The allocation of inorganic nitrogen (15 NH4+) to soil, microbial and plant biomass in an Arctic salt marsh.
Masters Thesis completed in 2004 by K.M. Buckeridge at the University of Toronto. Supervised by Dr. R.L. Jefferies. This study has demonstrated, through the shared distribution of a single resource (15 NH4+), that plants and soil microbes compete for inorganic N in a N-limited system. At La Pérouse...
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Ottawa : National Library of Canada = Bibliothèque nationale du Canada
2004
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Online Access: | http://hdl.handle.net/10315/13789 |
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ftyorkuniv:oai:yorkspace.library.yorku.ca:10315/13789 2023-10-01T03:53:49+02:00 The allocation of inorganic nitrogen (15 NH4+) to soil, microbial and plant biomass in an Arctic salt marsh. Buckeridge, Kate M. 2004 application/pdf http://hdl.handle.net/10315/13789 en eng Ottawa : National Library of Canada = Bibliothèque nationale du Canada Thesis (M.Sc.) - University of Toronto. K.M. Buckeridge: Theses Canada, 2004. (Amicus No. 31434694) http://hdl.handle.net/10315/13789 http://www.collectionscanada.gc.ca/obj/s4/f2/dsk4/etd/MQ95197.PDF Nitrogen cycle goose grazing goose grabbing Churchill Manitoba inorganic nitrogen Wapusk National Park Ecology La Perouse Bay Electronic Thesis or Dissertation 2004 ftyorkuniv 2023-09-02T23:02:33Z Masters Thesis completed in 2004 by K.M. Buckeridge at the University of Toronto. Supervised by Dr. R.L. Jefferies. This study has demonstrated, through the shared distribution of a single resource (15 NH4+), that plants and soil microbes compete for inorganic N in a N-limited system. At La Pérouse Bay, soil microorganisms out-compete plants for this resource, but their competitive advantage is dampened relative to microorganisms in other Arctic ecosystems by the effects of goose grazing that promote plant growth via the addition of faeces. There is a seasonal displacement of N allocation, as microbes continue to mineralize and slowly immobalize nitrogen in the winter. Loss of vegetation, as a result of goose grabbing, has led to changes in soil characteristics, including high salinity and low redox potentials. These edaphic conditions may dampen N-uptake by soil microoganisms in these disturbed soils. Seasonal grazing effects interact to contribute to a large potential N loss from these soils, altough this is minimized by the apparent abiotic fixation of inorganic N. Thesis Arctic Churchill Wapusk national park York University, Toronto: YorkSpace Arctic La Pérouse Bay ENVELOPE(-93.416,-93.416,58.750,58.750) |
institution |
Open Polar |
collection |
York University, Toronto: YorkSpace |
op_collection_id |
ftyorkuniv |
language |
English |
topic |
Nitrogen cycle goose grazing goose grabbing Churchill Manitoba inorganic nitrogen Wapusk National Park Ecology La Perouse Bay |
spellingShingle |
Nitrogen cycle goose grazing goose grabbing Churchill Manitoba inorganic nitrogen Wapusk National Park Ecology La Perouse Bay Buckeridge, Kate M. The allocation of inorganic nitrogen (15 NH4+) to soil, microbial and plant biomass in an Arctic salt marsh. |
topic_facet |
Nitrogen cycle goose grazing goose grabbing Churchill Manitoba inorganic nitrogen Wapusk National Park Ecology La Perouse Bay |
description |
Masters Thesis completed in 2004 by K.M. Buckeridge at the University of Toronto. Supervised by Dr. R.L. Jefferies. This study has demonstrated, through the shared distribution of a single resource (15 NH4+), that plants and soil microbes compete for inorganic N in a N-limited system. At La Pérouse Bay, soil microorganisms out-compete plants for this resource, but their competitive advantage is dampened relative to microorganisms in other Arctic ecosystems by the effects of goose grazing that promote plant growth via the addition of faeces. There is a seasonal displacement of N allocation, as microbes continue to mineralize and slowly immobalize nitrogen in the winter. Loss of vegetation, as a result of goose grabbing, has led to changes in soil characteristics, including high salinity and low redox potentials. These edaphic conditions may dampen N-uptake by soil microoganisms in these disturbed soils. Seasonal grazing effects interact to contribute to a large potential N loss from these soils, altough this is minimized by the apparent abiotic fixation of inorganic N. |
format |
Thesis |
author |
Buckeridge, Kate M. |
author_facet |
Buckeridge, Kate M. |
author_sort |
Buckeridge, Kate M. |
title |
The allocation of inorganic nitrogen (15 NH4+) to soil, microbial and plant biomass in an Arctic salt marsh. |
title_short |
The allocation of inorganic nitrogen (15 NH4+) to soil, microbial and plant biomass in an Arctic salt marsh. |
title_full |
The allocation of inorganic nitrogen (15 NH4+) to soil, microbial and plant biomass in an Arctic salt marsh. |
title_fullStr |
The allocation of inorganic nitrogen (15 NH4+) to soil, microbial and plant biomass in an Arctic salt marsh. |
title_full_unstemmed |
The allocation of inorganic nitrogen (15 NH4+) to soil, microbial and plant biomass in an Arctic salt marsh. |
title_sort |
allocation of inorganic nitrogen (15 nh4+) to soil, microbial and plant biomass in an arctic salt marsh. |
publisher |
Ottawa : National Library of Canada = Bibliothèque nationale du Canada |
publishDate |
2004 |
url |
http://hdl.handle.net/10315/13789 |
long_lat |
ENVELOPE(-93.416,-93.416,58.750,58.750) |
geographic |
Arctic La Pérouse Bay |
geographic_facet |
Arctic La Pérouse Bay |
genre |
Arctic Churchill Wapusk national park |
genre_facet |
Arctic Churchill Wapusk national park |
op_relation |
Thesis (M.Sc.) - University of Toronto. K.M. Buckeridge: Theses Canada, 2004. (Amicus No. 31434694) http://hdl.handle.net/10315/13789 |
op_rights |
http://www.collectionscanada.gc.ca/obj/s4/f2/dsk4/etd/MQ95197.PDF |
_version_ |
1778520780714278912 |