Identificação e espacialização dos pomares de maçã utilizando dados de sensoriamento remoto no estado de Santa Catarina-Brasil

Abstract

Santa Catarina has national prominence in the cultivation of the apple, but currently the data of cultivated area are collected through subjective methodologies. In this sense, the present work aims to present an area estimation methodology using remote sensing techniques. In addition, through SRTM and meteorological data, the spatialization of one of the factors essential to apple cultivation, the chill hours (CH) was carried out, which determines the sprouting and consequently the productivity of the orchards. The results showed that by means of orbital images a mapping with 93.4% of Kappa index was possible, fact obtained mainly by the use of Sentinel-2 and Cbers-4 images. About 73% are in an altitude range between 1,100 and 1,400 m. In relation to the Chill Hours, orchards implanted between 700 and 900 CH total 71.3% of the production area. The applied methodology and the results achieved in the present work show great potential for the mapping of other apple producing regions in the state.