Studies in the Vegetational History of Greenland, Palaeobotanical Investigations of some Holocene Lake and Bog deposits.
The content of pollen in holocene, organic sediments in some Greenland lakes and bogs has been analyzed. The results are presented in relative and absolute diagrams. Furthermore, radiocarbon datings and macrofossil determinations are included in the description of the vegetational history. For the o...
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Kommissionen for Videnskabelige Undersøgelser i Grønland
1973
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ftkbcopenhojs:oai:ojs.tidsskrift.dk:article/147748 2024-09-15T18:08:47+00:00 Studies in the Vegetational History of Greenland, Palaeobotanical Investigations of some Holocene Lake and Bog deposits. Fredskild, Bent 1973-01-01 application/pdf https://tidsskrift.dk/meddrgroenland/article/view/147748 eng eng Kommissionen for Videnskabelige Undersøgelser i Grønland https://tidsskrift.dk/meddrgroenland/article/view/147748/190810 https://tidsskrift.dk/meddrgroenland/article/view/147748 Copyright (c) 1973 Copyright for all papers published by Kommisionen for videnskagelige Undersøgelser i Grønland is vested in the Commission. Those who aske for permission to reproduce material from the Commission's publications are, however, informed that the author's permission must also be obtained if he is still alive. Meddelelser om Grønland; Vol. 198 No. 4 (1973): Meddelelser om Grønland; 270 pp. Meddelelser om Grønland; Årg. 198 Nr. 4 (1973): Meddelelser om Grønland; 270 pp. 2794-6827 0025-6676 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Fagfællebedømt artikel 1973 ftkbcopenhojs 2024-08-05T23:33:18Z The content of pollen in holocene, organic sediments in some Greenland lakes and bogs has been analyzed. The results are presented in relative and absolute diagrams. Furthermore, radiocarbon datings and macrofossil determinations are included in the description of the vegetational history. For the outer coast at Kap Farvel the first vegetation after the deglaciation around or shortly after 10,000 C" years B.P. was an open pioneer vegetation of widely distributed arctic plants. No southern species are proved. Snow-patches seem to have been frequent until ea. 7200 B.P., when Salix and Juniperus immigrated. A further amelioration is indicated around 5300 B.P. Betula glandulosa immigrates ea. 3800 B.P. The hypsithermal falls within 5300-2200 B.P. In the interior the sedimentation starts later. The vegetation was somewhat different due to the more continental climate, but the trend of the diagrams is parallel. Salix immigrates ea. 8000 B.P., Juniperus ea. 7000, Betula glandulosa between 4500 and 4000, and B.pubescens ea. 3600 B.P. The Norse settlement resulted in an opening of the scrubs and an increase in herbs, especially in the introduced strains of Rumex acetosella. The abandonment did not result in the extinction of the perennial "Norse plants". In the beginning the hydrophytes were common in the poor lakes at the outer coast, but oligotrophication soon made them very poor, and most species died out. At the head of Godthabsfjord, West Greenland, the vegetational development is parallel and presumably synchronous to that in the interior of South Greenland. In North Greenland the composition of the vegetation seems to have changed little in the past 5000 years, but in a period roughly between 4000-2100 B.P. and again between 1500 and 900 B.P. the climate seems to have been less arid. Exotic and long distance pollen is important in South Greenland sediments. Most common among the trees are Alnus, Picea and Pinus, but also herbs such as Ambrosia, Artemisia and Chenopodiaceae are frequent. Changes and differences in ... Article in Journal/Newspaper Greenland Kap Farvel North Greenland Tidsskrift.dk (The Royal Library, Denmark) |
institution |
Open Polar |
collection |
Tidsskrift.dk (The Royal Library, Denmark) |
op_collection_id |
ftkbcopenhojs |
language |
English |
description |
The content of pollen in holocene, organic sediments in some Greenland lakes and bogs has been analyzed. The results are presented in relative and absolute diagrams. Furthermore, radiocarbon datings and macrofossil determinations are included in the description of the vegetational history. For the outer coast at Kap Farvel the first vegetation after the deglaciation around or shortly after 10,000 C" years B.P. was an open pioneer vegetation of widely distributed arctic plants. No southern species are proved. Snow-patches seem to have been frequent until ea. 7200 B.P., when Salix and Juniperus immigrated. A further amelioration is indicated around 5300 B.P. Betula glandulosa immigrates ea. 3800 B.P. The hypsithermal falls within 5300-2200 B.P. In the interior the sedimentation starts later. The vegetation was somewhat different due to the more continental climate, but the trend of the diagrams is parallel. Salix immigrates ea. 8000 B.P., Juniperus ea. 7000, Betula glandulosa between 4500 and 4000, and B.pubescens ea. 3600 B.P. The Norse settlement resulted in an opening of the scrubs and an increase in herbs, especially in the introduced strains of Rumex acetosella. The abandonment did not result in the extinction of the perennial "Norse plants". In the beginning the hydrophytes were common in the poor lakes at the outer coast, but oligotrophication soon made them very poor, and most species died out. At the head of Godthabsfjord, West Greenland, the vegetational development is parallel and presumably synchronous to that in the interior of South Greenland. In North Greenland the composition of the vegetation seems to have changed little in the past 5000 years, but in a period roughly between 4000-2100 B.P. and again between 1500 and 900 B.P. the climate seems to have been less arid. Exotic and long distance pollen is important in South Greenland sediments. Most common among the trees are Alnus, Picea and Pinus, but also herbs such as Ambrosia, Artemisia and Chenopodiaceae are frequent. Changes and differences in ... |
format |
Article in Journal/Newspaper |
author |
Fredskild, Bent |
spellingShingle |
Fredskild, Bent Studies in the Vegetational History of Greenland, Palaeobotanical Investigations of some Holocene Lake and Bog deposits. |
author_facet |
Fredskild, Bent |
author_sort |
Fredskild, Bent |
title |
Studies in the Vegetational History of Greenland, Palaeobotanical Investigations of some Holocene Lake and Bog deposits. |
title_short |
Studies in the Vegetational History of Greenland, Palaeobotanical Investigations of some Holocene Lake and Bog deposits. |
title_full |
Studies in the Vegetational History of Greenland, Palaeobotanical Investigations of some Holocene Lake and Bog deposits. |
title_fullStr |
Studies in the Vegetational History of Greenland, Palaeobotanical Investigations of some Holocene Lake and Bog deposits. |
title_full_unstemmed |
Studies in the Vegetational History of Greenland, Palaeobotanical Investigations of some Holocene Lake and Bog deposits. |
title_sort |
studies in the vegetational history of greenland, palaeobotanical investigations of some holocene lake and bog deposits. |
publisher |
Kommissionen for Videnskabelige Undersøgelser i Grønland |
publishDate |
1973 |
url |
https://tidsskrift.dk/meddrgroenland/article/view/147748 |
genre |
Greenland Kap Farvel North Greenland |
genre_facet |
Greenland Kap Farvel North Greenland |
op_source |
Meddelelser om Grønland; Vol. 198 No. 4 (1973): Meddelelser om Grønland; 270 pp. Meddelelser om Grønland; Årg. 198 Nr. 4 (1973): Meddelelser om Grønland; 270 pp. 2794-6827 0025-6676 |
op_relation |
https://tidsskrift.dk/meddrgroenland/article/view/147748/190810 https://tidsskrift.dk/meddrgroenland/article/view/147748 |
op_rights |
Copyright (c) 1973 Copyright for all papers published by Kommisionen for videnskagelige Undersøgelser i Grønland is vested in the Commission. Those who aske for permission to reproduce material from the Commission's publications are, however, informed that the author's permission must also be obtained if he is still alive. |
_version_ |
1810446153393635328 |