Your browser has javascript turned off or blocked. This will lead to some parts of our website to not work properly or at all. Turn on javascript for best performance.

The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Default user image.

Anna Maria Jönsson

Professor

Default user image.

Quantifying the effects of land use and climate on Holocene vegetation in Europe

Author

  • Laurent Marquer
  • Marie-José Gaillard
  • Shinya Sugita
  • Anneli Poska
  • Anna-Kari Trondman
  • Florence Mazier
  • Anne Birgitte Nielsen
  • Ralph M. Fyfe
  • Anna Maria Jönsson
  • Benjamin Smith
  • Jed O. Kaplan
  • Teija Alenius
  • H. John B. Birks
  • Anne E. Bjune
  • Jörg Christiansen
  • John Dodson
  • Kevin J. Edwards
  • Thomas Giesecke
  • Ulrike Herzschuh
  • Mihkel Kangur
  • Tiiu Koff
  • Małgorzata Latałowa
  • Jutta Lechterbeck
  • Jörgen Olofsson
  • Heikki Seppä

Summary, in English

Early agriculture can be detected in palaeovegetation records, but quantification of the relative importance of climate and land use in influencing regional vegetation composition since the onset of agriculture is a topic that is rarely addressed. We present a novel approach that combines pollen-based REVEALS estimates of plant cover with climate, anthropogenic land-cover and dynamic vegetation modelling results. This is used to quantify the relative impacts of land use and climate on Holocene vegetation at a sub-continental scale, i.e. northern and western Europe north of the Alps. We use redundancy analysis and variation partitioning to quantify the percentage of variation in vegetation composition explained by the climate and land-use variables, and Monte Carlo permutation tests to assess the statistical significance of each variable. We further use a similarity index to combine pollen-based REVEALS estimates with climate-driven dynamic vegetation modelling results. The overall results indicate that climate is the major driver of vegetation when the Holocene is considered as a whole and at the sub-continental scale, although land use is important regionally. Four critical phases of land-use effects on vegetation are identified. The first phase (from 7000 to 6500 BP) corresponds to the early impacts on vegetation of farming and Neolithic forest clearance and to the dominance of climate as a driver of vegetation change. During the second phase (from 4500 to 4000 BP), land use becomes a major control of vegetation. Climate is still the principal driver, although its influence decreases gradually. The third phase (from 2000 to 1500 BP) is characterised by the continued role of climate on vegetation as a consequence of late-Holocene climate shifts and specific climate events that influence vegetation as well as land use. The last phase (from 500 to 350 BP) shows an acceleration of vegetation changes, in particular during the last century, caused by new farming practices and forestry in response to population growth and industrialization. This is a unique signature of anthropogenic impact within the Holocene but European vegetation remains climatically sensitive and thus may continue to respond to ongoing climate change.

Department/s

  • Dept of Physical Geography and Ecosystem Science
  • Quaternary Sciences
  • MERGE - ModElling the Regional and Global Earth system
  • BECC - Biodiversity and Ecosystem services in a Changing Climate

Publishing year

2017-09-01

Language

English

Pages

20-37

Publication/Series

Quaternary Science Reviews

Volume

171

Document type

Journal article

Publisher

Elsevier

Topic

  • Geology
  • Other Earth and Related Environmental Sciences

Keywords

  • Climate
  • Europe
  • Holocene
  • Human impact
  • Land use
  • LPJ-GUESS
  • Pollen
  • REVEALS
  • Vegetation composition

Status

Published

Project

  • PAGES’ LandCover6k Working Group

ISBN/ISSN/Other

  • ISSN: 0277-3791