Analysis of spatial distribution of vegetation coverage in the municipality of Santa Barbara/PA
DOI:
https://doi.org/10.6008/CBPC2237-9290.2020.003.0002Keywords:
Territory, Environmental analysis, SIGAbstract
Issues related to the understanding of environmental changes have aroused a strong concern of society in the face of major natural disasters and the impoverishment of natural resources. A tool of relevant importance in the detection, description, quantification and monitoring of environmental changes is the Geographic Information System (GIS), which combined with Remote Sensing (SR) data, becomes a valuable management tool for ecosystems. generally. Vegetation is an important geo-environmental indicator, as it is influenced by climatic, edaphologic and biotic factors. The Normalized Difference Vegetation Index has been used for studies regarding the dynamics of vegetation cover and its characteristics in relation to the spectral behavior of targets. Objective of the present work was to investigate the behavior of vegetation in the city of Santa Barbara/PA to interpret the organization of the geographical space and changes. An image of the Landsat 8 ETM + satellite made available by Science for Changing world - USGS, dated July 6, 2017, was used. The Datum used was WGS_1984_UTM_Zona_22 S, the procedures were performed in a GIS environment, using the ArcGis 10.5 software. This method consists of the photosynthetically active vegetation using light at the wavelength comprised by red, but since it does not use near infrared, it will be reflecting it. Using these reflectance parameters, an index, the NDVI, will be obtained. The results show a variety of vegetation cover that varies along the highways and dynamics of agricultural practice in the region.
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