Abstract

CARDONA LINDO, Claudia Marcela; GARZON BARRERO, Julián  and  JIMENEZ CLEVES, Gonzalo. Estimation of Carbon Capture in an Urban Forest Relict through Teledetection Techniques. Rev. ing. univ. Medellín [online]. 2020, vol.19, n.37, pp.13-28.  Epub Sep 03, 2021. ISSN 1692-3324.  https://doi.org/10.22395/rium.v19n37a1.

The objective of this study is to calculate the capacity of CO2 capture from the forest relict of the University of Quindio "Jardín Botânico Cedro Rosado" through the use of techniques that integrate in situ measurements with remote sensing. In the first phase, multispectral images, Normalized Differential Vegetation Index (NDVI), Improved Vegetation Index (EVI), Soil Adjusted Vegetation Index (SAVI), and object-based classification will be obtained. In the second phase, tree variables will be measured, and Leaf Area Index (LAI) and the Fraction of Absorbed Photosynthetically Active Radiation (Fapar) biophysical variables will be estimated with the Tracing Radiation and Architecture of Canopies (TRAC) optical instrument, in order to correlate them with the vegetation indexes. This will define the constants of the exponential regression model defining the local allometric equation, which will interpolate the biomass in the entire image.

Keywords : Carbon caption; remote sensing; allometric equation; vegetation indices; biophysical variables; OBIA.

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