Composition and Biodegradation of DOM Leached from Permafrost End-members across the Western Canadian Arctic ...
Organic matter, upon dissolution into the aqueous state as dissolved organic matter (DOM), can undergo mineralization by microbes (biodegradation). There has been increasing effort to characterize DOM released from thawing permafrost because it may perpetuate a permafrost carbon feedback. Permafrost...
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| Format: | Doctoral or Postdoctoral Thesis |
| Language: | English |
| Published: |
University of Alberta Library
2020
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.7939/r3-4y8a-aj96 https://ualberta.scholaris.ca/handle/123456789/62058 |
| _version_ | 1835011511774347264 |
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| author | MacDonald, Erin N. |
| author_facet | MacDonald, Erin N. |
| author_sort | MacDonald, Erin N. |
| collection | Unknown |
| description | Organic matter, upon dissolution into the aqueous state as dissolved organic matter (DOM), can undergo mineralization by microbes (biodegradation). There has been increasing effort to characterize DOM released from thawing permafrost because it may perpetuate a permafrost carbon feedback. Permafrost-derived DOM has a composition that can be highly susceptible to biodegradation (biolabile), but studies to date have been limited in scope. Importantly, diversity in deposit type and thaw modification processes have led to spatial and stratigraphic variability in permafrost, but our understanding of how the composition and biolability of DOM derived from differing permafrost types (end-members) is poor. Furthermore, few studies couple biolability measurements with assessing the microbial community structure, despite the important role that these microbes play in degrading DOM. This project aims to investigate how the composition of DOM leached from diverse permafrost end-members may vary, how compositional ... |
| format | Doctoral or Postdoctoral Thesis |
| genre | Arctic permafrost |
| genre_facet | Arctic permafrost |
| geographic | Arctic |
| geographic_facet | Arctic |
| id | ftdatacite:10.7939/r3-4y8a-aj96 |
| institution | Open Polar |
| language | English |
| op_collection_id | ftdatacite |
| op_doi | https://doi.org/10.7939/r3-4y8a-aj96 |
| op_rights | Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission. |
| publishDate | 2020 |
| publisher | University of Alberta Library |
| record_format | openpolar |
| spelling | ftdatacite:10.7939/r3-4y8a-aj96 2025-06-15T14:21:18+00:00 Composition and Biodegradation of DOM Leached from Permafrost End-members across the Western Canadian Arctic ... MacDonald, Erin N. 2020 https://dx.doi.org/10.7939/r3-4y8a-aj96 https://ualberta.scholaris.ca/handle/123456789/62058 en eng University of Alberta Library Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission. permafrost dissolved organic matter composition biodegradation Thesis Dissertation thesis 2020 ftdatacite https://doi.org/10.7939/r3-4y8a-aj96 2025-06-02T13:11:13Z Organic matter, upon dissolution into the aqueous state as dissolved organic matter (DOM), can undergo mineralization by microbes (biodegradation). There has been increasing effort to characterize DOM released from thawing permafrost because it may perpetuate a permafrost carbon feedback. Permafrost-derived DOM has a composition that can be highly susceptible to biodegradation (biolabile), but studies to date have been limited in scope. Importantly, diversity in deposit type and thaw modification processes have led to spatial and stratigraphic variability in permafrost, but our understanding of how the composition and biolability of DOM derived from differing permafrost types (end-members) is poor. Furthermore, few studies couple biolability measurements with assessing the microbial community structure, despite the important role that these microbes play in degrading DOM. This project aims to investigate how the composition of DOM leached from diverse permafrost end-members may vary, how compositional ... Doctoral or Postdoctoral Thesis Arctic permafrost Unknown Arctic |
| spellingShingle | permafrost dissolved organic matter composition biodegradation MacDonald, Erin N. Composition and Biodegradation of DOM Leached from Permafrost End-members across the Western Canadian Arctic ... |
| title | Composition and Biodegradation of DOM Leached from Permafrost End-members across the Western Canadian Arctic ... |
| title_full | Composition and Biodegradation of DOM Leached from Permafrost End-members across the Western Canadian Arctic ... |
| title_fullStr | Composition and Biodegradation of DOM Leached from Permafrost End-members across the Western Canadian Arctic ... |
| title_full_unstemmed | Composition and Biodegradation of DOM Leached from Permafrost End-members across the Western Canadian Arctic ... |
| title_short | Composition and Biodegradation of DOM Leached from Permafrost End-members across the Western Canadian Arctic ... |
| title_sort | composition and biodegradation of dom leached from permafrost end-members across the western canadian arctic ... |
| topic | permafrost dissolved organic matter composition biodegradation |
| topic_facet | permafrost dissolved organic matter composition biodegradation |
| url | https://dx.doi.org/10.7939/r3-4y8a-aj96 https://ualberta.scholaris.ca/handle/123456789/62058 |