Delineation of biogeomorphic land units across a tropical natural and humanized terrain in Los Tuxtlas, Veracruz, Mexico

This paper analyzes landscape in a rainforest region integrating geomorphologic and ecosystem analysis methods. Major landscape elements (geology, geomorphology, soils, vegetation and land use) were mapped as biogeomorphic land units using remote sensing and geographic information systems (GIS). Associations between these variables were analyzed by map fusion and the results were expressed on a land unit map (scale ca. 1:100,000). Volcanic structures are dominant in the study area. Lava flows cover most of the region, mainly as basal