Mapeamento de capacidade de uso das terras da região norte central do Paraná

Abstract

The North Central Mesoregion of Paraná stands out on the state scene in the context of agricultural and livestock productivity. The high regional agricultural performance experienced in recent decades has brought some important environmental impacts such as laminar erosion, soil degradation and eutrophication of water bodies. In this sense, different sectors of society have indicated the need for projects that integrate information on land use capacity and pedological and topographic variables. Based on these assumptions, the present research aimed to develop mapping of usability in the area covered by the North Central Mesoregion, aiming to provide information that serves as an instrument for land use and management, increasing agricultural production and soil conservation practices. . The research project sought to generate data and pedological maps, slope, estimated soil depth, susceptibility to erosion, and land use and cover, as well as classify land use capacity based on mandatory diagnostic criteria that make up the minimum formula effective soil depth, texture, permeability, slope and erosion, as well as associated restrictive factors. The research resulted in the following classes: Class II covering areas characterized by deep soils and very clayey texture, conferring low risks of erosion with the predominance of Red Oxisol. Class IIe is composed of deep soils with good drainage and a more clayey texture, with the Bruno Oxisol and Red Nitossolo soil classes standing out. Class IIIs,e, predominantly occupied by soils of the Red Argisol type, with a texture varying between medium and medium clayey. Class IVe, composed of Cambisols, encompassing areas with slopes between 8 and 20%, presenting susceptibility to moderate risks. Class IVs,e, with Red-Yellow Argisol, with a more sandy texture and Class VIIs,e, characterized by significant limitations due to the steep relief (strongly undulating to mountainous) and shallow soils, covering soils exclusively of the Litholic Neosol type.