NDVI Behavior in Savannas According to Environmental Aspects: The Pandeiros River APA Conservation Unit – MG

Abstract

In the historical development of the Brazilian Cerrado anthropic pressures caused systematic changes in land use and soil cover. Orbital remote sensing has become an important instrument for detecting this process, especially with the use of spectral indices, which permit understanding the dynamics of vegetation strongly influenced by in trinsic environmental factors. The objective of this article is to understand NDVI behavior in savanna lands located in the Pandeiros River APA conservation unit. Remote sensing techniques were used, especially the combination of spectral intervals. It was observed that environmental aspects influence NDVI behavior, with a decrease in savanna lands where sediments of quartzarenic soils are present and an increase in vereada areas where water is abundant. We conclude that remote sensing techniques associated with the integrated analysis of the environment produce more accurate analyses of the savanna present in the PR APA.