%0 Book Section %9 OS CH : Chapitres d'ouvrages scientifiques %A Agurgo, F.B. %T Remote sensing and GIS for land degradation assessment and land management in Ghana %B Surveillance des sols dans l'environnement par télédétection et systèmes d'information géographiques = Monitoring soils in the environment with remote sensing and GIS %C Paris %D 1996 %E Escadafal, Richard %E Mulders, M.A. %E Thiombiano, L. %L fdi:010008430 %G ENG %I ORSTOM %@ 2-7099-1331-3 %K DEGRADATION DU SOL ; EVALUATION ; GESTION DE L'ENVIRONNEMENT ; TELEDETECTION SPATIALE ; SATELLITE LANDSAT ; SYSTEME D'INFORMATION GEOGRAPHIQUE ; PHOTOINTERPRETATION %K GHANA %P 517-522 %U https://www.documentation.ird.fr/hor/fdi:010008430 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/colloques2/010008430.pdf %W Horizon (IRD) %X Combined with ground observations, remote sensing and GIS could greatly enhance the inventory of soils and land cover over large areas by providing data of sufficient quality for large scale projects. This paper seeks to demonstrate how these technologies have been successfully used in Ghana to assess degraded lands within the Nation's Forest Reserves. Landsat TM bands 4,5,3 (R,G,B) are combined with digital maps to separate forest from non-forest. Degraded portions of the forest are then delineated and their areas digitally computed. These areas are then validated through ground checks to provide data for reforestation programs. (Résumé d'auteur) %S Colloques et Séminaires %B Surveillance des Sols dans l'Environnement par Télédétection et Systèmes d'Information Géographiques : Symposium International AISS (Groupes de Travail RS : Télédétection et Cartographie des Sols et DM : Carte Internationale Numérique des Sols et des Terrains) = Monitoring Soils in the Environment with Remote Sensing and GIS : ISSS International Symposium (Working Groups RS and DM) %8 1995/02/06-10 %$ 068PEDAPP ; 126TELAPP03