INTEGRATION OF SPECTRAL INDICES IN THE ESTIMATION OF BIOMASS AND CARBON IN EUCALYPTUS GRANDIS FORESTS: A CASE STUDY WITH NDVI AND CO2FLUX
Integrating spectral indices to estimate biomass and carbon in Eucalyptus grandis forests: a case study using NDVI and CO2FLUX
DOI:
https://doi.org/10.5016/geociencias.v43i3.18171Abstract
Planted forests are alternatives to reduce greenhouse gases, the accumulation of biomass in their structure in the carbon cycle and the environmental service provided in the gas sequestration, which needs to be estimated through technologies that can measure their efficiency and inventory. This work aims to estimate the values of two spectral indices (NDVI and CO2Flux), with biomass data in planted forest of the Eucalyptus grandis species. For this, 3 scenes of the Landsat-8 satellite with orbital indication (LO8221076) with spatial resolution of 30 meters were adopted. The sampling points were obtained through the Forest Inventory occurred in December 2016 in a total area of 2050 ha, accounting for 119,498 tree individuals in 6 farms installed between the municipalities of Borebi and Iaras in the state of São Paulo, belonging to the company Lwarcel Celulose. The results showed the high scale values of the NDVI and CO2Flux indices, with vegetative vigor and sequestration efficiency in the samples. The study demonstrates the feasibility of adopting the indices for complete analysis of the data, adding and integrating the forest inventory model disseminated by the IPCC with those of remote sensing for a dynamic assessment of the forest sector.
Keywords: NDVI, CO2Flux, Remote Sensing, Eucalyptus.