Quantifica??o das áreas de preserva??o permanente e de reserva legal em propriedades da bacia do Rio Pomba-MG

摘要

Aiming at rendering effective the permanent preservation areas (PPAs) and legal reserve areas (LRA) in the rural properties to fulfill the legislation, it is extremely important to quantify and determine the percentage occupied by these areas in the rural properties as well as the role they play in the economic activities of the farmers. Thus, this project aimed to quantify the PPAs and LRA regarding the total area of the investigated rural properties. The existing area with native vegetation was also determined in each property and in the PPAs in compliance with the legislation. The sample was composed by 47 properties, stratified in six strata and using as a stratification criterion the size of each one of them. Data were collected using a GPS and quantification using the GIS ArcView 3.3. Based on the results, it was verified that the 47 studied properties occupy an area of 1.854.35ha, of which, 811.35ha, referring to the 43.75% of the total, are APPs and ARLs, in compliance with the federal and state legislations. Moreover, only 21.09% of these areas show an appropriate land use, evidencing a non-fulfillment of the law and the need to implement effective corrective measures.