Quantitative reconstruction of past Danish landscapes: The first results

Bent Vad Odgaard; Anne Birgitte Nielsen

Quantitative reconstruction of past Danish landscapes: The first results

Bent Vad Odgaard
, Anne Birgitte Nielsen

Institut for Geoscience

Publikation: Konferencebidrag › Poster › Forskning

Abstract

We present a first attempt at pollen based quantitative reconstruction of land cover

around 9 Danish lake sites for the past 2500 years, based on models of pollen

dispersal and -deposition (Prentice, 1985; Sugita, 1993, 1994), and pollen

productivity estimates produced from a historical calibration dataset of AD 1800

pollen assemblages and historical plant abundance (Nielsen, 2004; Nielsen &

Odgaard, 2005).

A new model, REVEALS (Sugita, in press), is used to reconstruct past regional

abundance of the plant groups trees, grasses, cereals and heather, in 500 year

intervals. These estimates are then used in the Landscape Reconstruction

Algorithm, LRA, (Sugita & Walker, 2000; Sugita, in press) to separate background

and local pollen signals at small sites, thus providing reconstructions of local

vegetation around the sites.

Originalsprog	Engelsk
Publikationsdato	2008
Status	Udgivet - 2008
Begivenhed	3rd LaSys Workshop: Land system science - Handling complex series of natural and socio-economic processes - Tune, Roskilde, Danmark Varighed: 25 okt. 2007 → 26 okt. 2007

Konference

Konference	3rd LaSys Workshop: Land system science - Handling complex series of natural and socio-economic processes
Land/Område	Danmark
By	Tune, Roskilde
Periode	25/10/2007 → 26/10/2007

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Citationsformater

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title = "Quantitative reconstruction of past Danish landscapes: The first results",

abstract = "We present a first attempt at pollen based quantitative reconstruction of land coveraround 9 Danish lake sites for the past 2500 years, based on models of pollendispersal and -deposition (Prentice, 1985; Sugita, 1993, 1994), and pollenproductivity estimates produced from a historical calibration dataset of AD 1800pollen assemblages and historical plant abundance (Nielsen, 2004; Nielsen \&Odgaard, 2005).A new model, REVEALS (Sugita, in press), is used to reconstruct past regionalabundance of the plant groups trees, grasses, cereals and heather, in 500 yearintervals. These estimates are then used in the Landscape ReconstructionAlgorithm, LRA, (Sugita \& Walker, 2000; Sugita, in press) to separate backgroundand local pollen signals at small sites, thus providing reconstructions of localvegetation around the sites.",

author = "Odgaard, \{Bent Vad\} and Nielsen, \{Anne Birgitte\}",

year = "2008",

language = "English",

note = "3rd LaSys Workshop: Land system science - Handling complex series of natural and socio-economic processes ; Conference date: 25-10-2007 Through 26-10-2007",

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TY - CONF

T1 - Quantitative reconstruction of past Danish landscapes: The first results

AU - Odgaard, Bent Vad

AU - Nielsen, Anne Birgitte

PY - 2008

Y1 - 2008

N2 - We present a first attempt at pollen based quantitative reconstruction of land coveraround 9 Danish lake sites for the past 2500 years, based on models of pollendispersal and -deposition (Prentice, 1985; Sugita, 1993, 1994), and pollenproductivity estimates produced from a historical calibration dataset of AD 1800pollen assemblages and historical plant abundance (Nielsen, 2004; Nielsen &Odgaard, 2005).A new model, REVEALS (Sugita, in press), is used to reconstruct past regionalabundance of the plant groups trees, grasses, cereals and heather, in 500 yearintervals. These estimates are then used in the Landscape ReconstructionAlgorithm, LRA, (Sugita & Walker, 2000; Sugita, in press) to separate backgroundand local pollen signals at small sites, thus providing reconstructions of localvegetation around the sites.

AB - We present a first attempt at pollen based quantitative reconstruction of land coveraround 9 Danish lake sites for the past 2500 years, based on models of pollendispersal and -deposition (Prentice, 1985; Sugita, 1993, 1994), and pollenproductivity estimates produced from a historical calibration dataset of AD 1800pollen assemblages and historical plant abundance (Nielsen, 2004; Nielsen &Odgaard, 2005).A new model, REVEALS (Sugita, in press), is used to reconstruct past regionalabundance of the plant groups trees, grasses, cereals and heather, in 500 yearintervals. These estimates are then used in the Landscape ReconstructionAlgorithm, LRA, (Sugita & Walker, 2000; Sugita, in press) to separate backgroundand local pollen signals at small sites, thus providing reconstructions of localvegetation around the sites.

M3 - Poster

T2 - 3rd LaSys Workshop: Land system science - Handling complex series of natural and socio-economic processes

Y2 - 25 October 2007 through 26 October 2007

ER -

Quantitative reconstruction of past Danish landscapes: The first results

Abstract

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