Analysis of Land Cover Changes of a Cerrado (Tropical Savanna) Area in the Centre-West of Brazil

Authors

  • Roberto Macedo Gamarra Universidade Federal de Mato Grosso do Sul
  • Thiago da Silva Ferreira Universidade Federal de Mato Grosso do Sul
  • Kennedy Francis Roche Universidade Federal de Mato Grosso do Sul
  • Humberto José Sepa de Matos Filho Universidade Federal de Mato Grosso do Sul
  • Thais Gisele Torres Catalani Universidade Federal de Mato Grosso do Sul
  • Teresa Cristina Stocco Pagotto Universidade Federal de Mato Grosso do Sul
  • Antonio Conceição Paranhos Filho Universidade Federal de Mato Grosso do Sul

DOI:

https://doi.org/10.11137/2016_1_76_90

Keywords:

Land cover, Cerrado, Satellite images, Temporal analysis

Abstract

The objective of the present work was to carry out an analysis of the land cover of an area in the centre-west of Brazil, at two different times, in 1966 and 2001, using a satellite image and a topographic map, in the Geographic Information System (GIS) environment. The 1966 land cover map was obtained by vectorizing the SE-22-Y-A-V topographic map (IBGE), while the 2001 land cover map was obtained from supervised automatic classification of the Landsat image ETM+ satellite orbit/point 224/073 of August 2001. The analysis showed alterations from natural cover to anthropogenic. In 1966, natural cover was 90% or more (principally true cerrado and forest), while in 2001, natural cover had decreased to 24%, being replaced by arable land and primarily grassland.

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Published

2017-02-15

Issue

Vol. 39 No. 1 (2016)

Section

Article

License

This journal is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.