Long-term decomposition of Betula glandulosa and Carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems

Poster presented at the 2019 Canadian Soil Science Society & Canadian Society of Agricultural and Forest Meteorology Annual Meeting (July 9 to 13, 2019) in Saskatoon . Poster Abstract: In the wake of climatic warming, widespread shrub encroachment has been reported in tundra ecosystems of the ci...

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Main Authors: Chantae Robinson, Roy-Léveillée, Pascale, Basiliko, Nathan, Hazlett, Paul W., Horrigan, Emma, Jeffries, Robert L.
Format: Still Image
Language:unknown
Published: figshare 2019
Subjects:
Online Access:https://dx.doi.org/10.6084/m9.figshare.9457145
https://figshare.com/articles/Long-term_decomposition_of_Betula_glandulosa_and_Carex_aquatilis_under_the_framework_of_climate-induced_shifts_in_vegetation_shrubification_in_tundra_ecosystems/9457145
id ftdatacite:10.6084/m9.figshare.9457145
record_format openpolar
spelling ftdatacite:10.6084/m9.figshare.9457145 2023-05-15T15:53:15+02:00 Long-term decomposition of Betula glandulosa and Carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems Chantae Robinson Roy-Léveillée, Pascale Basiliko, Nathan Hazlett, Paul W. Horrigan, Emma Jeffries, Robert L. 2019 https://dx.doi.org/10.6084/m9.figshare.9457145 https://figshare.com/articles/Long-term_decomposition_of_Betula_glandulosa_and_Carex_aquatilis_under_the_framework_of_climate-induced_shifts_in_vegetation_shrubification_in_tundra_ecosystems/9457145 unknown figshare Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY 60299 Ecology not elsewhere classified FOS Biological sciences 69902 Global Change Biology 60504 Microbial Ecology 50301 Carbon Sequestration Science FOS Agriculture, forestry and fisheries 50101 Ecological Impacts of Climate Change FOS Earth and related environmental sciences Environmental Science 50104 Landscape Ecology 50303 Soil Biology Soil Science Image graphic Poster ImageObject 2019 ftdatacite https://doi.org/10.6084/m9.figshare.9457145 2021-11-05T12:55:41Z Poster presented at the 2019 Canadian Soil Science Society & Canadian Society of Agricultural and Forest Meteorology Annual Meeting (July 9 to 13, 2019) in Saskatoon . Poster Abstract: In the wake of climatic warming, widespread shrub encroachment has been reported in tundra ecosystems of the circumpolar north. This project examines the impacts of increased shrubiness on decomposition rates, soil microbial community, and nutrient cycling in the continuous permafrost zone of the Hudson Bay Lowlands. Specifically, this investigation will (1) assess patterns of shrub encroachment near Churchill, Manitoba, using sequential analysis of Landsat imagery; and (2) compare long-term decomposition and nutrient release rates (over 10 years) for Betula glandulosa (shrubs) and Carex aquatilis (sedges) in a fen affected by shrub encroachment using litter bags, elemental analysis, and soil microbial community characterization. Preliminary results indicate significantly slower rates of decomposition for shrub litter, with k values of 0.137 (R 2 = 0.86) and 0.265 (R 2 = 0.92) for B. glandulosa and C. aquatilis respectively. These first results suggest that climate-induced shifts in vegetation structure may be associated with a negative feedback to climatic warming, as more carbon is stored in plant litter in areas with shrubby vegetation. Poster citation: Robinson C, Roy-Léveillée P, Hazlett P, Horrigan E, Basiliko N (2019) Comparing the decomposition rates of Betula glandulosa and Carex aquatilis in context of climate-induced “shrubification” of tundra ecosystems. 2019 Canadian Soil Science Society & Canadian Society of Agricultural and Forest Meteorology Annual Meeting , July 9 to 13, 2019, Saskatoon. doi:10.60684/m9.figshare.9457145 Still Image Carex aquatilis Churchill Hudson Bay permafrost Tundra DataCite Metadata Store (German National Library of Science and Technology) Hudson Bay Hudson Hazlett ENVELOPE(167.583,167.583,-72.100,-72.100)
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic 60299 Ecology not elsewhere classified
FOS Biological sciences
69902 Global Change Biology
60504 Microbial Ecology
50301 Carbon Sequestration Science
FOS Agriculture, forestry and fisheries
50101 Ecological Impacts of Climate Change
FOS Earth and related environmental sciences
Environmental Science
50104 Landscape Ecology
50303 Soil Biology
Soil Science
spellingShingle 60299 Ecology not elsewhere classified
FOS Biological sciences
69902 Global Change Biology
60504 Microbial Ecology
50301 Carbon Sequestration Science
FOS Agriculture, forestry and fisheries
50101 Ecological Impacts of Climate Change
FOS Earth and related environmental sciences
Environmental Science
50104 Landscape Ecology
50303 Soil Biology
Soil Science
Chantae Robinson
Roy-Léveillée, Pascale
Basiliko, Nathan
Hazlett, Paul W.
Horrigan, Emma
Jeffries, Robert L.
Long-term decomposition of Betula glandulosa and Carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems
topic_facet 60299 Ecology not elsewhere classified
FOS Biological sciences
69902 Global Change Biology
60504 Microbial Ecology
50301 Carbon Sequestration Science
FOS Agriculture, forestry and fisheries
50101 Ecological Impacts of Climate Change
FOS Earth and related environmental sciences
Environmental Science
50104 Landscape Ecology
50303 Soil Biology
Soil Science
description Poster presented at the 2019 Canadian Soil Science Society & Canadian Society of Agricultural and Forest Meteorology Annual Meeting (July 9 to 13, 2019) in Saskatoon . Poster Abstract: In the wake of climatic warming, widespread shrub encroachment has been reported in tundra ecosystems of the circumpolar north. This project examines the impacts of increased shrubiness on decomposition rates, soil microbial community, and nutrient cycling in the continuous permafrost zone of the Hudson Bay Lowlands. Specifically, this investigation will (1) assess patterns of shrub encroachment near Churchill, Manitoba, using sequential analysis of Landsat imagery; and (2) compare long-term decomposition and nutrient release rates (over 10 years) for Betula glandulosa (shrubs) and Carex aquatilis (sedges) in a fen affected by shrub encroachment using litter bags, elemental analysis, and soil microbial community characterization. Preliminary results indicate significantly slower rates of decomposition for shrub litter, with k values of 0.137 (R 2 = 0.86) and 0.265 (R 2 = 0.92) for B. glandulosa and C. aquatilis respectively. These first results suggest that climate-induced shifts in vegetation structure may be associated with a negative feedback to climatic warming, as more carbon is stored in plant litter in areas with shrubby vegetation. Poster citation: Robinson C, Roy-Léveillée P, Hazlett P, Horrigan E, Basiliko N (2019) Comparing the decomposition rates of Betula glandulosa and Carex aquatilis in context of climate-induced “shrubification” of tundra ecosystems. 2019 Canadian Soil Science Society & Canadian Society of Agricultural and Forest Meteorology Annual Meeting , July 9 to 13, 2019, Saskatoon. doi:10.60684/m9.figshare.9457145
format Still Image
author Chantae Robinson
Roy-Léveillée, Pascale
Basiliko, Nathan
Hazlett, Paul W.
Horrigan, Emma
Jeffries, Robert L.
author_facet Chantae Robinson
Roy-Léveillée, Pascale
Basiliko, Nathan
Hazlett, Paul W.
Horrigan, Emma
Jeffries, Robert L.
author_sort Chantae Robinson
title Long-term decomposition of Betula glandulosa and Carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems
title_short Long-term decomposition of Betula glandulosa and Carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems
title_full Long-term decomposition of Betula glandulosa and Carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems
title_fullStr Long-term decomposition of Betula glandulosa and Carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems
title_full_unstemmed Long-term decomposition of Betula glandulosa and Carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems
title_sort long-term decomposition of betula glandulosa and carex aquatilis under the framework of climate-induced shifts in vegetation (shrubification) in tundra ecosystems
publisher figshare
publishDate 2019
url https://dx.doi.org/10.6084/m9.figshare.9457145
https://figshare.com/articles/Long-term_decomposition_of_Betula_glandulosa_and_Carex_aquatilis_under_the_framework_of_climate-induced_shifts_in_vegetation_shrubification_in_tundra_ecosystems/9457145
long_lat ENVELOPE(167.583,167.583,-72.100,-72.100)
geographic Hudson Bay
Hudson
Hazlett
geographic_facet Hudson Bay
Hudson
Hazlett
genre Carex aquatilis
Churchill
Hudson Bay
permafrost
Tundra
genre_facet Carex aquatilis
Churchill
Hudson Bay
permafrost
Tundra
op_rights Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
cc-by-4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.6084/m9.figshare.9457145
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