Muñoz, R., Radic S.
Original Research Article, Special Edition: International
The agricultural farms in Magallanes Region comprise vast areas, which makes complex the quantification of vegetal communities in all paddocks, and the planning of soil sampling based on these communities, due to the time and cost involved. This study proposes a method to determine homogenous zones for soil sampling, according to Geographic Information Systems and remote sensing techniques, based on open source data and software. The specific aim is determining the number of sub-samples to generate a soil composite sample. The results obtained showed a classification of vegetation with an 85.6% of global reliability from Landsat 8 data and identified the plane lands (50.3% of farm total area) using Models of Digital Elevation of ASTER GDEM. The overall information allowed to generate 237.9 hectares defined like homogenous areas for different vegetal communities. Once the homogenous areas are determined, the sampling should be selected