Summit peats (‘peat cakes’) on the fells of Finnish Lapland: continental fragments of blanket mires?
Peat deposits of area up to 50 m 2 and thickness of 10-50 cm on fell summits at 370-622 m a.s.1. in northern Finland have been mapped, analysed and dated. These summit 'peat cakes' are most frequent in northwestern Inari Lapland, in a relatively continental climate and close to the Arctic...
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Online Access: | http://dx.doi.org/10.1191/095968300670047420 http://journals.sagepub.com/doi/pdf/10.1191/095968300670047420 |
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crsagepubl:10.1191/095968300670047420 2024-04-07T07:50:27+00:00 Summit peats (‘peat cakes’) on the fells of Finnish Lapland: continental fragments of blanket mires? Luoto, Miska Seppälä, Matti 2000 http://dx.doi.org/10.1191/095968300670047420 http://journals.sagepub.com/doi/pdf/10.1191/095968300670047420 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 10, issue 2, page 229-241 ISSN 0959-6836 1477-0911 Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change journal-article 2000 crsagepubl https://doi.org/10.1191/095968300670047420 2024-03-08T03:21:45Z Peat deposits of area up to 50 m 2 and thickness of 10-50 cm on fell summits at 370-622 m a.s.1. in northern Finland have been mapped, analysed and dated. These summit 'peat cakes' are most frequent in northwestern Inari Lapland, in a relatively continental climate and close to the Arctic Ocean. It seems that the most important local factor for their development are irregularities in microtopography, which collect drift snow and shelter plants from destructive winds. Most sites are dominated by Empetrum nigrum ssp. hermaphroditum.Accumulation of peat started after the Atlantic period c. 4000 14 C years BP, when the climate became morehumid. The mean annual growth of seven investigated deposits ranged from 0.1 1 to 0.44 mm yr-'. Plant macro remains at Kuovdaoaivi provide evidence of gradual vegetation development from an Empetrum-dominated community to a more diverse one: macro-remain concentration and the number of species rise gradually to the top of the deposit. At present, summit peats are being eroded by deflation, enhanced by needle ice and reindeer overgrazing. It seems that these peat deposits represent embryonic blanket mires at the continental limit of high-latitude blanket mire distribution. Article in Journal/Newspaper Arctic Arctic Ocean Empetrum nigrum Inari Northern Finland Lapland SAGE Publications Arctic Arctic Ocean Inari ENVELOPE(27.029,27.029,68.906,68.906) The Holocene 10 2 229 241 |
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Open Polar |
collection |
SAGE Publications |
op_collection_id |
crsagepubl |
language |
English |
topic |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
spellingShingle |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change Luoto, Miska Seppälä, Matti Summit peats (‘peat cakes’) on the fells of Finnish Lapland: continental fragments of blanket mires? |
topic_facet |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
description |
Peat deposits of area up to 50 m 2 and thickness of 10-50 cm on fell summits at 370-622 m a.s.1. in northern Finland have been mapped, analysed and dated. These summit 'peat cakes' are most frequent in northwestern Inari Lapland, in a relatively continental climate and close to the Arctic Ocean. It seems that the most important local factor for their development are irregularities in microtopography, which collect drift snow and shelter plants from destructive winds. Most sites are dominated by Empetrum nigrum ssp. hermaphroditum.Accumulation of peat started after the Atlantic period c. 4000 14 C years BP, when the climate became morehumid. The mean annual growth of seven investigated deposits ranged from 0.1 1 to 0.44 mm yr-'. Plant macro remains at Kuovdaoaivi provide evidence of gradual vegetation development from an Empetrum-dominated community to a more diverse one: macro-remain concentration and the number of species rise gradually to the top of the deposit. At present, summit peats are being eroded by deflation, enhanced by needle ice and reindeer overgrazing. It seems that these peat deposits represent embryonic blanket mires at the continental limit of high-latitude blanket mire distribution. |
format |
Article in Journal/Newspaper |
author |
Luoto, Miska Seppälä, Matti |
author_facet |
Luoto, Miska Seppälä, Matti |
author_sort |
Luoto, Miska |
title |
Summit peats (‘peat cakes’) on the fells of Finnish Lapland: continental fragments of blanket mires? |
title_short |
Summit peats (‘peat cakes’) on the fells of Finnish Lapland: continental fragments of blanket mires? |
title_full |
Summit peats (‘peat cakes’) on the fells of Finnish Lapland: continental fragments of blanket mires? |
title_fullStr |
Summit peats (‘peat cakes’) on the fells of Finnish Lapland: continental fragments of blanket mires? |
title_full_unstemmed |
Summit peats (‘peat cakes’) on the fells of Finnish Lapland: continental fragments of blanket mires? |
title_sort |
summit peats (‘peat cakes’) on the fells of finnish lapland: continental fragments of blanket mires? |
publisher |
SAGE Publications |
publishDate |
2000 |
url |
http://dx.doi.org/10.1191/095968300670047420 http://journals.sagepub.com/doi/pdf/10.1191/095968300670047420 |
long_lat |
ENVELOPE(27.029,27.029,68.906,68.906) |
geographic |
Arctic Arctic Ocean Inari |
geographic_facet |
Arctic Arctic Ocean Inari |
genre |
Arctic Arctic Ocean Empetrum nigrum Inari Northern Finland Lapland |
genre_facet |
Arctic Arctic Ocean Empetrum nigrum Inari Northern Finland Lapland |
op_source |
The Holocene volume 10, issue 2, page 229-241 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1191/095968300670047420 |
container_title |
The Holocene |
container_volume |
10 |
container_issue |
2 |
container_start_page |
229 |
op_container_end_page |
241 |
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1795665153440612352 |