Abstract

LOPEZ GARCIA, Alejandro Ramón. Study of the severity by the fire of 2012 and regeneration of vegetation in La Primavera Forest, Mexico, using LANDSAT 7 images. Rev. cartogr. [online]. 2020, n.101, pp.35-50.  Epub Mar 14, 2022. ISSN 2663-3981.  https://doi.org/10.35424/rcarto.i101.420.

The fire of April 2012 in the Bosque La Primavera is considered to be the most extensive and intense that is registered inside the statistics of the forest. It has been generated information through remote sensing techniques from multi-spectral images belonging to the ETM+ sensor of LANDSAT 7 which was incorporated into a GIS, to perform the mapping and analysis of the severity and regeneration time of the affected vegetation. The delimitation of the fire was carried out through the NBR spectral index, as well as its severity by means of the dNBR, obtaining that the majority of the surface of the damage corresponds to LOW and MEDIUM severity that accounted 88% of the affected area. The NDVI values allowed to estimate the phenological state of the vegetation in the area of the fire with which served later to estimate the regeneration time as well, resulting this three years, where thickets and other shrubs species were mostly damaged, being a superficial fire type.

Keywords : LANDSAT 7; fire severity; NBR; NDVI; vegetation regeneration.

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