Discriminação da cobertura vegetal em uma região do Cerrado mato-grossense por meio do índice de vegetação por diferença normalizada.

Gomes de Oliveira, Pedro Paulo; Scorpioni de Oliveira, Deyse; de Oliveira Filho, Paulo Costa; Delgado Martínez, Rafael; Barúa Acosta, Hugo Armando; dos Santos Laroca, Jackeline Vieira; Miranda de Oliveira, Mateus

In recent decades, the intensification of the process of replacing the natural vegetation of the Cerrado by areas associated with human activities has caused great impacts on landscapes, in this sense, understanding the dynamics of different environmental systems because of the impacts caused by climate variability and action human, has been the effort of several researchers. Thus, the present work aimed to evaluate the potential of the normalized difference vegetation index (NDVI) applied to LANDSAT 8 satellite images to discriminate vegetation classes in the wet and dry period in a Cerrado region of Mato Grosso. The NDVI values were obtained through the ratio between the difference between the near infrared (pIV) and red (pV) reflectivity's, and the data were processed in the QGIS program version 3.10. The results of this research allow us to conclude that the NDVI vegetation index used allowed the analysis of the vegetation dynamics in Vale do São Lourenço - MT. The vegetation of the study area behaved according to the availability of water in the soil profile, with higher values of the vegetation index in the rainy season and low photosynthetic activity in the dry season.

MATO Grosso (Brazil : State); NORMALIZED difference vegetation index; REMOTE-sensing images; CERRADOS; LANDSAT satellites; VEGETATION dynamics; HUMAN activity recognition

Investigación Agraria, 2022, Vol 24, Issue 2, p86

1684-9086

Academic Journal

10.18004/investig.agrar.2022.diciembre.2402717