DINÁMICA ESPACIAL Y TEMPORAL DE LOS CAMBIOS DE COBERTURAS DE LA TIERRA EN LA CUENCA HIDROGRÁFICA DEL RIO CAUAMÉ (1988-2023), ESTADO DE RORAIMA, BRASIL

Autores/as

DOI:

https://doi.org/10.4215/rm2023.e22028

Palabras clave:

Geoprocesamiento; Sabanas de Roraima; Recursos Naturales; Clasificaciones Digitales; Fotointerpretación

Resumen

The study of spatial -temporal dynamics anywhere on the earth's surface is very important, allowing the monitoring and evaluation of the socio-environmental impacts generated by anthropic activities. The objective of this research was to evaluate the spatial-temporal dynamics of changes in land cover for the Watershed Cauame River, Roraima, Brazil, for the years 1988, 2003 and 2023, with Geoprocessing techniques in Landsat images, estimating the areas that were affected by human activities during this period, also analysing the factors that are influencing these changes. As results we obtained the presence of a strong change process, especially the savanna covers, replaced by crops and buildings. The savannas occupied 72.27% of the total area in 1988, decreasing in 2023 by 60.47% of the total area, with a loss of 37,556 ha. Finally, it is stated that the changes in the coverage, the deforestation processes and the extensive removal of savanna coverage are the product of anthropogenic activities, due to the pressure that the population is exerting inside and outside of the basin area.

Keywords: Geoprocessing; Roraima Savanna; Natural Resources; Digital Classifications; Photointerpretation.

Biografía del autor/a

  • Jesús Jordán Marquina Vera, Universidad de Los Andes Venezuela, Caracas, Venezuela

    MAESTRADO IN REMOTE SENSING AND GIS, APPLIED IN NATURAL RESOURSES - INDIAN INSTITUTE OF REMOTE SENSING (2008). Geografo da Universidade dos Andes-Venezuela en 2004, Atualmente é professor assistente - Universidad de Los Andes Venezuela. Tem experiência na área de Geociências, com ênfase em Geociências, especialista em Sensoreamento Remoto and Sistemas de Informação Geografica (SIG), Agrimensura, Fotointerpretação, Geoecológia, Planejamento Territorial, Gestão em Recursos Naturais e Avaliação de Impactos SocioAmbientais das Paisajes. 

  • Stelio Soares Tavares, Universidade Federal de Roraima, Boa Vista (RR), Brasil

    Doutorado em Sensoriamento Remoto pelo Instituto Nacional de Pesquisas Espaciais, Brasil(2004)
    Professor Titular da Universidade Federal de Roraima , Brasil

  • Luiza Câmara Becerra Neta, Universidade Federal de Roraima, Boa Vista (RR), Brasil

    Doutorado em Geologia e Geoquímica pela Universidade Federal do Pará, Brasil(2008)
    Professora Titular da Universidade Federal de Roraima , Brasil

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Publicado

2023-12-02

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