Caracterização da paisagem da microbacia do Rio Boa Vista no município de Piranhas - AL

Abstract

Landscape studies are relevant for understanding the elements that meet, both physical and social. The understanding generated by landscape studies can be useful in many ways, from assisting in decision making related to management of the site studied even for the production of knowledge of the population about the area they reside. The present work seeks to characterize the landscape in the Boa Vista River watershed, which is located in Piranhas-AL. To the conducting the research, a methodology was established divided into three stages, being they: data collection and bibliographic research, cabinet work, where the GIS, where free software Qgis comes in, versions 1.8.0 and 2.18, with their using data from CPRM (2007), the following resources were used: geological base provided by the Geological Survey of Brazil - CPRM (2007), which is available from the GEOBANK database; the cartographic base provided for the Alagoas Agroecological Zoning - ZAAL (2013) and EMBRAPA SOLOS (2012), which will serve to delimit the study area, geomorphology, drainage network, vegetation and soils, and field work with visits to points of the studied area to collect and confirm information. From this perspective, a compartmentalization of the geomorphological units where the units are defined: planar alluvial, inselbergs, pavement and valley area embedded with hills. These types of reliefs are distributed along the studied microbasin related to soil types, geological units, and local vegetation. An observation was also made of the land uses occurring in the area of This study found the existence of urban and agricultural uses.