Comparison may also be a preliminary of evaluation.Furthermore, there are a number of similarities between the regrowth dynamics of NDVI and SAVI on aspect ways.Indeed, for instance, NDVI on east facing slopes increased from 15.5% to 55.4% between September 2008 and June 2011 and then to 58.3%, while SAVI on east facing slopes increased from 17.3% to 61.4% between September 2008 and June 2011 and then to 66.8% in the latter 6-year period.