The impact of tourism and reindeer herding on forest vegetation at Saariselkä, Finnish Lapland

A pollen analytical study of a high-resolution peat profile

Dados Bibliográficos

ID12265104
AutoresSatu Räsänen (Department of Geography, University of Oulu, P.O. Box 3000, FIN-90014 University of Oulu, Finland, autor correspondente), Cynthia A Froyd (0000-0001-5291-9156, University of Oxford), Cynthia Froyd (Oxford University Centre for the Environment, South Parks Road, Oxford OX1 3QY, UK), Tomasz Goslar (0000-0002-1346-3122, Faculty of Physics, Adam Mickiewicz University, ul. Umultowska 85, PL-61-614 Poznan, Poland, Poznan Radiocarbon Laboratory, ul. Rubiez 46, PL-61-612 Poznan, Poland)
Ano2007
Volume17
Fascículo4
Páginas447-456
Data de publicação2007-05-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoThe Holocene (JOURNAL)
Identificadores do periódicoISSN: 0959-6836 • E-ISSN: 1477-0911
EditoraSAGE Publishing (PUBLISHER • US)
DOI10.1177/0959683607077016
OpenAlexW1991001831
IdiomaEN
Citações recebidas13
Referências citadas16

A high-resolution peat profile from the vicinity of Saariselkä (68°25.24'N, 27°25.19'E), a large tourist centre in northern Finnish Lapland, was sampled continuously at near annual resolution to a depth of 22 cm in order to interpret the changes in pollen assemblages and vegetation resulting from human interference and reindeer herding. Fifteen AMS dates were wiggle-matched with the atmospheric 14 C calibration curve. The resulting age—depth model allows the calculation of pollen accumulation rates (PAR grains/cm 2 per yr), which, in turn, enables the fine-scale human impact to be interpreted on much better grounds than would be possible with the classical pollen percentages approach. Results indicate that increasing tourist numbers since the building of the Saariselkä resort in 1950 are not seen in the pollen diagrams. Only a slight, although clear, increase in the pollen taxa of disturbed sites (mainly Gramineae with some herb pollen taxa) can be detected from the PAR diagram after the 1950s, along with a decrease of Pinus pollen following the clearance of the ski slopes in the 1970s. Principal components analysis (PCA) of fossil pollen spectra and modern pollen analogues obtained from both natural and human-disturbed sites confirms that human interference that has affected the vegetation around Saariselkä is not visible in the pollen record to the degree that might have been expected. This is interpreted as resulting from the considerably different nature of human impact at Saariselkä, where the infrastructure is fully developed and weed species are efficiently removed. The remarkable growth of reindeer population in the area during the1980s, however, can be observed in the peat profile through an increase in the number of coprophilous fungal spores ( Podospora, Sporormiella). This increase in fungal spores occurs simultaneously with a decrease in Betula pollen, which is interpreted to be a consequence of reindeer foraging the young Betula trees and seedlings

Biology · Geography · Mire · Palynology · Peat · Physical geography · Pollen · Taxon · Vegetation (pathology · Geology and Paleoclimatology Research · Lichen and fungal ecology · Peatlands and Wetlands Ecology · Ecology · Geology