354-1013
DOI
10.1111/gcb.12737
language
English
LU publication?
yes
id
cb0ad35d-d4a9-41d1-a73d-cc5dbd5d1c04 (old id 5187110)
date added to LUP
2015-03-30 14:12:54
date last changed
2017-11-12 03:04:31
@article{cb0ad35d-d4a9-41d1-a73d-cc5dbd5d1c04,
  abstract     = {We present quantitative reconstructions of regional vegetation cover in north-western Europe, western Europe north of the Alps, and eastern Europe for five time windows in the Holocene [around 6k, 3k, 0.5k, 0.2k, and 0.05k calendar years before present (bp)] at a 1 degrees x1 degrees spatial scale with the objective of producing vegetation descriptions suitable for climate modelling. The REVEALS model was applied on 636 pollen records from lakes and bogs to reconstruct the past cover of 25 plant taxa grouped into 10 plant-functional types and three land-cover types [evergreen trees, summer-green (deciduous) trees, and open land]. The model corrects for some of the biases in pollen percentages by using pollen productivity estimates and fall speeds of pollen, and by applying simple but robust models of pollen dispersal and deposition. The emerging patterns of tree migration and deforestation between 6k bp and modern time in the REVEALS estimates agree with our general understanding of the vegetation history of Europe based on pollen percentages. However, the degree of anthropogenic deforestation (i.e. cover of cultivated and grazing land) at 3k, 0.5k, and 0.2k bp is significantly higher than deduced from pollen percentages. This is also the case at 6k in some parts of Europe, in particular Britain and Ireland. Furthermore, the relationship between summer-green and evergreen trees, and between individual tree taxa, differs significantly when expressed as pollen percentages or as REVEALS estimates of tree cover. For instance, when Pinus is dominant over Picea as pollen percentages, Picea is dominant over Pinus as REVEALS estimates. These differences play a major role in the reconstruction of European landscapes and for the study of land cover-climate interactions, biodiversity and human resources.},
  author       = {Trondman, A. -K. and Gaillard, M. -J. and Mazier, F. and Sugita, S. and Fyfe, R. and Nielsen, Anne Birgitte and Twiddle, C. and Barratt, P. and Birks, H. J. B. and Bjune, A. E. and Bjorkman, L. and Broström, Anna and Caseldine, C. and David, R. and Dodson, J. and Doerfler, W. and Fischer, E. and van Geel, B. and Giesecke, T. and Hultberg, T. and Kalnina, L. and Kangur, M. and van der Knaap, P. and Koff, T. and Kunes, P. and Lageras, P. and Latalowa, M. and Lechterbeck, J. and Leroyer, C. and Leydet, M. and Lindbladh, M. and Marquer, Laurent and Mitchell, F. J. G. and Odgaard, B. V. and Peglar, S. M. and Persson, Thomas and Poska, Anneli and Roesch, M. and Seppa, H. and Veski, S. and Wick, L.},
  issn         = {1354-1013},
  keyword      = {Europe,Holocene,plant-functional types,pollen data,quantitative past,land cover,REVEALS model},
  language     = {eng},
  number       = {2},
  pages        = {676--697},
  publisher    = {Wiley-Blackwell},
  series       = {Global Change Biology},
  title        = {Pollen-based quantitative reconstructions of Holocene regional vegetation cover (plant-functional types and land-cover types) in Europe suitable for climate modelling},
  url          = {http://dx.doi.org/10.1111/gcb.12737},
  volume       = {21},
  year         = {2015},
}