Knowledge Based Soil Attribute Mapping In GIS: The Expector Method
Identifieur interne : 000F97 ( Main/Exploration ); précédent : 000F96; suivant : 000F98Knowledge Based Soil Attribute Mapping In GIS: The Expector Method
Auteurs : Robert J. Corner ; Robert J. Hickey ; Simon E. Cook [Colombie]Source :
- Transactions in GIS [ 1361-1682 ] ; 2002-10.
Abstract
EXPECTOR is a method of combining data and ‘expert’ knowledge within a Geographic Information System to provide information on the occurrence of spatially distributed attributes. It was developed to predict soil property values from spatially variable input data. Although initially developed to provide soil surveyors with a quantitative soil mapping method, it also has applications in land evaluation, land capability assessment, geological mapping and in precision agriculture. It operates on the basis that the state of a particular property, which may be difficult to measure directly, can be inferred from other (more measurable) entities and a knowledge of their inter–relationships. The method has been implemented as a stand–alone ‘Knowledge Editing’ module for the PC that can be linked to raster GIS packages. This paper describes the basis of the method and illustrates its use with an example describing the production of a surface clay content map for a small catchment in south–western Western Australia.
Url:
DOI: 10.1111/1467-9671.00119
Affiliations:
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Cook</name><affiliation wicri:level="1"><country xml:lang="fr">Colombie</country><wicri:regionArea>Centro Internacional de Agricultura Tropical (CIAT), Cali</wicri:regionArea><wicri:noRegion>Cali</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Transactions in GIS</title><idno type="ISSN">1361-1682</idno><idno type="eISSN">1467-9671</idno><imprint><publisher>Blackwell Publishers Ltd</publisher><pubPlace>Oxford, UK and Boston, USA</pubPlace><date type="published" when="2002-10">2002-10</date><biblScope unit="volume">6</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="383">383</biblScope><biblScope unit="page" to="402">402</biblScope></imprint><idno type="ISSN">1361-1682</idno></series><idno type="istex">576877D4A2FB4A9C7697E5237732C16033860C49</idno><idno type="DOI">10.1111/1467-9671.00119</idno><idno type="ArticleID">TGIS119</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1361-1682</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">EXPECTOR is a method of combining data and ‘expert’ knowledge within a Geographic Information System to provide information on the occurrence of spatially distributed attributes. It was developed to predict soil property values from spatially variable input data. Although initially developed to provide soil surveyors with a quantitative soil mapping method, it also has applications in land evaluation, land capability assessment, geological mapping and in precision agriculture. It operates on the basis that the state of a particular property, which may be difficult to measure directly, can be inferred from other (more measurable) entities and a knowledge of their inter–relationships. The method has been implemented as a stand–alone ‘Knowledge Editing’ module for the PC that can be linked to raster GIS packages. This paper describes the basis of the method and illustrates its use with an example describing the production of a surface clay content map for a small catchment in south–western Western Australia.</div></front></TEI><affiliations><list><country><li>Colombie</li></country></list><tree><noCountry><name sortKey="Corner, Robert J" sort="Corner, Robert J" uniqKey="Corner R" first="Robert J." last="Corner">Robert J. Corner</name><name sortKey="Hickey, Robert J" sort="Hickey, Robert J" uniqKey="Hickey R" first="Robert J." last="Hickey">Robert J. Hickey</name></noCountry><country name="Colombie"><noRegion><name sortKey="Cook, Simon E" sort="Cook, Simon E" uniqKey="Cook S" first="Simon E." last="Cook">Simon E. Cook</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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