Associations between channel morphology and large woody debris in a lowland river
Identifieur interne : 00B820 ( Main/Exploration ); précédent : 00B819; suivant : 00B821Associations between channel morphology and large woody debris in a lowland river
Auteurs : Victor Hughes [Australie] ; Martin C. Thoms [Australie]Source :
- IAHS-AISH publication [ 0144-7815 ] ; 2002.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Statistique.
English descriptors
- KwdEn :
Abstract
Associations between channel morphology and the distribution and character of large woody debris (LWD) within a 95-km reach of the River Murray, Australia were examined at different scales. At the reach scale there was a uniform pattern of LWD distribution along the river. Most LWD was associated with eroding sites, close to the bank and aligned at 90° or less to the flow. At the sub-reach scale (0.5-1.5 km) strong associations were found between the curvature of the river channel and LWD distribution. Distribution patterns at this scale suggest that LWD is mainly recruited by bank erosion and falls into the river perpendicular to the flow. It subsequently remains close to where it falls and is realigned rather than actively moved by the river. Within meander bends there was twice as much LWD along the outer bank as there was along the inner bank, and while the amount on the inner bank declined with increasing distance into the bend the reverse was true for the outer bank.
Affiliations:
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Le document en format XML
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Thoms</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>River and Floodplain Laboratory, University of Canberra</s1><s2>Australian Capital Territory 2601</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Australian Capital Territory 2601</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">03-0415390</idno><date when="2002">2002</date><idno type="stanalyst">PASCAL 03-0415390 INIST</idno><idno type="RBID">Pascal:03-0415390</idno><idno type="wicri:Area/PascalFrancis/Corpus">005236</idno><idno type="wicri:Area/PascalFrancis/Curation">000E90</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">005528</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">005528</idno><idno type="wicri:doubleKey">0144-7815:2002:Hughes V:associations:between:channel</idno><idno type="wicri:Area/Main/Merge">00C649</idno><idno type="wicri:Area/Main/Curation">00B820</idno><idno type="wicri:Area/Main/Exploration">00B820</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Associations between channel morphology and large woody debris in a lowland river</title><author><name sortKey="Hughes, Victor" sort="Hughes, Victor" uniqKey="Hughes V" first="Victor" last="Hughes">Victor Hughes</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>River and Floodplain Laboratory, University of Canberra</s1><s2>Australian Capital Territory 2601</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Australian Capital Territory 2601</wicri:noRegion></affiliation></author><author><name sortKey="Thoms, Martin C" sort="Thoms, Martin C" uniqKey="Thoms M" first="Martin C." last="Thoms">Martin C. Thoms</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>River and Floodplain Laboratory, University of Canberra</s1><s2>Australian Capital Territory 2601</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Australian Capital Territory 2601</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">IAHS-AISH publication</title><idno type="ISSN">0144-7815</idno><imprint><date when="2002">2002</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">IAHS-AISH publication</title><idno type="ISSN">0144-7815</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Murray River</term><term>River banks</term><term>channel geometry</term><term>debris</term><term>dendrograms</term><term>distribution</term><term>erosion</term><term>meanders</term><term>morphology</term><term>multivariate analysis</term><term>statistics</term><term>wood</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Rivière Murray</term><term>Géométrie chenal</term><term>Morphologie</term><term>Distribution</term><term>Débris</term><term>Bois</term><term>Erosion</term><term>Méandre</term><term>Statistique</term><term>Analyse multivariable</term><term>Berge rivière</term><term>Dendrogramme</term><term>Ecogéomorphologie</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Statistique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Associations between channel morphology and the distribution and character of large woody debris (LWD) within a 95-km reach of the River Murray, Australia were examined at different scales. At the reach scale there was a uniform pattern of LWD distribution along the river. Most LWD was associated with eroding sites, close to the bank and aligned at 90° or less to the flow. At the sub-reach scale (0.5-1.5 km) strong associations were found between the curvature of the river channel and LWD distribution. Distribution patterns at this scale suggest that LWD is mainly recruited by bank erosion and falls into the river perpendicular to the flow. It subsequently remains close to where it falls and is realigned rather than actively moved by the river. Within meander bends there was twice as much LWD along the outer bank as there was along the inner bank, and while the amount on the inner bank declined with increasing distance into the bend the reverse was true for the outer bank.</div></front></TEI><affiliations><list><country><li>Australie</li></country></list><tree><country name="Australie"><noRegion><name sortKey="Hughes, Victor" sort="Hughes, Victor" uniqKey="Hughes V" first="Victor" last="Hughes">Victor Hughes</name></noRegion><name sortKey="Thoms, Martin C" sort="Thoms, Martin C" uniqKey="Thoms M" first="Martin C." last="Thoms">Martin C. Thoms</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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