Abstract

PAZ-PELLAT, Fernando et al. Development of remote sensing vegetation spectral growth curves. Rev. mex. de cienc. pecuarias [online]. 2011, vol.2, n.4, pp.445-464. ISSN 2448-6698.

Development of historic vegetation growth curves for both grasslands and shrublands in Mexico becomes a real challenge due to lack of statistics. Remote sensing technology using satellites, allows obtaining a first approximation through vegetation indices (VI). The present study discusses an indirect parametric modeling of the biomass growth curve in individual pixels of both Advanced Very High Resolution Radiometer (AVHRR) and Moderate Resolution Imaging Spectroradiometer (MODIS), thus allowing their characterization using pre and post process algorithms. Results obtained through application of the algorithms discussed in the present paper, allow obtaining annual growth curves at 100 ha (AHVRR) and 6.25 ha (MODIS) scales that can be used in studies on climate change and on grassland/shrubland management in Mexico.

Keywords : Growth curve; Gassland/shrubland; NDVIcp index; IVCP index; Parametric model; AVHRR; MODIS; Climate change.