Rapid assessment of field erosion and sediment transport pathways in cultivated catchments after heavy rainfall events
Identifieur interne : 000F36 ( Istex/Corpus ); précédent : 000F35; suivant : 000F37Rapid assessment of field erosion and sediment transport pathways in cultivated catchments after heavy rainfall events
Auteurs : P. M. Van Dijk ; A. Auzet ; M. LemmelSource :
- Earth Surface Processes and Landforms [ 0197-9337 ] ; 2005-02.
English descriptors
Abstract
This paper explores a scale‐adapted erosion mapping method which aims at a rapid assessment of field erosion and sediment transport pathways in catchments up to several square kilometres and compares the results with the output of a well‐known erosion model (LISEM). The mapping method is based on an event‐defined classification scheme of erosion intensity (zero, weak, moderate and strong) that is applied to arable fields, in combination with incision measurements of erosion features for each erosion intensity class on a small sample of fields. Sediment deposition is classified on the basis of quantity indicators and abundance. In addition, relevant conditions and erosion factors are determined for each field. The method was applied to an agricultural catchment (4·2 km2) in the Sundgau (Alsace), after a short but violent thunderstorm in May 2001, to illustrate its potential use and its limitations. The rainfall event led to strong erosion on the arable fields and a muddy flow that caused significant damage in the built‐up area. On the basis of the analyses of the incision measurements in combination with the mapping of erosion intensity classes, total erosion for the catchment was estimated as 15 000 t (an average of about 36 t[sol ]ha). Sediment deposition was found to occur in three major locations: (1) in thalwegs at the interface between maize and downslope winter wheat fields, (2) in downslope headlands where the flow direction suddenly changed due to oriented tillage structures in the perpendicular direction, and (3) the lowest corners of fields which collect all the runoff from the field. Preliminary data analyses suggest that erosion intensity is related to field size and[sol ]or tillage direction and to slope morphology. Model output (LISEM) appeared to depend more strongly on slope gradient than the results obtained with the mapping method. The method yields a database, which can be used as a foundation for conservation strategies in small regions with similar land use and geomorphology. The mapping and modelling methods are compared, and their complementary aspects are highlighted. Copyright © 2005 John Wiley & Sons, Ltd.
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DOI: 10.1002/esp.1182
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ISTEX:E4BC178F8454E0ADC92E6E8C2D07B408C1225D84Le document en format XML
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The mapping method is based on an event‐defined classification scheme of erosion intensity (zero, weak, moderate and strong) that is applied to arable fields, in combination with incision measurements of erosion features for each erosion intensity class on a small sample of fields. Sediment deposition is classified on the basis of quantity indicators and abundance. In addition, relevant conditions and erosion factors are determined for each field. The method was applied to an agricultural catchment (4·2 km2) in the Sundgau (Alsace), after a short but violent thunderstorm in May 2001, to illustrate its potential use and its limitations. The rainfall event led to strong erosion on the arable fields and a muddy flow that caused significant damage in the built‐up area. On the basis of the analyses of the incision measurements in combination with the mapping of erosion intensity classes, total erosion for the catchment was estimated as 15 000 t (an average of about 36 t[sol ]ha). Sediment deposition was found to occur in three major locations: (1) in thalwegs at the interface between maize and downslope winter wheat fields, (2) in downslope headlands where the flow direction suddenly changed due to oriented tillage structures in the perpendicular direction, and (3) the lowest corners of fields which collect all the runoff from the field. Preliminary data analyses suggest that erosion intensity is related to field size and[sol ]or tillage direction and to slope morphology. Model output (LISEM) appeared to depend more strongly on slope gradient than the results obtained with the mapping method. The method yields a database, which can be used as a foundation for conservation strategies in small regions with similar land use and geomorphology. The mapping and modelling methods are compared, and their complementary aspects are highlighted. Copyright © 2005 John Wiley & Sons, Ltd.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>P. 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The mapping method is based on an event‐defined classification scheme of erosion intensity (zero, weak, moderate and strong) that is applied to arable fields, in combination with incision measurements of erosion features for each erosion intensity class on a small sample of fields. Sediment deposition is classified on the basis of quantity indicators and abundance. In addition, relevant conditions and erosion factors are determined for each field. The method was applied to an agricultural catchment (4·2 km2) in the Sundgau (Alsace), after a short but violent thunderstorm in May 2001, to illustrate its potential use and its limitations. The rainfall event led to strong erosion on the arable fields and a muddy flow that caused significant damage in the built‐up area. On the basis of the analyses of the incision measurements in combination with the mapping of erosion intensity classes, total erosion for the catchment was estimated as 15 000 t (an average of about 36 t[sol ]ha). Sediment deposition was found to occur in three major locations: (1) in thalwegs at the interface between maize and downslope winter wheat fields, (2) in downslope headlands where the flow direction suddenly changed due to oriented tillage structures in the perpendicular direction, and (3) the lowest corners of fields which collect all the runoff from the field. Preliminary data analyses suggest that erosion intensity is related to field size and[sol ]or tillage direction and to slope morphology. Model output (LISEM) appeared to depend more strongly on slope gradient than the results obtained with the mapping method. The method yields a database, which can be used as a foundation for conservation strategies in small regions with similar land use and geomorphology. The mapping and modelling methods are compared, and their complementary aspects are highlighted. 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The mapping method is based on an event‐defined classification scheme of erosion intensity (zero, weak, moderate and strong) that is applied to arable fields, in combination with incision measurements of erosion features for each erosion intensity class on a small sample of fields. Sediment deposition is classified on the basis of quantity indicators and abundance. In addition, relevant conditions and erosion factors are determined for each field. The method was applied to an agricultural catchment (4·2 km2) in the Sundgau (Alsace), after a short but violent thunderstorm in May 2001, to illustrate its potential use and its limitations. The rainfall event led to strong erosion on the arable fields and a muddy flow that caused significant damage in the built‐up area. On the basis of the analyses of the incision measurements in combination with the mapping of erosion intensity classes, total erosion for the catchment was estimated as 15 000 t (an average of about 36 t[sol ]ha). Sediment deposition was found to occur in three major locations: (1) in thalwegs at the interface between maize and downslope winter wheat fields, (2) in downslope headlands where the flow direction suddenly changed due to oriented tillage structures in the perpendicular direction, and (3) the lowest corners of fields which collect all the runoff from the field. Preliminary data analyses suggest that erosion intensity is related to field size and[sol ]or tillage direction and to slope morphology. Model output (LISEM) appeared to depend more strongly on slope gradient than the results obtained with the mapping method. The method yields a database, which can be used as a foundation for conservation strategies in small regions with similar land use and geomorphology. The mapping and modelling methods are compared, and their complementary aspects are highlighted. 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M.</givenNames><familyName>van Dijk</familyName></personName><contactDetails><email normalForm="araa@bas-rhin.chambagri.fr">araa@bas‐rhin.chambagri.fr</email></contactDetails></creator><creator xml:id="au2" creatorRole="author" affiliationRef="#af1"><personName><givenNames>A.‐V.</givenNames><familyName>Auzet</familyName></personName></creator><creator xml:id="au3" creatorRole="author" affiliationRef="#af1"><personName><givenNames>M.</givenNames><familyName>Lemmel</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="af1" countryCode="FR" type="organization"><unparsedAffiliation>Institut de Mécanique des Fluides et des Solides (IMFS), UMR 7507, ULP‐CNRS‐ENGEES, 3 rue de l'Argonne, F‐67083 Strasbourg Cedex, France</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en" type="author"><keyword xml:id="kwd1">erosion mapping</keyword><keyword xml:id="kwd2">muddy flow</keyword><keyword xml:id="kwd3">runoff routing</keyword><keyword xml:id="kwd4">erosion model</keyword><keyword xml:id="kwd5">soil and water conservation</keyword></keywordGroup><fundingInfo><fundingAgency>European Commission</fundingAgency><fundingNumber>EVK1‐TC‐2000‐50001</fundingNumber></fundingInfo><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>This paper explores a scale‐adapted erosion mapping method which aims at a rapid assessment of field erosion and sediment transport pathways in catchments up to several square kilometres and compares the results with the output of a well‐known erosion model (LISEM). The mapping method is based on an event‐defined classification scheme of erosion intensity (zero, weak, moderate and strong) that is applied to arable fields, in combination with incision measurements of erosion features for each erosion intensity class on a small sample of fields. Sediment deposition is classified on the basis of quantity indicators and abundance. In addition, relevant conditions and erosion factors are determined for each field.</p><p>The method was applied to an agricultural catchment (4·2 km<sup>2</sup>) in the Sundgau (Alsace), after a short but violent thunderstorm in May 2001, to illustrate its potential use and its limitations. The rainfall event led to strong erosion on the arable fields and a muddy flow that caused significant damage in the built‐up area. On the basis of the analyses of the incision measurements in combination with the mapping of erosion intensity classes, total erosion for the catchment was estimated as 15 000 t (an average of about 36 t[sol ]ha). Sediment deposition was found to occur in three major locations: (1) in thalwegs at the interface between maize and downslope winter wheat fields, (2) in downslope headlands where the flow direction suddenly changed due to oriented tillage structures in the perpendicular direction, and (3) the lowest corners of fields which collect all the runoff from the field. Preliminary data analyses suggest that erosion intensity is related to field size and[sol ]or tillage direction and to slope morphology. Model output (LISEM) appeared to depend more strongly on slope gradient than the results obtained with the mapping method.</p><p>The method yields a database, which can be used as a foundation for conservation strategies in small regions with similar land use and geomorphology. The mapping and modelling methods are compared, and their complementary aspects are highlighted. Copyright © 2005 John Wiley & Sons, Ltd.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Rapid assessment of field erosion and sediment transport pathways in cultivated catchments after heavy rainfall events</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Assessment of field erosion and sediment transport</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Rapid assessment of field erosion and sediment transport pathways in cultivated catchments after heavy rainfall events</title></titleInfo><name type="personal"><namePart type="given">P. M.</namePart><namePart type="family">van Dijk</namePart><affiliation>Institut de Mécanique des Fluides et des Solides (IMFS), UMR 7507, ULP‐CNRS‐ENGEES, 3 rue de l'Argonne, F‐67083 Strasbourg Cedex, France</affiliation><affiliation>Association pour la Relance Agronomique en Alsace (ARAA), Maison de l'Agriculture, 2, rue de Rome, BP 30022 Schiltigheim, 67013 Strasbourg Cedex, France.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A.‐V.</namePart><namePart type="family">Auzet</namePart><affiliation>Institut de Mécanique des Fluides et des Solides (IMFS), UMR 7507, ULP‐CNRS‐ENGEES, 3 rue de l'Argonne, F‐67083 Strasbourg Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.</namePart><namePart type="family">Lemmel</namePart><affiliation>Institut de Mécanique des Fluides et des Solides (IMFS), UMR 7507, ULP‐CNRS‐ENGEES, 3 rue de l'Argonne, F‐67083 Strasbourg Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>John Wiley & Sons, Ltd.</publisher><place><placeTerm type="text">Chichester, UK</placeTerm></place><dateIssued encoding="w3cdtf">2005-02</dateIssued><dateCaptured encoding="w3cdtf">2003-03-30</dateCaptured><dateValid encoding="w3cdtf">2004-03-24</dateValid><copyrightDate encoding="w3cdtf">2005</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">11</extent><extent unit="tables">3</extent><extent unit="references">13</extent></physicalDescription><abstract lang="en">This paper explores a scale‐adapted erosion mapping method which aims at a rapid assessment of field erosion and sediment transport pathways in catchments up to several square kilometres and compares the results with the output of a well‐known erosion model (LISEM). The mapping method is based on an event‐defined classification scheme of erosion intensity (zero, weak, moderate and strong) that is applied to arable fields, in combination with incision measurements of erosion features for each erosion intensity class on a small sample of fields. Sediment deposition is classified on the basis of quantity indicators and abundance. In addition, relevant conditions and erosion factors are determined for each field. The method was applied to an agricultural catchment (4·2 km2) in the Sundgau (Alsace), after a short but violent thunderstorm in May 2001, to illustrate its potential use and its limitations. The rainfall event led to strong erosion on the arable fields and a muddy flow that caused significant damage in the built‐up area. On the basis of the analyses of the incision measurements in combination with the mapping of erosion intensity classes, total erosion for the catchment was estimated as 15 000 t (an average of about 36 t[sol ]ha). Sediment deposition was found to occur in three major locations: (1) in thalwegs at the interface between maize and downslope winter wheat fields, (2) in downslope headlands where the flow direction suddenly changed due to oriented tillage structures in the perpendicular direction, and (3) the lowest corners of fields which collect all the runoff from the field. Preliminary data analyses suggest that erosion intensity is related to field size and[sol ]or tillage direction and to slope morphology. Model output (LISEM) appeared to depend more strongly on slope gradient than the results obtained with the mapping method. The method yields a database, which can be used as a foundation for conservation strategies in small regions with similar land use and geomorphology. The mapping and modelling methods are compared, and their complementary aspects are highlighted. Copyright © 2005 John Wiley & Sons, Ltd.</abstract><note type="funding">European Commission - No. EVK1‐TC‐2000‐50001; </note><subject lang="en"><genre>keywords</genre><topic>erosion mapping</topic><topic>muddy flow</topic><topic>runoff routing</topic><topic>erosion model</topic><topic>soil and water conservation</topic></subject><relatedItem type="host"><titleInfo><title>Earth Surface Processes and Landforms</title><subTitle>The Journal of the British Geomorphological Research Group</subTitle></titleInfo><titleInfo type="abbreviated"><title>Earth Surf. Process. Landforms</title></titleInfo><name type="personal"><namePart type="given">Katharina</namePart><namePart type="family">Helming</namePart></name><name type="personal"><namePart type="given">Anne‐Veronique</namePart><namePart type="family">Auzet</namePart></name><name type="personal"><namePart type="given">David</namePart><namePart type="family">Favis‐Mortlock</namePart></name><genre type="journal">journal</genre><subject><genre>article-category</genre><topic>Research Article</topic></subject><identifier type="ISSN">0197-9337</identifier><identifier type="eISSN">1096-9837</identifier><identifier type="DOI">10.1002/(ISSN)1096-9837</identifier><identifier type="PublisherID">ESP</identifier><part><date>2005</date><detail type="title"><title>Soil Erosion Patterns: Evolution, Spatio‐temporal Dynamics and Connectivity</title></detail><detail type="volume"><caption>vol.</caption><number>30</number></detail><detail type="issue"><caption>no.</caption><number>2</number></detail><extent unit="pages"><start>169</start><end>182</end><total>14</total></extent></part></relatedItem><identifier type="istex">E4BC178F8454E0ADC92E6E8C2D07B408C1225D84</identifier><identifier type="DOI">10.1002/esp.1182</identifier><identifier type="ArticleID">ESP1182</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2005 John Wiley & Sons, Ltd.</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>John Wiley & Sons, Ltd.</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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