For the rational and sustainable forest use, some representative (reference) areas of ecosystems being high conservation value forests within the leasing estate of Tolshmenskoe, LLC, were selected. After that, the monitoring study for the assessment of the forest breeding, environmental and medium stabilizing functions and the reproduction capacity of the preserved forest ecosystems was carried out. Within the ecosystems, six sample sites were drawn and the survey based on the standard forest ecology methods was performed. The objects of the study (sample sites) were shaped to cover the maximum of all types of forest communities available at the leasing estate. Generally, the monitoring observation showed that the arboreal plants growing in the studied sample sites featured high resistance. The forest formation process is continuous but requires some silvicultural practices, such as appropriate care to stimulate the domination of the economically valuable wood species.

The article shows the analysis results of the vitality and sustainability of the plantings having introduced species in their composition in specially protected natural areas of the south taiga zone (Vologda region). The research purpose is to summarize the available information and carry out the silvicultural assessment of long-term introduction to the plantings in these territories. The species composition is revealed and the sanitary and decorative state of tree and shrub vegetation is estimated. The research objects were the plantings growing in the following parks: Arboretum in Ustyuzhna, Old Park in the settlement of Danilovskoye, Old Park in the settlement of Mozhaiskoye, and Old Park in the village of Kurkino. It was found that the species composition of the suited specially protected natural areas is represented by 34 tree and shrub species: 4 coniferous tree species, 16 deciduous tree species, and 14 species of shrubs. The share of introduced species, in the whole, for all the objects under study is more than 60 %. During the recordings, 12 types of damage were found. According to the degree of influence they were divided into 3 groups: significantly reducing the stability in the plantings (18 % of the total number of damaged trees), reducing the decorative effect (38 %), and reducing the sanitary state of wood species (44 %). In order to improve the sanitary state of the plantings, to ensure that the plantings perform their target functions, and to reduce the economic damage caused by negative anthropogenic factors, it is necessary to take sanitary and recreational measures such as removing dangerous, drying and dead trees. Valuable plants (those of old age or having historical value) were selected; certification of valuable trees was carried out. The biological diversity of tree and shrub vegetation was estimated through determining biodiversity indices. The relationship between the forest stand composition and its resistance to negative environmental factors was revealed. The results of the research can be used by the executive authorities of the constituent entities of the Russian Federation in planning and organizing the works on arranging protection forests, including urban green zones.

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The purpose of the research was to identify, research and assess high conservation value forests (HCVF) and representative areas allocated in the lease base of the enterprise. The object of the research is forest areas of special conservation value in the lease base of the logging enterprise LLC Tolshmenskoye. The subject of the research is the quantitative and qualitative characteristics of the high conservation value forests stands. The research was carried out on four stationary objects, which are represented by coniferous stands. The share of conifers in the composition of the stand is from seven to nine units. The researches were based both on the research performed of forest management and reporting documentation of the enterprise, and on the basis of field research materials. The choice of research objects is due to the fact that these plantations perform the function of preserving biological diversity and are excluded from economic activity, which allows for long-term monitoring observations to assess quantitative and qualitative changes in the structure of forest stands and make conclusions about their performance of target functions. The results of the survey showed that the population of trees is characterized by high classes of sanitary assessment. In terms of health, most tree species show no signs of weakening. The number of healthy specimens according to the objects of research and according to the breed composition is quite high (at least 67%). No significant anthropogenic impacts have been identified. The number of undergrowth varied greatly according to the objects of research. The undergrowth is heterogeneous in composition. At the same time, aspen and spruce occupy the dominant position in the emerging tree canopy.

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