Resumen de Erosion and ecology in the middle Ebro basin. Slope aspect as a factor of erosional processes. An introduction approach

José Carlos González Hidalgo, María Teresa Echeverría Arnedo, Francisco Pellicer Corellano

• During the summer of 1989, the Department of Geography at Zaragoza University (Spain), started up a research focussed on erosion processes under seimarid environment in the Ebro River Basin (NE Spain). The aims of this paper are to present a brief global note about the principal investigation lines, techniques used and advances of results