A caracterização dos padrões de drenagem na bacia hidrográfica da grota criminosa, Marabá/PA

Abstract

The lack of technical knowledge in the characterization of drainage patterns in the hydrographic microbasin of the "Grota Criminosa", allows the deficiency of water management and planning, compromising the entire adjacent environment of the drainage. In this way, having the problem of the microbasin in mind, one has as goal to perform the hierarchization of the drainage. Thus, following the methodologies presented by Christofoletti (1980), the author's classifications Arthur N. Strahler (1952) and Robert E. Horton (1945) are used, classifying each drainage in a lower order, similar or superior, starting in the 1st order and following until all the drainages are classified. The information in the work was separated between high, medium and low course, with each order being characterized by means of a specific color and later, spatialized for comparison between methodologies. The characterization of the drainage patterns, allows the researcher a better understanding of the fluvial ramification, allowing the analysis of the spatial distribution of areas drained by larger orders. Thus, with this work we compared both methodologies to present two different ways of classifying the same microbasin, allowing a better explanation in the classification practice of each author and numerically representing the differentiation.