Centre de documentation
scientifique

Mapping of salt-affected soils using TM images / P. Garcia Rodriguez in International Journal of Remote Sensing IJRS, vol 28 n°11-12 (June 2007)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 28 n°11-12 (June 2007) . - pp 2713 - 2722 Titre : Mapping of salt-affected soils using TM images Type de document : Article/Communication Auteurs : P. Garcia Rodriguez, Auteur ; M.E. Perrez Gonzales, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 2713 - 2722 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] Castille-La Manche [Termes IGN] classification dirigée [Termes IGN] déformation de surface [Termes IGN] eau souterraine [Termes IGN] image Landsat-TM [Termes IGN] inondation [Termes IGN] Normalized Difference Vegetation Index [Termes IGN] risque naturel [Termes IGN] sédiment [Termes IGN] sol salin Résumé : (Auteur) Landsat images supply significant information on the different aspects of the physical environment necessary to determine the distribution of salty soils. This work centres on the La Mancha area (Central Spain) which, due to its flat topography, exhibits ideal conditions to show surface and groundwater movement, as well as sediment distribution. Combination of these factors is essential for development. The main goal of this study is to derive information on the distribution of salt-affected soils, as well as the area subject to flood risk. Multitemporal Landsat TM images selected from the 1990s have been used for this purpose. TM images are useful for delineation of mesozoic sediments rich in salts and/or areas with high humidity content. These images have been geo-referenced to the UTM coordinate system and have been digitally enhanced. Principal components, NDVI and supervised classification were computed. Therefore, it is quite possible to predict with a high degree of probability the development of saline soils, but their precise classification is not always possible, owing to the fact that they are usually associated with other soil groups: calcisols, regosols, luvisols and kastanozems. Salt-affected soils have been found to be associated with clayish mesozoic sediments, hollows, flood plain area and subsurface and groundwater movements. Complementary fieldwork is necessary in order to confirm digital values. Copyright Taylor & Francis Numéro de notice : A2007-310 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160600928658 En ligne : https://doi.org/10.1080/01431160600928658 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28673 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-07071	RAB	Revue	Centre de documentation	En réserve L003	Disponible