Physiological reaction of Fagus sylvatica, Rubus idaeus, Dryopteris filix-mas, and Vaccinium myrtillus species was studied in two segments of group of type of geobiocoens Abieti-Fageta inferiora influenced by air pollution. At present, spruce stands at the age of 80-100 and 10-15 years with small amount of naturally regenerated beech and fir in undergrowth are grown in mentioned segments. The content of Ca, Mg, K, Na, C and N in topsoil of Dystric Cambisols depended on the age of spruce stands. C/N ratios were lower and contents of energy higher in the mature stand. The highest content of C...