Resumen: Se analizan las acumulaciones holocenas de época histórica en el sur de la isla de Eubea. Los objetivos del trabajo se centran en la datación de los depósitos que rellenan los valles y se extienden por las llanuras litorales de este sector de Grecia oriental. Igualmente, se establece la génesis de los procesos, resultantes de la actuación humana sobre las laderas entre la epoca clásica griega y romana, en unas condiciones ambientales favorables a la degradación del medio. Los resultados se ponen en relación con otras áreas de Grecia y del Mediterráneo y se discuten las diferentes interpretaciones.Palabras clave: Geoarqueología, Grecia, Holoceno, Yo~~ngerfill.Abstract: The Holocene accumulations of historical age in the south of Eubea Island are analyzed in this work. The aims of the article are centred in the dating of the deposits that infill the valleys and are axtended over the litoral palins of this eastern Greece sector. We establish as well the genesis of processes, resulting of the human activity developed on the taluses between Greek and Roman classical ages, in environmental conditions which favour degradation of the landscape. The results are relationed with other greek and mediterranean areas, and the different interpretations are discussed.
The mapping of the land use in a tropical wet and dry area (East-Mono, Central Togo) is made using remote sensing data, recorded by the satellite SPOT. The negative, multispectral image data set has been transferred into positives by photographical means and afterwards enhanced using the diazo technique. The combination of the different diazo coloured images resulted in a false colour composite, being the basic document for the visual image interpretation. The image analysis, based upon differences in colour and texture, resulted in a photomorphic unit map. The use of a decision tree including the various image characteristics allowed the conversion of the photomorphic unit map into a land cover map. For this, six main land cover types could be differentiated resulting in 16 different classes of the final map.
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