Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision
Identifieur interne : 000D25 ( Istex/Corpus ); précédent : 000D24; suivant : 000D26Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision
Auteurs : Tal Svoray ; Hila MarkovitchSource :
- Earth Surface Processes and Landforms [ 0197-9337 ] ; 2009-11-30.
English descriptors
Abstract
High‐resolution airphotographs and digital elevation models (DEMs) were used to study areas prone to gully incision in a small agricultural catchment in northern Israel. Data are analyzed to understand better the integrated effect of environmental and human factors on gully incision. The effect of flow accumulation, slope, unpaved roads density and tillage direction on gully width and length is found discontinuous and topography – in the form of the topographic threshold – was found to be the most dominant factor on gully incision in the catchment scale. The topographic threshold coefficients observed in Yehezkel catchment were lower than those found in previous studies, due to the effect of large rainfall events during the early winter season, when the soil in fields is still unprotected by crops. In addition, a survey of previous studies shows that, in cultivated areas, there is relationship between the topographic threshold coefficients a (multiplier) and b (exponent). The influence of unpaved roads and tillage direction on gully incision was also found significant and consistent during the two seasons observed, while the non‐parametric test showed that it added to the prediction in ∼15% of the gullies. Incision points density plot show that of the two parameters, the unpaved roads were found to have greater influence on gully‐head location than tillage direction. Studying the phenomenon on the catchment scale allows better understanding of the effect of spatial variation on gully‐head location. Copyright © 2009 John Wiley & Sons, Ltd.
Url:
DOI: 10.1002/esp.1873
Links to Exploration step
ISTEX:F1510E80F7C2FD3A5506DF190E4167589746312ALe document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision</title>
<author><name sortKey="Svoray, Tal" sort="Svoray, Tal" uniqKey="Svoray T" first="Tal" last="Svoray">Tal Svoray</name>
<affiliation><mods:affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</mods:affiliation>
</affiliation>
<affiliation><mods:affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</mods:affiliation>
</affiliation>
</author>
<author><name sortKey="Markovitch, Hila" sort="Markovitch, Hila" uniqKey="Markovitch H" first="Hila" last="Markovitch">Hila Markovitch</name>
<affiliation><mods:affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</mods:affiliation>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:F1510E80F7C2FD3A5506DF190E4167589746312A</idno>
<date when="2009" year="2009">2009</date>
<idno type="doi">10.1002/esp.1873</idno>
<idno type="url">https://api.istex.fr/document/F1510E80F7C2FD3A5506DF190E4167589746312A/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000D25</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000D25</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision</title>
<author><name sortKey="Svoray, Tal" sort="Svoray, Tal" uniqKey="Svoray T" first="Tal" last="Svoray">Tal Svoray</name>
<affiliation><mods:affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</mods:affiliation>
</affiliation>
<affiliation><mods:affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</mods:affiliation>
</affiliation>
</author>
<author><name sortKey="Markovitch, Hila" sort="Markovitch, Hila" uniqKey="Markovitch H" first="Hila" last="Markovitch">Hila Markovitch</name>
<affiliation><mods:affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</mods:affiliation>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Earth Surface Processes and Landforms</title>
<title level="j" type="sub">The Journal of the British Geomorphological Research Group</title>
<title level="j" type="abbrev">Earth Surf. Process. Landforms</title>
<idno type="ISSN">0197-9337</idno>
<idno type="eISSN">1096-9837</idno>
<imprint><publisher>John Wiley & Sons, Ltd.</publisher>
<pubPlace>Chichester, UK</pubPlace>
<date type="published" when="2009-11-30">2009-11-30</date>
<biblScope unit="volume">34</biblScope>
<biblScope unit="issue">14</biblScope>
<biblScope unit="page" from="1970">1970</biblScope>
<biblScope unit="page" to="1984">1984</biblScope>
</imprint>
<idno type="ISSN">0197-9337</idno>
</series>
<idno type="istex">F1510E80F7C2FD3A5506DF190E4167589746312A</idno>
<idno type="DOI">10.1002/esp.1873</idno>
<idno type="ArticleID">ESP1873</idno>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0197-9337</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>GIS</term>
<term>ephemeral gullies</term>
<term>gully initiation</term>
<term>soil erosion</term>
<term>topographic threshold</term>
</keywords>
</textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">High‐resolution airphotographs and digital elevation models (DEMs) were used to study areas prone to gully incision in a small agricultural catchment in northern Israel. Data are analyzed to understand better the integrated effect of environmental and human factors on gully incision. The effect of flow accumulation, slope, unpaved roads density and tillage direction on gully width and length is found discontinuous and topography – in the form of the topographic threshold – was found to be the most dominant factor on gully incision in the catchment scale. The topographic threshold coefficients observed in Yehezkel catchment were lower than those found in previous studies, due to the effect of large rainfall events during the early winter season, when the soil in fields is still unprotected by crops. In addition, a survey of previous studies shows that, in cultivated areas, there is relationship between the topographic threshold coefficients a (multiplier) and b (exponent). The influence of unpaved roads and tillage direction on gully incision was also found significant and consistent during the two seasons observed, while the non‐parametric test showed that it added to the prediction in ∼15% of the gullies. Incision points density plot show that of the two parameters, the unpaved roads were found to have greater influence on gully‐head location than tillage direction. Studying the phenomenon on the catchment scale allows better understanding of the effect of spatial variation on gully‐head location. Copyright © 2009 John Wiley & Sons, Ltd.</div>
</front>
</TEI>
<istex><corpusName>wiley</corpusName>
<author><json:item><name>Tal Svoray</name>
<affiliations><json:string>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</json:string>
<json:string>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</json:string>
</affiliations>
</json:item>
<json:item><name>Hila Markovitch</name>
<affiliations><json:string>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</json:string>
</affiliations>
</json:item>
</author>
<subject><json:item><lang><json:string>eng</json:string>
</lang>
<value>ephemeral gullies</value>
</json:item>
<json:item><lang><json:string>eng</json:string>
</lang>
<value>GIS</value>
</json:item>
<json:item><lang><json:string>eng</json:string>
</lang>
<value>gully initiation</value>
</json:item>
<json:item><lang><json:string>eng</json:string>
</lang>
<value>soil erosion</value>
</json:item>
<json:item><lang><json:string>eng</json:string>
</lang>
<value>topographic threshold</value>
</json:item>
</subject>
<articleId><json:string>ESP1873</json:string>
</articleId>
<language><json:string>eng</json:string>
</language>
<originalGenre><json:string>article</json:string>
</originalGenre>
<abstract>High‐resolution airphotographs and digital elevation models (DEMs) were used to study areas prone to gully incision in a small agricultural catchment in northern Israel. Data are analyzed to understand better the integrated effect of environmental and human factors on gully incision. The effect of flow accumulation, slope, unpaved roads density and tillage direction on gully width and length is found discontinuous and topography – in the form of the topographic threshold – was found to be the most dominant factor on gully incision in the catchment scale. The topographic threshold coefficients observed in Yehezkel catchment were lower than those found in previous studies, due to the effect of large rainfall events during the early winter season, when the soil in fields is still unprotected by crops. In addition, a survey of previous studies shows that, in cultivated areas, there is relationship between the topographic threshold coefficients a (multiplier) and b (exponent). The influence of unpaved roads and tillage direction on gully incision was also found significant and consistent during the two seasons observed, while the non‐parametric test showed that it added to the prediction in ∼15% of the gullies. Incision points density plot show that of the two parameters, the unpaved roads were found to have greater influence on gully‐head location than tillage direction. Studying the phenomenon on the catchment scale allows better understanding of the effect of spatial variation on gully‐head location. Copyright © 2009 John Wiley & Sons, Ltd.</abstract>
<qualityIndicators><score>7.892</score>
<pdfVersion>1.3</pdfVersion>
<pdfPageSize>595 x 842 pts (A4)</pdfPageSize>
<refBibsNative>true</refBibsNative>
<abstractCharCount>1564</abstractCharCount>
<pdfWordCount>8783</pdfWordCount>
<pdfCharCount>53978</pdfCharCount>
<pdfPageCount>15</pdfPageCount>
<abstractWordCount>241</abstractWordCount>
</qualityIndicators>
<title>Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision</title>
<genre><json:string>article</json:string>
</genre>
<host><volume>34</volume>
<publisherId><json:string>ESP</json:string>
</publisherId>
<pages><total>15</total>
<last>1984</last>
<first>1970</first>
</pages>
<issn><json:string>0197-9337</json:string>
</issn>
<issue>14</issue>
<subject><json:item><value>Research Article</value>
</json:item>
</subject>
<genre><json:string>journal</json:string>
</genre>
<language><json:string>unknown</json:string>
</language>
<eissn><json:string>1096-9837</json:string>
</eissn>
<title>Earth Surface Processes and Landforms</title>
<doi><json:string>10.1002/(ISSN)1096-9837</json:string>
</doi>
</host>
<categories><wos><json:string>science</json:string>
<json:string>geosciences, multidisciplinary</json:string>
<json:string>geography, physical</json:string>
</wos>
<scienceMetrix><json:string>economic & social sciences</json:string>
<json:string>social sciences</json:string>
<json:string>geography</json:string>
</scienceMetrix>
</categories>
<publicationDate>2009</publicationDate>
<copyrightDate>2009</copyrightDate>
<doi><json:string>10.1002/esp.1873</json:string>
</doi>
<id>F1510E80F7C2FD3A5506DF190E4167589746312A</id>
<score>0.036044475</score>
<fulltext><json:item><extension>pdf</extension>
<original>true</original>
<mimetype>application/pdf</mimetype>
<uri>https://api.istex.fr/document/F1510E80F7C2FD3A5506DF190E4167589746312A/fulltext/pdf</uri>
</json:item>
<json:item><extension>zip</extension>
<original>false</original>
<mimetype>application/zip</mimetype>
<uri>https://api.istex.fr/document/F1510E80F7C2FD3A5506DF190E4167589746312A/fulltext/zip</uri>
</json:item>
<istex:fulltextTEI uri="https://api.istex.fr/document/F1510E80F7C2FD3A5506DF190E4167589746312A/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision</title>
</titleStmt>
<publicationStmt><authority>ISTEX</authority>
<publisher>John Wiley & Sons, Ltd.</publisher>
<pubPlace>Chichester, UK</pubPlace>
<availability><p>Copyright © 2009 John Wiley & Sons, Ltd.</p>
</availability>
<date>2009</date>
</publicationStmt>
<sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision</title>
<author xml:id="author-1"><persName><forename type="first">Tal</forename>
<surname>Svoray</surname>
</persName>
<affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</affiliation>
<affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</affiliation>
</author>
<author xml:id="author-2"><persName><forename type="first">Hila</forename>
<surname>Markovitch</surname>
</persName>
<affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</affiliation>
</author>
</analytic>
<monogr><title level="j">Earth Surface Processes and Landforms</title>
<title level="j" type="sub">The Journal of the British Geomorphological Research Group</title>
<title level="j" type="abbrev">Earth Surf. Process. Landforms</title>
<idno type="pISSN">0197-9337</idno>
<idno type="eISSN">1096-9837</idno>
<idno type="DOI">10.1002/(ISSN)1096-9837</idno>
<imprint><publisher>John Wiley & Sons, Ltd.</publisher>
<pubPlace>Chichester, UK</pubPlace>
<date type="published" when="2009-11-30"></date>
<biblScope unit="volume">34</biblScope>
<biblScope unit="issue">14</biblScope>
<biblScope unit="page" from="1970">1970</biblScope>
<biblScope unit="page" to="1984">1984</biblScope>
</imprint>
</monogr>
<idno type="istex">F1510E80F7C2FD3A5506DF190E4167589746312A</idno>
<idno type="DOI">10.1002/esp.1873</idno>
<idno type="ArticleID">ESP1873</idno>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><creation><date>2009</date>
</creation>
<langUsage><language ident="en">en</language>
</langUsage>
<abstract xml:lang="en"><p>High‐resolution airphotographs and digital elevation models (DEMs) were used to study areas prone to gully incision in a small agricultural catchment in northern Israel. Data are analyzed to understand better the integrated effect of environmental and human factors on gully incision. The effect of flow accumulation, slope, unpaved roads density and tillage direction on gully width and length is found discontinuous and topography – in the form of the topographic threshold – was found to be the most dominant factor on gully incision in the catchment scale. The topographic threshold coefficients observed in Yehezkel catchment were lower than those found in previous studies, due to the effect of large rainfall events during the early winter season, when the soil in fields is still unprotected by crops. In addition, a survey of previous studies shows that, in cultivated areas, there is relationship between the topographic threshold coefficients a (multiplier) and b (exponent). The influence of unpaved roads and tillage direction on gully incision was also found significant and consistent during the two seasons observed, while the non‐parametric test showed that it added to the prediction in ∼15% of the gullies. Incision points density plot show that of the two parameters, the unpaved roads were found to have greater influence on gully‐head location than tillage direction. Studying the phenomenon on the catchment scale allows better understanding of the effect of spatial variation on gully‐head location. Copyright © 2009 John Wiley & Sons, Ltd.</p>
</abstract>
<textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head>
<item><term>ephemeral gullies</term>
</item>
<item><term>GIS</term>
</item>
<item><term>gully initiation</term>
</item>
<item><term>soil erosion</term>
</item>
<item><term>topographic threshold</term>
</item>
</list>
</keywords>
</textClass>
<textClass><keywords scheme="Journal Subject"><list><head>article-category</head>
<item><term>Research Article</term>
</item>
</list>
</keywords>
</textClass>
</profileDesc>
<revisionDesc><change when="2008-04-29">Received</change>
<change when="2009-06-09">Registration</change>
<change when="2009-11-30">Published</change>
</revisionDesc>
</teiHeader>
</istex:fulltextTEI>
<json:item><extension>txt</extension>
<original>false</original>
<mimetype>text/plain</mimetype>
<uri>https://api.istex.fr/document/F1510E80F7C2FD3A5506DF190E4167589746312A/fulltext/txt</uri>
</json:item>
</fulltext>
<metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration>
<istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>John Wiley & Sons, Ltd.</publisherName>
<publisherLoc>Chichester, UK</publisherLoc>
</publisherInfo>
<doi registered="yes">10.1002/(ISSN)1096-9837</doi>
<issn type="print">0197-9337</issn>
<issn type="electronic">1096-9837</issn>
<idGroup><id type="product" value="ESP"></id>
</idGroup>
<titleGroup><title type="main" xml:lang="en" sort="EARTH SURFACE PROCESSES AND LANDFORMS">Earth Surface Processes and Landforms</title>
<title type="subtitle">The Journal of the British Geomorphological Research Group</title>
<title type="short">Earth Surf. Process. Landforms</title>
</titleGroup>
</publicationMeta>
<publicationMeta level="part" position="140"><doi origin="wiley" registered="yes">10.1002/esp.v34:14</doi>
<titleGroup><title type="specialIssueTitle">Gully Erosion Processes: Monitoring and Modelling</title>
</titleGroup>
<numberingGroup><numbering type="journalVolume" number="34">34</numbering>
<numbering type="journalIssue">14</numbering>
</numberingGroup>
<coverDate startDate="2009-11-30">30 November 2009</coverDate>
</publicationMeta>
<publicationMeta level="unit" type="article" position="13" status="forIssue"><doi origin="wiley" registered="yes">10.1002/esp.1873</doi>
<idGroup><id type="unit" value="ESP1873"></id>
</idGroup>
<countGroup><count type="pageTotal" number="15"></count>
</countGroup>
<titleGroup><title type="articleCategory">Research Article</title>
<title type="tocHeading1">Research Articles</title>
</titleGroup>
<copyright ownership="publisher">Copyright © 2009 John Wiley & Sons, Ltd.</copyright>
<eventGroup><event type="manuscriptReceived" date="2008-04-29"></event>
<event type="manuscriptRevised" date="2009-03-31"></event>
<event type="manuscriptAccepted" date="2009-06-09"></event>
<event type="firstOnline" date="2009-10-28"></event>
<event type="publishedOnlineFinalForm" date="2009-10-28"></event>
<event type="xmlConverted" agent="Converter:JWSART34_TO_WML3G version:2.3.6 mode:FullText source:HeaderRef result:HeaderRef" date="2010-04-22"></event>
<event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-25"></event>
<event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-17"></event>
</eventGroup>
<numberingGroup><numbering type="pageFirst">1970</numbering>
<numbering type="pageLast">1984</numbering>
</numberingGroup>
<correspondenceTo>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</correspondenceTo>
<linkGroup><link type="toTypesetVersion" href="file:ESP.ESP1873.pdf"></link>
</linkGroup>
</publicationMeta>
<contentMeta><countGroup><count type="figureTotal" number="11"></count>
<count type="tableTotal" number="5"></count>
<count type="referenceTotal" number="63"></count>
</countGroup>
<titleGroup><title type="main" xml:lang="en">Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision</title>
<title type="short" xml:lang="en">EFFECT OF TOPOGRAPHY, TILLAGE DIRECTION AND UNPAVED ROADS ON EPHEMERAL GULLY INCISION</title>
</titleGroup>
<creators><creator xml:id="au1" creatorRole="author" affiliationRef="#af1" corresponding="yes"><personName><givenNames>Tal</givenNames>
<familyName>Svoray</familyName>
</personName>
<contactDetails><email>tsvoray@bgu.ac.il</email>
</contactDetails>
</creator>
<creator xml:id="au2" creatorRole="author" affiliationRef="#af1"><personName><givenNames>Hila</givenNames>
<familyName>Markovitch</familyName>
</personName>
</creator>
</creators>
<affiliationGroup><affiliation xml:id="af1" countryCode="IL" type="organization"><unparsedAffiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</unparsedAffiliation>
</affiliation>
</affiliationGroup>
<keywordGroup xml:lang="en" type="author"><keyword xml:id="kwd1">ephemeral gullies</keyword>
<keyword xml:id="kwd2">GIS</keyword>
<keyword xml:id="kwd3">gully initiation</keyword>
<keyword xml:id="kwd4">soil erosion</keyword>
<keyword xml:id="kwd5">topographic threshold</keyword>
</keywordGroup>
<abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title>
<p>High‐resolution airphotographs and digital elevation models (DEMs) were used to study areas prone to gully incision in a small agricultural catchment in northern Israel. Data are analyzed to understand better the integrated effect of environmental and human factors on gully incision. The effect of flow accumulation, slope, unpaved roads density and tillage direction on gully width and length is found discontinuous and topography – in the form of the topographic threshold – was found to be the most dominant factor on gully incision in the catchment scale. The topographic threshold coefficients observed in Yehezkel catchment were lower than those found in previous studies, due to the effect of large rainfall events during the early winter season, when the soil in fields is still unprotected by crops. In addition, a survey of previous studies shows that, in cultivated areas, there is relationship between the topographic threshold coefficients <i>a</i>
(multiplier) and <i>b</i>
(exponent). The influence of unpaved roads and tillage direction on gully incision was also found significant and consistent during the two seasons observed, while the non‐parametric test showed that it added to the prediction in ∼15% of the gullies. Incision points density plot show that of the two parameters, the unpaved roads were found to have greater influence on gully‐head location than tillage direction. Studying the phenomenon on the catchment scale allows better understanding of the effect of spatial variation on gully‐head location. Copyright © 2009 John Wiley & Sons, Ltd.</p>
</abstract>
</abstractGroup>
</contentMeta>
</header>
</component>
</istex:document>
</istex:metadataXml>
<mods version="3.6"><titleInfo lang="en"><title>Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision</title>
</titleInfo>
<titleInfo type="abbreviated" lang="en"><title>EFFECT OF TOPOGRAPHY, TILLAGE DIRECTION AND UNPAVED ROADS ON EPHEMERAL GULLY INCISION</title>
</titleInfo>
<titleInfo type="alternative" contentType="CDATA" lang="en"><title>Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision</title>
</titleInfo>
<name type="personal"><namePart type="given">Tal</namePart>
<namePart type="family">Svoray</namePart>
<affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</affiliation>
<affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</affiliation>
<role><roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal"><namePart type="given">Hila</namePart>
<namePart type="family">Markovitch</namePart>
<affiliation>Department of Geography and Environmental Development, Ben‐Gurion University of the Negev, Israel</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">2009-11-30</dateIssued>
<dateCaptured encoding="w3cdtf">2008-04-29</dateCaptured>
<dateValid encoding="w3cdtf">2009-06-09</dateValid>
<copyrightDate encoding="w3cdtf">2009</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">5</extent>
<extent unit="references">63</extent>
</physicalDescription>
<abstract lang="en">High‐resolution airphotographs and digital elevation models (DEMs) were used to study areas prone to gully incision in a small agricultural catchment in northern Israel. Data are analyzed to understand better the integrated effect of environmental and human factors on gully incision. The effect of flow accumulation, slope, unpaved roads density and tillage direction on gully width and length is found discontinuous and topography – in the form of the topographic threshold – was found to be the most dominant factor on gully incision in the catchment scale. The topographic threshold coefficients observed in Yehezkel catchment were lower than those found in previous studies, due to the effect of large rainfall events during the early winter season, when the soil in fields is still unprotected by crops. In addition, a survey of previous studies shows that, in cultivated areas, there is relationship between the topographic threshold coefficients a (multiplier) and b (exponent). The influence of unpaved roads and tillage direction on gully incision was also found significant and consistent during the two seasons observed, while the non‐parametric test showed that it added to the prediction in ∼15% of the gullies. Incision points density plot show that of the two parameters, the unpaved roads were found to have greater influence on gully‐head location than tillage direction. Studying the phenomenon on the catchment scale allows better understanding of the effect of spatial variation on gully‐head location. Copyright © 2009 John Wiley & Sons, Ltd.</abstract>
<subject lang="en"><genre>keywords</genre>
<topic>ephemeral gullies</topic>
<topic>GIS</topic>
<topic>gully initiation</topic>
<topic>soil erosion</topic>
<topic>topographic threshold</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>
<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>2009</date>
<detail type="title"><title>Gully Erosion Processes: Monitoring and Modelling</title>
</detail>
<detail type="volume"><caption>vol.</caption>
<number>34</number>
</detail>
<detail type="issue"><caption>no.</caption>
<number>14</number>
</detail>
<extent unit="pages"><start>1970</start>
<end>1984</end>
<total>15</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">F1510E80F7C2FD3A5506DF190E4167589746312A</identifier>
<identifier type="DOI">10.1002/esp.1873</identifier>
<identifier type="ArticleID">ESP1873</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 2009 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)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Agronomie/explor/SisAgriV1/Data/Istex/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000D25 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Istex/Corpus/biblio.hfd -nk 000D25 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Agronomie |area= SisAgriV1 |flux= Istex |étape= Corpus |type= RBID |clé= ISTEX:F1510E80F7C2FD3A5506DF190E4167589746312A |texte= Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision }}
![]() | This area was generated with Dilib version V0.6.28. | ![]() |