Hidrogeomorfologia de Áreas Úmidas da Chapada do Araripe, Nordeste do Brasil

Abstract

Wetlands (AUs) are environments that are periodically or constantly flooded by shallow water. These environments, in dry lands, have great environmental relevance due to the water availability they present. This work sought to hydrogeomorphologically analyze the UAs associated with drainage headwaters in Chapada do Araripe, Brazilian semi-arid region. Therefore, the identification of UAs was carried out from remote sensing and field data, the analysis was carried out by evaluating the environmental parameters, and later representative points were defined for detailing. The results showed the relationship between the hydrogeological and hydrogeomorphological conditions in the development and maintenance of UAs. Among the applied parameters, the TWI, the terrain curvature, the slope and the altitude remained constant, proving to be opportune for the study related to UAs in headwater areas. Another highlighted point was the intense use of the land, since these are environments that have a greater water supply, and this fact can be associated with the intermittency, which 4 of the 6 UAs presented. Therefore, the UAs of Chapada do Araripe are maintained, mainly due to the hydrogeomorphological, geomorphological and hydrogeological conditions.