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Abstract

In the result of conducted researches studied of state of pine forests of middleaged pine forest stands in belt pine forests of the Priirtyshye (for example, the SFNFR «Semey ormany») based on the use of coefficient of growth tension (CEI). It was found that the highest coefficient of growth tension characterized by trees with the assessment of the vital status as «greatly weakened» and «dying», the value of the CEI which is in the range of 10 to 17 cm / cm², lowest value of coefficient of growth tension characterized by «healthy» trees (CEI = 4-7 cm / cm²). In the result of researches the preliminary assessment of the scale of the state of pine stands of III age class.