Changes in permanent preservation areas in rural properties of the Santa Catarina state southern plateau according to the laws No. 4,771 and 12,651

Abstract

This research aimed to study the parameters of the current and past Brazilian Forest Act based on the Federal Laws No. 4,771 and 12,651 for the determination of the permanent preservation areas (PPA). Water springs and streams for 68 rural properties located at the Santa Catarina State Southern Plateau were considered. Thematic land use/land cover (LULC) as well as PPA maps from the visual interpretation of ortho rectified aerial images were elaborated. The PPA percentage for recovering over consolidated rural areas is directly proportional to both fiscal module size and area of the rural property. Comparing to the Law No. 4,771, there was a significant reduction in the PPA to be recovered on consolidated rural areas. In small rural properties there was an average reduction ranging from 54.6% to 81.8%. A total of 122,372 hectares (7.6% of the total area) characterized as PPA in consolidated rural areas can now be used economically.

Permanent Preservation Areas scenarios in dairy farms in the Vale do Taquari against the forest code

“…Comparing the results of the recovery areas found in this research with other works, Bonamigo et al (2017) analyzed 68 properties in the Santa Catarina state southern plateau. In rural properties that have between 1 and 2 fiscal modules, and that present a consolidated rural area, they found that the area to be recomposed represents, on average, 9% of the property area.…”

A proteção de nascentes para conservação dos recursos hídricos em atenção à nova lei florestal

“…A redução dos limites de APPs também foi mencionada por Bonamigo et al (2017) quando esses admitiram existir mudanças significativas em termos de redução de superfície entre APP definida pelo antigo Código Florestal e áreas a serem recompostas nas APPs em áreas rurais consolidadas definidas pela Lei nº 12.651/2012. Há projeções em grande escala, para a adequação à nova Lei Florestal, sobre a redução em 87% das áreas de restauração em topo de morro e em 58% a área total destinada à restauração no Brasil (Soares-Filho et al, 2014).…”

A Methodology for Determining and Analyzing Permanent Protection Areas of Properties Declared in the Rural Environmental Register- Car

“…First, a drainage network is extracted using digital elevation models (DEM) from the Shuttle Radar Topography Mission (SRTM) as input. After, PPA from both springs and rivers can be determined using distance buffers (Mello, et al, 2014;Bonamigo et al, 2017). However, it is noticed from previous mentioned researches that the GIS user is usually responsible for setting-up the buffer distances for each river segment.…”