Analysis of Land Cover Changes of a Cerrado (Tropical Savanna) Area in the Centre-West of Brazil
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.
Keywords
Land cover; Cerrado; Satellite images; Temporal analysis
Full Text:
PDFDOI: https://doi.org/10.11137/2016_1_76_90
Refbacks
- There are currently no refbacks.

This work is licensed under a Creative Commons Attribution 4.0 International License.
Indexers and Bibliographic Databases | Social Media | |
---|---|---|
![]() |