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Controls affecting methane fluxes in restored and natural tidal wetlands
Descriptive
TitleInfo
Title
Controls affecting methane fluxes in restored and natural tidal wetlands
Name
(type = personal)
NamePart
(type = family)
Tripathee
NamePart
(type = given)
Rajan
NamePart
(type = date)
1975-
DisplayForm
Rajan Tripathee
Role
RoleTerm
(authority = RULIB)
author
Name
(type = personal)
NamePart
(type = family)
Schäfer
NamePart
(type = given)
Karina VR
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Karina VR Schäfer
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Holzapfel
NamePart
(type = given)
Claus
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Claus Holzapfel
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Vanderklein
NamePart
(type = given)
Dirk
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Dirk Vanderklein
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Jaffe
NamePart
(type = given)
Peter
DisplayForm
Peter Jaffe
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
outside member
Name
(type = corporate)
NamePart
Rutgers University
Role
RoleTerm
(authority = RULIB)
degree grantor
Name
(type = corporate)
NamePart
Graduate School - Newark
Role
RoleTerm
(authority = RULIB)
school
TypeOfResource
Text
Genre
(authority = marcgt)
theses
OriginInfo
DateCreated
(qualifier = exact)
2014
DateOther
(qualifier = exact);
(type = degree)
2014-10
CopyrightDate
(encoding = w3cdtf)
2014
Place
PlaceTerm
(type = code)
xx
Language
LanguageTerm
(authority = ISO639-2b);
(type = code)
eng
Abstract
(type = abstract)
Natural wetlands emit one third of global methane (CH4), the second most important greenhouse gas after carbon dioxide (CO2). However, there is a huge uncertainty about regional and global CH4 emission estimates, because of the estimation of CH4 emissions for large areas based on the CH4 flux measurement made in highly heterogeneous, poorly mapped small areas. But, within a small area of wetland, there can be a huge spatial variation in CH4 flux due to spatial heterogeneity. Therefore, for better understanding of CH4 dynamics of a wetland, CH4 flux measurement should be made in a variety of microsites of a wetland covering different scales, vegetation, and heterogeneity of the sites. Our two-year CH4 flux measurements from two microsites from each of three wetlands of New Jersey Meadowlands will help to refine CH4 budget of low salinity marshes, which have a large uncertainty about their CH4 budget. The annual CH4 flux in a restored high marsh site varied from 1.8 (Spartina patens marsh) - 26.6 (Phragmites australis marsh) g CH4 m-2 yr-1. The S. alterniflora marsh and mud flat area of another restored low marsh, emitted 15.6 and 7.5 g CH4 m-2 yr-1, respectively. The annual emission of CH4 for a S. patens marsh and a P. australis marsh at a natural high marsh site were 2.7 and 12.6 g CH4 m-2 yr-1, respectively. We also investigated relationships between CH4 flux and various physical factors including air and soil temperature, net radiation, and vapor pressure deficit (VPD). Presence of most of the belowground biomasses close to the soil surface suggests that most of the effect of belowground biomass on CH4 dynamics occurs close to soil and atmosphere interface. Investigations of belowground biomass distribution, root and rhizome characteristics as well as leaf area index (LAI), in this study aid modeling CH4 and other greenhouse gas transport. There was higher CH4 emission during incoming tide than during outgoing tide in a mud flat microsite; however, we did not find a relationship between tidal water depth difference and CH4 flux in vegetated areas. The weak, but positive relationship between CH4 flux and VPD in vegetated areas suggest stomatal control on CH4 flux.
Subject
(authority = RUETD)
Topic
Biology
RelatedItem
(type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
Identifier
ETD_5836
PhysicalDescription
Form
(authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (xi, 115 p. : ill.)
Note
(type = degree)
Ph.D.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = vita)
Includes vita
Subject
(authority = ETD-LCSH)
Topic
Methane--Environmental aspects
Subject
(authority = ETD-LCSH)
Topic
Wetlands--New Jersey
Note
(type = statement of responsibility)
by Rajan Tripathee
RelatedItem
(type = host)
TitleInfo
Title
Graduate School - Newark Electronic Theses and Dissertations
Identifier
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rucore10002600001
Location
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T31Z462Z
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
RightsDeclaration
(ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Tripathee
GivenName
Rajan
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
(encoding = w3cdtf);
(qualifier = exact);
(point = start)
2014-09-12 13:47:43
AssociatedEntity
Name
Rajan Tripathee
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - Newark
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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Technical
RULTechMD
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ContentModel
ETD
OperatingSystem
(VERSION = 5.1)
windows xp
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