Undergrowth role in sustainability of forest ecosystems in Prikhopyorye

In article results of studying the role of undergrowth in estimation the stable state of forest ecosystems of Prikhopyorye are considered. The special role of Acer tataricum L is allocated during the reduction succession after carrying out sanitary cuttings in oak groves. Dependence of age structure of Acer tataricum L. is revealed from degree of top circle safety.