Avaliação da qualidade do cadastro ambiental rural (CAR) em uma pequena propriedade no município de Caibaté-RS

Abstract

The objective of this work was to evaluate the quality of Cadastro Ambiental Rural in a small property, in the town of Caibaté – RS, comparing data collected in the field with those obtained through the RapidEye image provided by the Ministry of the Environment. The data were collected through GNSS RTK System, taken as reference, and compared with data collected through RapidEye image in the Rural Environmental Registry Module – RS. The differences of areas of each relevant feature to CAR were compared and the positional quality of control points collected in the RapidEye image with those collected in the field. Regarding the features, a significant difference was observed in the areas of each one, and it was difficult to identify Areas of Permanent Preservation, especially when these are within vegetation. To identify vegetation patches, the RapidEye image was satisfactory. Regarding positional quality, none of the control points presented difference greater than one pixel, which can be considered good. It can be concluded that the RapidEye image is efficient in identifying vegetation patches and delimitation of the area of the property, but it cannot correctly identify APPs, which can lead to future errors in forest restoration projects and even omission of information by part of the owner.