Holocene tree-line dynamics and inferred climatic changes in the Abisko area, northern Sweden, based on macrofossil and pollen records
Lake-sediment records of pollen and macroscopic plant remains of terrestrial origin provide evidence of long-term changes in forest composition close to the altitudinal tree-line in the Abisko area, northernmost Sweden. A dominance of mountain birch ( Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Ny...
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Language: | English |
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Online Access: | http://dx.doi.org/10.1191/095968399676322637 http://journals.sagepub.com/doi/pdf/10.1191/095968399676322637 |
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crsagepubl:10.1191/095968399676322637 2023-05-15T12:59:25+02:00 Holocene tree-line dynamics and inferred climatic changes in the Abisko area, northern Sweden, based on macrofossil and pollen records Barnekow, Lena 1999 http://dx.doi.org/10.1191/095968399676322637 http://journals.sagepub.com/doi/pdf/10.1191/095968399676322637 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 9, issue 3, page 253-265 ISSN 0959-6836 1477-0911 Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change journal-article 1999 crsagepubl https://doi.org/10.1191/095968399676322637 2022-07-03T16:05:55Z Lake-sediment records of pollen and macroscopic plant remains of terrestrial origin provide evidence of long-term changes in forest composition close to the altitudinal tree-line in the Abisko area, northernmost Sweden. A dominance of mountain birch ( Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) with a field layer of ferns, grasses and sedges suggests that an oceanic climate with relatively high precipitation existed during the early Holocene. Macrofossils of mountain birch were found 300–400 m above the present tree-line which corresponds to a 1.5–2°C higher summer temperature than at present. Scots Pine ( Pinus sylvestris) was present to some extent at altitudes above its present limit during the early Holocene. A pronounced expansion of pine took place above its present limit around 6300 cal. BP (5500 BP). This is interpreted as a result of successively drier and more continental climatic conditions. A decreased abundance of pine from c. 5200 cal. BP (4700 BP), followed by a gradual retraction of the upper limit of pine during the later part of the Holocene, can be attributed mainly to long-term changes in solar radiation. A decline in the upper limit of pine of c. 175 m since 4500 cal. BP (4000 BP) is believed to represent a decrease in growing-season temperature of c. 1.5°C. Article in Journal/Newspaper Abisko Northern Sweden SAGE Publications (via Crossref) Abisko ENVELOPE(18.829,18.829,68.349,68.349) The Holocene 9 3 253 265 |
institution |
Open Polar |
collection |
SAGE Publications (via Crossref) |
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 Barnekow, Lena Holocene tree-line dynamics and inferred climatic changes in the Abisko area, northern Sweden, based on macrofossil and pollen records |
topic_facet |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
description |
Lake-sediment records of pollen and macroscopic plant remains of terrestrial origin provide evidence of long-term changes in forest composition close to the altitudinal tree-line in the Abisko area, northernmost Sweden. A dominance of mountain birch ( Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) with a field layer of ferns, grasses and sedges suggests that an oceanic climate with relatively high precipitation existed during the early Holocene. Macrofossils of mountain birch were found 300–400 m above the present tree-line which corresponds to a 1.5–2°C higher summer temperature than at present. Scots Pine ( Pinus sylvestris) was present to some extent at altitudes above its present limit during the early Holocene. A pronounced expansion of pine took place above its present limit around 6300 cal. BP (5500 BP). This is interpreted as a result of successively drier and more continental climatic conditions. A decreased abundance of pine from c. 5200 cal. BP (4700 BP), followed by a gradual retraction of the upper limit of pine during the later part of the Holocene, can be attributed mainly to long-term changes in solar radiation. A decline in the upper limit of pine of c. 175 m since 4500 cal. BP (4000 BP) is believed to represent a decrease in growing-season temperature of c. 1.5°C. |
format |
Article in Journal/Newspaper |
author |
Barnekow, Lena |
author_facet |
Barnekow, Lena |
author_sort |
Barnekow, Lena |
title |
Holocene tree-line dynamics and inferred climatic changes in the Abisko area, northern Sweden, based on macrofossil and pollen records |
title_short |
Holocene tree-line dynamics and inferred climatic changes in the Abisko area, northern Sweden, based on macrofossil and pollen records |
title_full |
Holocene tree-line dynamics and inferred climatic changes in the Abisko area, northern Sweden, based on macrofossil and pollen records |
title_fullStr |
Holocene tree-line dynamics and inferred climatic changes in the Abisko area, northern Sweden, based on macrofossil and pollen records |
title_full_unstemmed |
Holocene tree-line dynamics and inferred climatic changes in the Abisko area, northern Sweden, based on macrofossil and pollen records |
title_sort |
holocene tree-line dynamics and inferred climatic changes in the abisko area, northern sweden, based on macrofossil and pollen records |
publisher |
SAGE Publications |
publishDate |
1999 |
url |
http://dx.doi.org/10.1191/095968399676322637 http://journals.sagepub.com/doi/pdf/10.1191/095968399676322637 |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) |
geographic |
Abisko |
geographic_facet |
Abisko |
genre |
Abisko Northern Sweden |
genre_facet |
Abisko Northern Sweden |
op_source |
The Holocene volume 9, issue 3, page 253-265 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1191/095968399676322637 |
container_title |
The Holocene |
container_volume |
9 |
container_issue |
3 |
container_start_page |
253 |
op_container_end_page |
265 |
_version_ |
1766009369018761216 |