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Holocene land-cover reconstructions for studies on land cover-climate feedbacks

Gaillard, Marie José and Sugita, Shinya and Mazier, Florence and Trondman, A-K and Broström, Anna and Hickler, Thomas and Kaplan, Jed O. and Kjellström, Erik and Kokfelt, Ulla and Kunes, Petr and Lemmen, Carsten and Miller, Paul A. and Olofsson, Jörgen and Poska, Anneli and Rundgren, Mats and Smith, Benjamin A. and Strandberg, Gustav and Fyfe, Ralph M. and Nielsen, Anne Birgitte and Alenius, Teija and Balakauskas, L and Barnekow, Lena and Birks, H. John B and Bjune, Anne Elisabeth and Björkman, Leif and Giesecke, Thomas and Hjelle, Kari Loe and Kalnina, Laimdota and Kangur, Mihkel and van der Knaap, Willem Oscar and Koff, Tiiu and Lagerås, Per and Latałowa, Małgorzata and Leydet, Michelle and Lechterbeck, Jutta and Lindbladh, Matts and Odgaard, Bent Vad and Peglar, Sylvia M. and Segerström, Ulf and von Stedingk, Henrik and Seppä, Heikki (2010). Holocene land-cover reconstructions for studies on land cover-climate feedbacks. Climate of the past. 6:4, 483-499
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Official URL: http://www.clim-past.net/6/483/2010/cp-6-483-2010....

Abstract

The major objectives of this paper are: (1) to review the pros and cons of the scenarios of past anthropogenic land cover change (ALCC) developed during the last ten years, (2) to discuss issues related to pollen-based reconstruction of the past land-cover and introduce a new method, REVEALS (Regional Estimates of VEgetation Abundance from Large Sites), to infer long-term records of past landcover from pollen data, (3) to present a new project (LANDCLIM:LAND cover – CLIMate interactions in NW Europe during the Holocene) currently underway, and show preliminary results of REVEALS reconstructions of the regional land-cover in the Czech Republic for five selected time windows of the Holocene, and (4) to discuss the implications and future directions in climate and vegetation/land-cover modeling, and in the assessment of the effects of human-induced changes in land-cover on the regional climate through altered feedbacks. The existing ALCC scenarios show large discrepancies between them, and few cover time periods older than AD 800. When these scenarios are used to assess the impact of human land-use on climate, contrasting results are obtained. It emphasizes the need for methods uch as the REVEALS model-based land-cover reconstructions. They might help to fine-tune descriptions of past landcover and lead to a better understanding of how long-term changes in ALCC might have influenced climate. The REVEALS model is demonstrated to provide better estimates of the regional vegetation/land-cover changes than the traditional use of pollen percentages. This will achieve a robust assessment of land cover at regional- to continental-spatial scale throughout the Holocene. We present maps of REVEALS estimates for the percentage cover of 10 plant functional types (PFTs) at 200 BP and 6000 BP, and of the two open-land PFTs “grassland” and “agricultural land” at five time-windows from 6000 BP to recent time. The LANDCLIM results are expected to provide crucial data to reassess ALCC estimates for a better understanding of the land suface-atmosphere interactions.

Authors/Creators:Gaillard, Marie José and Sugita, Shinya and Mazier, Florence and Trondman, A-K and Broström, Anna and Hickler, Thomas and Kaplan, Jed O. and Kjellström, Erik and Kokfelt, Ulla and Kunes, Petr and Lemmen, Carsten and Miller, Paul A. and Olofsson, Jörgen and Poska, Anneli and Rundgren, Mats and Smith, Benjamin A. and Strandberg, Gustav and Fyfe, Ralph M. and Nielsen, Anne Birgitte and Alenius, Teija and Balakauskas, L and Barnekow, Lena and Birks, H. John B and Bjune, Anne Elisabeth and Björkman, Leif and Giesecke, Thomas and Hjelle, Kari Loe and Kalnina, Laimdota and Kangur, Mihkel and van der Knaap, Willem Oscar and Koff, Tiiu and Lagerås, Per and Latałowa, Małgorzata and Leydet, Michelle and Lechterbeck, Jutta and Lindbladh, Matts and Odgaard, Bent Vad and Peglar, Sylvia M. and Segerström, Ulf and von Stedingk, Henrik and Seppä, Heikki
Title:Holocene land-cover reconstructions for studies on land cover-climate feedbacks
Series/Journal:Climate of the past (1814-9324)
Year of publishing :26 July 2010
Volume:6
Number:4
Page range:483-499
Publisher:Copernicus Publications
ISSN:1814-9324
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:Obsolete subject words > NATURAL SCIENCES > Earth sciences > Atmosphere and hydrosphere sciences > Climatology
Obsolete subject words > NATURAL SCIENCES > Earth sciences
Keywords:Holocene, land cover, land use change, climate
URN:NBN:urn:nbn:se:slu:epsilon-2-543
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-2-543
ID Code:5485
Department:(S) > Southern Swedish Forest Research Centre
Deposited By: Katarina Evengård
Deposited On:24 Feb 2011 00:00
Metadata Last Modified:02 Dec 2014 10:40

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