Compartimentação morfopedológica de Ubajara, Tianguá e Frecheirinha – Ceará: contribuições ao planejamento

Abstract

Morphopedology are an approach that sense to delimit the morphopedological compartments through the association between lithology, geomorphology and pedology. In this perspective, from the relation of these three environmental aspects, the spatiality worked is found in the Northwest portion of the state of Ceará, covering the municipalities of Tianguá, Ubajara and Frecheirinha. The general objective of this research is to elaborate the morphopedological compartmentalization focusing the planning environmental impact of the aforementioned municipalities, indicating the potential and limitations of each compartment delimited in this work. To achieve success, for this purpose, thematic maps were produced in a scale of 1: 250.00 and later the superposition of the maps of geology, geomorphology and pedology of according to the methodological procedures used. The results revealed the occurrence in the study area of ten geological units, seven geomorphological features and five soil classes. In addition, 07 compartments can be identified, namely: CMP I - Wet Plateau, CMP II - Wet / Sub-wet Escarpment, CMP III - Dry Reverse, CMP IV - Structural Steps, CMP V - Country Depression, CMP VI - Crests residuals, CMP VII - Fluvial plains. Each compartment has its own potential and limitations, the most vulnerable being called CMP II and CMP VI as a result of the slope of the relief and CMP VII as a result of the susceptibility to undergo erosive processes, in contrast, the CMP III is the largest compartment of the study spatiality, it presented flat reliefs and developed soils, showing itself as the most adequate compartment for the development of large-scale agricultural activities through the execution of adequate management of land use so that this resource will not be exhausted. The appointments of this work and the results achieved, allowed to conclude that the morphopedological compartmentalization, on the scale used, proved to be effective in characterizing the area and contributes to the initial directions for environmental planning.