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Sediment transport mechanisms on soil-mantled slopes

Braun, Jean; Heimsath, Arjun M.; Chappell, John

Description

Landscape evolution is modeled widely using a simple creep law for complex processes of sediment transport. Here, field data show how a new transport model, combined with an exponential soil production law, better captures spatial variations of soil thickness on hillslopes. We combine parameterizations of simple and depth-dependent creep with overland flow to predict soil thickness and suggest how soil distribution evolves in response to climatic and tectonic forcing. We present an empirical...[Show more]

dc.contributor.authorBraun, Jean
dc.contributor.authorHeimsath, Arjun M.
dc.contributor.authorChappell, John
dc.date.accessioned2015-12-13T23:16:30Z
dc.date.available2015-12-13T23:16:30Z
dc.identifier.issn0091-7613
dc.identifier.urihttp://hdl.handle.net/1885/89445
dc.description.abstractLandscape evolution is modeled widely using a simple creep law for complex processes of sediment transport. Here, field data show how a new transport model, combined with an exponential soil production law, better captures spatial variations of soil thickness on hillslopes. We combine parameterizations of simple and depth-dependent creep with overland flow to predict soil thickness and suggest how soil distribution evolves in response to climatic and tectonic forcing. We present an empirical expression for the response time of the system to external forcing that shows strong dependence on relief and is independent of soil production rate. We suggest that this parameterization may be used to quantify upland carbon storage and removal and predict impacts of deforestation or rapid climatic changes.
dc.publisherGeological Society of America Inc
dc.sourceGeology
dc.subjectKeywords: Landscape evolution; Climate change; Deforestation; Sediment transport; Soils; Tectonics; Geology; creep; geomorphology; hillslope; landscape evolution; sediment transport; slope dynamics Dating; Geomorphology; Landscape evolution; Soil dynamics; Transport
dc.titleSediment transport mechanisms on soil-mantled slopes
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume29
dc.date.issued2001
local.identifier.absfor040303 - Geochronology
local.identifier.ariespublicationMigratedxPub19475
local.type.statusPublished Version
local.contributor.affiliationBraun, Jean, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationHeimsath, A, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationChappell, John, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.startpage683
local.bibliographicCitation.lastpage686
local.identifier.doi10.1130/0091-7613(2001)029<0683:STMOSM>2.0.CO
dc.date.updated2016-02-24T09:48:20Z
local.identifier.scopusID2-s2.0-84874956604
CollectionsANU Research Publications

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