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Hydrologic variability and its influence on long‐term peat dynamics

Descriptive

TypeOfResource
Text
TitleInfo
Title
Hydrologic variability and its influence on long‐term peat dynamics
Name (type = personal)
NamePart (type = family)
Rennermalm
NamePart (type = given)
Asa K.
Affiliation
SAS - Geography, Rutgers University
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Nordbotten
NamePart (type = given)
Jan M.
Affiliation
Department of Mathematics, University of Bergen
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Wood
NamePart (type = given)
Eric F.
Affiliation
Department of Civil and Environmental Engineering, Princeton University
Role
RoleTerm (authority = marcrt); (type = text)
author
Genre (authority = RULIB-FS)
Article, Refereed
Genre (authority = NISO JAV)
Version of Record (VoR)
Note (type = JournalCitation)
Rennermalm, Asa K., Nordbotten, Jan M., and Wood, Eric F., "Hydrologic variability and its influence on long‐term peat dynamics." Water Resources Research 46 (Fall 2010), W12546. doi:10.1029/2009WR008242
Note
Copyright 2010 by the American Geophysical Union.
Note (type = peerReview)
Peer reviewed
OriginInfo
DateCreated (encoding = w3cdtf); (keyDate = yes); (qualifier = exact)
2010
Publisher
American Geophysical Union
Abstract (type = abstract)
Peatlands are carbon‐rich ecosystems that are extensive in the northern high latitudes where significant 21st century climate changes are expected. In response to climate change, peatlands may become a net source of greenhouse gases, thereby inducing a positive climate feedback effect. In this paper, the impact of precipitation variability and the mean climate state on long‐term peat accumulation is investigated with model simulations. The models couple peat accumulation with the hydrological cycle, which results in peatland bistability, where peatlands may take the physical characteristics from one of two possible alternative stable states. The models consider precipitation as a stochastic forcing variable, temperature‐dependent functions and are parameterized with climatology and peat characteristics to represent the West Siberian Lowlands (WSL) between 55°N and 60°N. Observed WSL peat depths statistically imply bistability. Peatland bistability, however, is eliminated in model simulations with moderate‐to‐large precipitation variability and warmer and wetter climates. This suggests that projected late 21st century climate change would put the thick peatlands in WSL on a transition to thin peatlands. The loss of thick peatlands could significantly increase atmospheric carbon dioxide and provide a positive climate feedback effect. However, the impacts depend on the importance of unaccounted stabilizing factors. The study also shows that precipitation variability induces peatlands to switch between extended periods of accumulation and depletion even if the peatlands are in long‐term equilibrium. Thus, short‐term observations may see only natural fluctuations and new, longer‐term observational strategies are necessary to diagnose if peatlands are undergoing fundamental changes.
PhysicalDescription
InternetMediaType
application/pdf
Extent
18 p.
Subject (authority = LCSH)
Topic
Hydrology
Subject (authority = LCSH)
Topic
Peatlands
Subject (authority = LCSH)
Topic
Stochastic models
Extension
DescriptiveEvent
Type
Citation
DateTime (encoding = w3cdtf)
2010
AssociatedObject
Type
Journal
Relationship
Has part
Name
Water Resources Research
Identifier (type = volume and issue)
46(12)
Reference
http://dx.doi.org/10.1029/2009WR008242
Detail
W12546
Extension
DescriptiveEvent
Type
Grant award
AssociatedEntity
Role
Funder
Name
National Science Foundation
AssociatedObject
Type
Grant number
Name
0629471
Extension
DescriptiveEvent
Type
Grant award
AssociatedEntity
Role
Funder
Name
National Aeronautics and Space Administration
AssociatedObject
Type
Grant number
Name
NNG06GE62G
Language
LanguageTerm (authority = ISO 639-3:2007); (type = text)
English
RelatedItem (type = host)
TitleInfo
Title
Rennermalm Asa Collection
Identifier (type = local)
rucore30121800001
Identifier (type = doi)
doi:10.7282/T3DJ5D1N
Genre (authority = ExL-Esploro)
Journal Article
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Rights

RightsHolder (type = corporate)
Name
American Geophysical Union
Role
Copyright holder
RightsDeclaration (AUTHORITY = FS); (ID = rulibRdec0004)
Copyright for scholarly resources published in RUcore is retained by the copyright holder. By virtue of its appearance in this open access medium, you are free to use this resource, with proper attribution, in educational and other non-commercial settings. Other uses, such as reproduction or republication, may require the permission of the copyright holder.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsEvent
Type
Permission or license
AssociatedObject
Type
License
Name
Multiple author license v. 1
Detail
I hereby grant to Rutgers, The State University of New Jersey (Rutgers) the non-exclusive right to retain, reproduce, and distribute the deposited work (Work) in whole or in part, in and from its electronic format, without fee. This agreement does not represent a transfer of copyright to Rutgers.Rutgers may make and keep more than one copy of the Work for purposes of security, backup, preservation, and access and may migrate the Work to any medium or format for the purpose of preservation and access in the future. Rutgers will not make any alteration, other than as allowed by this agreement, to the Work.I represent and warrant to Rutgers that the Work is my original work. I also represent that the Work does not, to the best of my knowledge, infringe or violate any rights of others.I further represent and warrant that I have obtained all necessary rights to permit Rutgers to reproduce and distribute the Work and that any third-party owned content is clearly identified and acknowledged within the Work.By granting this license, I acknowledge that I have read and agreed to the terms of this agreement and all related RUcore and Rutgers policies.
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Technical

RULTechMD (ID = TECHNICAL1)
ContentModel
Document
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