Baikal region: Complex assessment of weakening of forest ecosystems caused by atmospheric emissions

Results of investigations on large-scale technogenic damage of forests in the Baikal region are reported. The authors consider methods of identifying areas affected by specific industrial centers, ways of assessing the physiological state of weakened tree stands and identification of secondary factors in declining of tree stands, as well as a possibility for compiling complex maps indicating ecological and phytotoxicological state of polluted areas.