SciELO - Scientific Electronic Library Online

 
vol.21 issue3Use of satellite images in algebraic geoprocessing in the microregion of Campanha Ocidental, Rio Grande do Sul state, BrazilDeforestation assessment in the state of Rondônia between 2001 and 2011 author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Floresta e Ambiente

On-line version ISSN 2179-8087

Abstract

FERRAZ, Antonio Santana et al. Biomass stock estimate in a forest fragment using orbital data. Floresta Ambient. [online]. 2014, vol.21, n.3, pp.286-296.  Epub July 29, 2014. ISSN 2179-8087.  http://dx.doi.org/10.1590/2179-8087.052213.

The objective of this study was to use a set of orthorectified IKONOS satellite data to estimate aerial biomass in a semideciduous seasonal forest fragment located in Viçosa, state of Minas Gerais, Brazil. Estimates of above ground biomass were obtained with allometric equations based on forest inventory data conducted in fifteen 1,000 m2 (20 m × 50 m) parcels. These estimates were related to digital variables (reflectance of four spectral bands and 12 vegetation indices) extracted from digital images using Artificial Neural Network (ANN). The results showed that for the conditions of the study area, the use of ANN with only bands 1, 2, 3 and 4 of the IKONOS satellite as input variables was efficient to estimate the total aerial biomass, although the residual was even lower when 4 bands and 12 vegetation indices were used.

Keywords : remote sensing; biophysical parameter; semideciduous forest.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License