Title :
Analysis of deforestation in Mato Grosso using multi-temporal Landsat TM Imageries
Author :
Maruyama, Megumi ; Yamaguchi, Yasushi
Author_Institution :
Grad. Sch. of Environ. Studies, Nagoya Univ., Nagoya, Japan
Abstract :
This paper summarizes the result of vegetation cover changes in Mato Grosso State in Amazonia, Central-West of Brazil. The study area is covered by Landsat TM Imagery Path 227 and Row 69, where soybean plantation spreads along the Highway BR 163. With the Global demand for biofuel, it recently became one of the main export crops in Brazil, causing large-scale deforestation in the Brazilian Amazon. Using multi-temporal imageries of the same area, alteration of vegetation cover was analyzed, performing unsupervised classification using NDVI analysis. Also, visual interpretation of deforestation within anthropogenic polygons was done within the natural forests. As a result, we concluded that the forest cover decreased from 76% in 1991 to 13% in 2009 in that area.
Keywords :
biofuel; crops; geophysical image processing; photogrammetry; vegetation mapping; AD 1991; AD 2009; Brazilian Amazon; Highway BR 163; Mato Grosso State; NDVI analysis; anthropogenic polygons; biofuel; deforestation; export crops; multitemporal LANDSAT TM imageries; soybean plantation; unsupervised classification; vegetation cover changes; visual interpretation; Cities and towns; Earth; Remote sensing; Roads; Satellites; Vegetation mapping; Deforestation; Highway BR 163; Mato Grosso State; NDVI; soybean;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5649630
