ANÁLISE DAS ÁREAS DE PRESERVAÇÃO PERMANENTE E DA QUALIDADE DA ÁGUA DO RIO CORRENTE, CORRENTE, PI

Abstract

The growth of the population of cities and their economic activities accelerate the deterioration of water quality in water bodies and advance over their preservation area. The present study aimed to analyze the Permanent Preservation Areas (APPs) of the Corrente River in the last three decades, verifying the legal order of use and occupation of urban land, environmental legislation and water quality. In this context, a mapping was carried out in the River Corrente PPAs to assess the changes in land use and occupation that occurred from 1998 to 2018 based on the Municipal Master Plan. Geoprocessing techniques and the MapBiomas database were used. The following classes of vegetation cover were found: pasture, natural forest, countryside formation and annual and perennial culture. Then, the collection and analysis of the physical-chemical and microbiological parameters of the water were carried out and compared with Resolution No. 357/2005 of the National Environment Council (CONAMA) and the Water Quality Index (IQA). The determination of the IQA resulted in values that varied between 50 and 62 in the dry period and 51 to 58 in the rainy period, varying between acceptable and good. The APP evolved from 39 hectares to 60.8 hectares, demonstrating greater preservation after the Municipal Master Plan. If the public authorities effectively inspected the result, it could be more effective.