Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.

In the discontinuous permafrost zone of boreal western continental Canada, permafrost is limited almost exclusively to ombrotrophic peatlands. Permafrost in peatlands recently has been degrading and continues to degrade at its southern limit across western Canada, with no evidence of regeneration. T...

Full description

Bibliographic Details
Main Authors: Turetsky, Merritt., Wieder, R Kelman., Williams, Christopher., Vitt, Dale.
Format: Villanova Faculty Authorship
Language:English
Published: 2000
Online Access:http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:179339
id vudl:179339
record_format vudl
institution Villanova University
collection Digital Library
modeltype_str_mv vudl-system:CoreModel
vudl-system:ResourceCollection
vudl-system:CollectionModel
datastream_str_mv MEMBER-LIST-RAW
LEGACY-METS
LICENSE
DC
STRUCTMAP
AUDIT
MEMBER-QUERY
PARENT-LIST
PROCESS-MD
RELS-EXT
AGENTS
THUMBNAIL
PARENT-LIST-RAW
PARENT-QUERY
hierarchytype
hierarchy_all_parents_str_mv vudl:179230
vudl:172968
vudl:641262
vudl:3
vudl:1
sequence_vudl_179230_str 0000000037
hierarchy_top_id vudl:641262
hierarchy_top_title Villanova Faculty Publications
fedora_parent_id_str_mv vudl:179230
hierarchy_first_parent_id_str vudl:179339
hierarchy_parent_id vudl:179230
hierarchy_parent_title Wieder R Kelman
hierarchy_sequence_sort_str 0000000037
hierarchy_sequence 0000000037
spelling Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
Turetsky, Merritt.
Wieder, R Kelman.
Williams, Christopher.
Vitt, Dale.
In the discontinuous permafrost zone of boreal western continental Canada, permafrost is limited almost exclusively to ombrotrophic peatlands. Permafrost in peatlands recently has been degrading and continues to degrade at its southern limit across western Canada, with no evidence of regeneration. The melting of permafrost could have dramatic effects on organic matter accumulation, organochemical properties, and nutrient status in peatlands. Our objectives are to quantify differences in peat chemistry (i.e., concentrations of organic fractions, N, P, and S) and rates of organic matter accumulation over the past 200 years between a site with permafrost, a site with degraded permafrost (internal lawn), and three sites with no evidence of permafrost since the last glaciation (continental peatlands: two bogs and one poor Fen). Results indicate that pear chemistry may differ according to the presence, absence, or degradation of permafrost. Recent rates of organic matter accumulation follow similar trends over the past 100-200 years in the permafrost and continental bogs; however, net rates of organic matter accumulation are accelerated by 60% in the internal lawn. As decomposition in peatlands is influenced by nutrient limitations and organic matter quality, peat chemistry is likely to be a critical factor in the carbon balance response of boreal peatlands to climate change.
2000
Villanova Faculty Authorship
vudl:179339
Ecoscience 7(3), 2000, 379-392.
en
dc.title_txt_mv Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
dc.creator_txt_mv Turetsky, Merritt.
Wieder, R Kelman.
Williams, Christopher.
Vitt, Dale.
dc.description_txt_mv In the discontinuous permafrost zone of boreal western continental Canada, permafrost is limited almost exclusively to ombrotrophic peatlands. Permafrost in peatlands recently has been degrading and continues to degrade at its southern limit across western Canada, with no evidence of regeneration. The melting of permafrost could have dramatic effects on organic matter accumulation, organochemical properties, and nutrient status in peatlands. Our objectives are to quantify differences in peat chemistry (i.e., concentrations of organic fractions, N, P, and S) and rates of organic matter accumulation over the past 200 years between a site with permafrost, a site with degraded permafrost (internal lawn), and three sites with no evidence of permafrost since the last glaciation (continental peatlands: two bogs and one poor Fen). Results indicate that pear chemistry may differ according to the presence, absence, or degradation of permafrost. Recent rates of organic matter accumulation follow similar trends over the past 100-200 years in the permafrost and continental bogs; however, net rates of organic matter accumulation are accelerated by 60% in the internal lawn. As decomposition in peatlands is influenced by nutrient limitations and organic matter quality, peat chemistry is likely to be a critical factor in the carbon balance response of boreal peatlands to climate change.
dc.date_txt_mv 2000
dc.format_txt_mv Villanova Faculty Authorship
dc.identifier_txt_mv vudl:179339
dc.source_txt_mv Ecoscience 7(3), 2000, 379-392.
dc.language_txt_mv en
author Turetsky, Merritt.
Wieder, R Kelman.
Williams, Christopher.
Vitt, Dale.
spellingShingle Turetsky, Merritt.
Wieder, R Kelman.
Williams, Christopher.
Vitt, Dale.
Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
author_facet Turetsky, Merritt.
Wieder, R Kelman.
Williams, Christopher.
Vitt, Dale.
dc_source_str_mv Ecoscience 7(3), 2000, 379-392.
format Villanova Faculty Authorship
author_sort Turetsky, Merritt.
dc_date_str 2000
dc_title_str Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
description In the discontinuous permafrost zone of boreal western continental Canada, permafrost is limited almost exclusively to ombrotrophic peatlands. Permafrost in peatlands recently has been degrading and continues to degrade at its southern limit across western Canada, with no evidence of regeneration. The melting of permafrost could have dramatic effects on organic matter accumulation, organochemical properties, and nutrient status in peatlands. Our objectives are to quantify differences in peat chemistry (i.e., concentrations of organic fractions, N, P, and S) and rates of organic matter accumulation over the past 200 years between a site with permafrost, a site with degraded permafrost (internal lawn), and three sites with no evidence of permafrost since the last glaciation (continental peatlands: two bogs and one poor Fen). Results indicate that pear chemistry may differ according to the presence, absence, or degradation of permafrost. Recent rates of organic matter accumulation follow similar trends over the past 100-200 years in the permafrost and continental bogs; however, net rates of organic matter accumulation are accelerated by 60% in the internal lawn. As decomposition in peatlands is influenced by nutrient limitations and organic matter quality, peat chemistry is likely to be a critical factor in the carbon balance response of boreal peatlands to climate change.
title Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
title_full Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
title_fullStr Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
title_full_unstemmed Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
title_short Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
title_sort organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal alberta.
publishDate 2000
normalized_sort_date 2000-01-01T00:00:00Z
language English
collection_title_sort_str organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal alberta.
fgs.ownerId_txt_mv diglibEditor
relsext.hasModel_txt_mv http://hades.library.villanova.edu:8080/rest/vudl-system:CoreModel
http://hades.library.villanova.edu:8080/rest/vudl-system:ResourceCollection
http://hades.library.villanova.edu:8080/rest/vudl-system:CollectionModel
fgs.type_txt_mv http://www.w3.org/ns/ldp#Container
http://www.w3.org/ns/ldp#BasicContainer
http://www.w3.org/ns/ldp#Resource
http://fedora.info/definitions/v4/repository#Container
http://fedora.info/definitions/v4/repository#Resource
http://www.w3.org/ns/ldp#RDFSource
fgs.createdBy_txt_mv fedoraAdmin
relsext.hasLegacyURL_txt_mv http://digital.library.villanova.edu/Villanova%20Digital%20Collection/Faculty%20Fulltext/Wieder%20R%20Kelman/WiederRKelman-5d1ad2ec-52ed-4e7c-abef-21028baefdc3.xml
fgs.label_txt_mv Organic matter accumulation, peat chemistry, and permafrost melting in peatlands of boreal Alberta.
fgs.lastModifiedDate_txt_mv 2021-04-12T19:10:21.866Z
relsext.isMemberOf_txt_mv http://hades.library.villanova.edu:8080/rest/vudl:179230
relsext.itemID_txt_mv oai:digital.library.villanova.edu:vudl:179339
fgs.createdDate_txt_mv 2013-01-22T12:50:29.876Z
fgs.state_txt_mv Active
relsext.sequence_txt_mv vudl:179230#37
relsext.sortOn_txt_mv title
fgs.lastModifiedBy_txt_mv fedoraAdmin
has_order_str no
agent.name_txt_mv Falvey Memorial Library, Villanova University
klk
license.mdRef_str http://digital.library.villanova.edu/copyright.html
license_str protected
has_thumbnail_str true
THUMBNAIL_contentDigest_digest_str 203c69e18f4f46c81e9892448d2c07cd
first_indexed 2014-01-11T22:45:08Z
last_indexed 2021-04-12T19:39:39Z
_version_ 1755480262319276032
subpages