Alteração da paisagem do município de Candeias do Jamari em Rondônia: uma análise temporal dos anos de 2007 a 2020.
Autor:
Castro dos Santos, Sheila
; Pedroso Guimarães, Siane Cristhina
; Marques de Lira, Hélio
Fecha:
2021Palabra clave:
Revista / editorial:
Confins-Revue Franco-Bresilienne de Geographie-Revista Franco-Brasileira de GeografíaTipo de Ítem:
Articulo Revista IndexadaDirección web:
https://journals.openedition.org/confins/38313Resumen:
L'objectif de cette recherche est de réaliser une analyse de la spatialisation des sources de chaleur, durant les 13 dernières années dans la commune de Candeias do Jamari, État de Rondônia, en Amazonie. La base méthodologique est une approche qualitative et quantitative des données, et a comme point d’ancrage des images satellites et les cartes des sources de chaleur produites à partir d’une série de données (2007, 2011, 1015, 2019 et 2020), dont les densités des zones des études ont été calculées à l'aide de l'estimateur de densité kernel, présent dans l’extension Spatial Analyst du logiciel libre QGIS 2.8.9 WIEN. Des travaux de ce genre permettent une vision globale du territoire, mettant en évidence les régions qui souffrent plus de pressions anthropiques et des processus intrinsèques à cette société, ainsi qu'une évaluation à la lumière de la législation en vigueur. Au cours de l'analyse, on a remarqué qu’il y a une constante évolution du processus de dégradation de l'environnement dans la commune, renforcé par le processus de brûlis, atteignant 1.899, 496, 7.609, 18.635 et 33 centres de chaleur pour les années 2007, 2011, 2015, 2019 et 2020, respectivement. L'occupation de zones restreintes sans protection adéquate et la transformation de zones précédemment indiquées pour la cueillette des plantes ont été mises en évidence, elles sont aujourd'hui utilisées pour la production à grande échelle de soja et/ou de pâturages.
Descripción:
The objective of this research is to do an analysis of the spatialization of hot spots, over 13 years, in Candeias do Jamari, state of Rondonia, in the Amazon. The methodological basis is a qualitative and quantitative approach of the data and is anchored in satellite images and maps of hot spots produced from a set of data (2007, 2011, 1015, 2019 and 2020), where densities of the areas of study were calculated using the kernel density estimator, present in the Spatial Analyst extension of the free software QGIS 2.8.9 WIEN. Works of this nature allow a global view of the area, highlighting the regions that most suffer from anthropic pressures and the processes that are intrinsic to this society, as well as an assessment in light of current legislation. During the analysis, there was a constant evolution in the environmental degradation process in the county, propitiated by the slash and burn process, reaching 1,899, 496, 7,609, 18,635 and 33 hot spots for the years 2007, 2011, 2015, 2019 and 2020, respectively. It was evident that the occupation of restricted areas without proper protection and the transformation of areas previously indicated for the vegetal extraction, nowadays, used for large-scale production of soy and / or pasture.
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