MORPHOMETRIC CHARACTERIZATION AS PLANNING AND MANAGEMENT INSTRUMENTS OF THE CAJABUÇU RIVER RIVER WATER BASIN IN PERNAMBUCO

Abstract

The morphometry of the basins makes it possible to identify the potential for flooding or flooding and the natural fragility of the water body's retention. This article analyzes the morphometric characterization of the Cajabuçu river sub-basin using the QGIS software and processing complements. The main river has a homogeneous slope with slow altimetric change, medium drainage density, moderately sinuous nature with tortuous potential and high concentration time compared to the time in the thalweg, in addition, the basin has a predominance of undulating and strongly undulating slopes. It was concluded that the basin does not tend to floods and large floods, but with the possibility of punctual filling of some stretches.