The Point Bar Environment in the Mackenzie River Delta
Helicoidal flow and sediment sorting along the convex portion of shifting channels in the Mackenzie River Delta cause point bars to be composed of the coarsest material available to plant colonization. Sorting by aeolian action further reduces the fine fraction in point bar soils. Coarse-textured de...
Published in: | Canadian Journal of Earth Sciences |
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Language: | English |
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Canadian Science Publishing
1972
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Online Access: | http://dx.doi.org/10.1139/e72-125 http://www.nrcresearchpress.com/doi/pdf/10.1139/e72-125 |
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crcansciencepubl:10.1139/e72-125 2024-09-15T18:18:11+00:00 The Point Bar Environment in the Mackenzie River Delta Gill, Don 1972 http://dx.doi.org/10.1139/e72-125 http://www.nrcresearchpress.com/doi/pdf/10.1139/e72-125 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 9, issue 11, page 1382-1393 ISSN 0008-4077 1480-3313 journal-article 1972 crcansciencepubl https://doi.org/10.1139/e72-125 2024-08-01T04:10:02Z Helicoidal flow and sediment sorting along the convex portion of shifting channels in the Mackenzie River Delta cause point bars to be composed of the coarsest material available to plant colonization. Sorting by aeolian action further reduces the fine fraction in point bar soils. Coarse-textured deposits maintain a lower water content and a higher soil temperature than other deltaic surfaces, thus nearly every point bar is colonized by a discrete plant association. This ecosystem is dominated by balsam poplar (Populus balsamifera), and the distribution of well developed poplar stands is restricted to point bars. The successional ecology of this ecosystem is discussed in relation to the point bar environment. Article in Journal/Newspaper Mackenzie river Canadian Science Publishing Canadian Journal of Earth Sciences 9 11 1382 1393 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Helicoidal flow and sediment sorting along the convex portion of shifting channels in the Mackenzie River Delta cause point bars to be composed of the coarsest material available to plant colonization. Sorting by aeolian action further reduces the fine fraction in point bar soils. Coarse-textured deposits maintain a lower water content and a higher soil temperature than other deltaic surfaces, thus nearly every point bar is colonized by a discrete plant association. This ecosystem is dominated by balsam poplar (Populus balsamifera), and the distribution of well developed poplar stands is restricted to point bars. The successional ecology of this ecosystem is discussed in relation to the point bar environment. |
format |
Article in Journal/Newspaper |
author |
Gill, Don |
spellingShingle |
Gill, Don The Point Bar Environment in the Mackenzie River Delta |
author_facet |
Gill, Don |
author_sort |
Gill, Don |
title |
The Point Bar Environment in the Mackenzie River Delta |
title_short |
The Point Bar Environment in the Mackenzie River Delta |
title_full |
The Point Bar Environment in the Mackenzie River Delta |
title_fullStr |
The Point Bar Environment in the Mackenzie River Delta |
title_full_unstemmed |
The Point Bar Environment in the Mackenzie River Delta |
title_sort |
point bar environment in the mackenzie river delta |
publisher |
Canadian Science Publishing |
publishDate |
1972 |
url |
http://dx.doi.org/10.1139/e72-125 http://www.nrcresearchpress.com/doi/pdf/10.1139/e72-125 |
genre |
Mackenzie river |
genre_facet |
Mackenzie river |
op_source |
Canadian Journal of Earth Sciences volume 9, issue 11, page 1382-1393 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e72-125 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
9 |
container_issue |
11 |
container_start_page |
1382 |
op_container_end_page |
1393 |
_version_ |
1810456309460369408 |