Analysis of Forest Stand Resistance to Insect Attack According to Remote Sensing Data

Methods for analyzing the resistance of large woodlands (such as Siberian taiga forests) to insect attacks based on remote sensing data are proposed. As an indicator woodland’s resistance, we suggest a function normalized difference vegetative index (NDVI) susceptibility changes in land surface temperature (LST). Both NDVI and LST obtained via TERRA/AQUA satellite system. This was calculated spectral transfer response integral equation connecting LST. The analysis carried out two test sites, both which fir stands Krasnoyarsk region zone. In first case, have suffered damage inflicted by silk moth caterpillars, Dendrolimus sibiricus Tschetv. since 2015. Adjacent intact forest areas were also analyzed. second object study tree site damaged Black Fir Sawyer Monochamus urussovii Fischer 2013. It is demonstrated that above-mentioned changed significantly 2–3 years prior pest population outbreaks, therefore this can be used assess risk outbreak. Thereby, proposed compares favorably with vegetation cover estimates using NDVI, register significant defoliation cannot forecasting.