The article considers the results of assessing the state of the tree layer of oak forests based on calculating the severity of population strategies of species in the community. The obtained values made it possible to establish how actively of the strategy is being implemented in various types of oak forests. The data analysis showed a high degree of correlation with succession processes characteristic of the considered communities, which expands the possibilities of quantitative assessment of forest sustainability. It has been established that the optimal condition of oak forests depends not so much on the presence of such a typical competitor as oak, but on the possibility of growing tree species with other strategies, which allows for a normal generational turn of in the plant community. Very important is the joint growth of trees belonging to all three types of population strategies: competitive - Quercus robur; ruderal - Betula pendula, Alnus incana, elm species; tolerant - Tilia cordata, Acer platanoides etc. The presence of external influences ensuring the creation of gaps in the tree layer for the development of oak undergrowth and heliophilous species also contributes to the long-term existence of the forest community. It was found that the existence of a relatively stable forest community can be expressed with the following values of degree of severity population strategies of the stand: competitiveness - 50-58, reactivity - 35-44, tolerance - 21-29.

文章考虑了基于计算群落物种种群策略严重性的橡树林树层状况评估结果。获得的值使我们能够确定该战略在各种类型的橡树林中实施的积极程度。数据分析表明与所考虑群落的演替过程特征高度相关，这扩大了森林可持续性定量评估的可能性。已经确定，橡树林的最佳条件与其说取决于橡树这样的典型竞争者的存在，还取决于以其他策略种植树种的可能性，这允许植物群落的正常世代交替.栎木; 粗鲁 - Betula pendula，Alnus incana，榆树种; 耐受 - Tilia cordata、Acer platanoides等。外部影响的存在确保了在树层中为橡树灌木和嗜日物种的发展创造间隙，这也有助于森林群落的长期存在。研究发现，相对稳定的森林群落的存在可以用林分种群策略的以下严重程度值来表示：竞争力- 50-58，反应性- 35-44，耐受性- 21-29。