Kharachko T. Norway Spruce (Picea abies (L.) Karst.) in forest stands of Male Polissya.

Object of investigation - axenic and mixed forest plantations of Norway Spruce (Picea abies (L.) Karst.) on the territory of Male Polissya. The objective - to estimate the modern state of Norway Spruce anthropogenic growth area in conditions of Male Poliossya in Ukraine, to estimate the processes of fructification and natural regeneration, forest seed basis condition, species diversification and the expediency of its further introduction in the region planting industry. Methods of investigation - forestry and taxonomic, typology, edaphology, variance. Scientific novelty - database of Norway Spruce forest plantation area in the size of 674,5ha was formed for the first time. Generalization of Norway Spruce origin, naturalization level, and natural regeneration capability was received on its basis. The ability and optimum forest vegetative conditions for the self-seeding penetration into other forest stands soil horizons was revealed. This allowed to develop recommendations as to the way of receiving standard seedling planting material in the size of 1800 thousand pieces oha-1. Close connection of indexes of Norway Spruce productivity in plantations with seeds scale coefficient of narrowing (Cn), cones diameter, coefficient of projection (Cp) of upper edge of seeds scales, complex value (Cn - Cp) was revealed. Peculiarities of seed scales form indexes spreading in spruce plantations in different silvicultural regions were elucidated as they are important for further successful introduction of highly productive forms of species in silvicultural production. The influence of carpophaga's on decrease (6…25%) of cone crop was determined. That helps to study the peculiarities of Norway Spruce seed bearing in a better way. The results of the thesis allow revealing target morphological forms of Norway Spruce, the use of which in silvicultural production of the investigation region may improve the life length, biological firmness and sanitary condition of newly formed forest cultures with the help of the culture under investigation. Fast-growing morphological forms that build up considerable reserves of trunk timber in juvenile age must be used in plantation silviculture. Peculiarities of getting planting material determine the most effective directions of its use. It allows us to recommend Norway Spruce for silviculture formation, Christmas trees plantations, and decorative planting material growing, using the worked-out recommendations as to the seedlings obtaining, to improve inoculation process of decorative forms. The results of the investigation were also used to develop "Practical recommendations for getting Norway Spruce seedlings and their use in silvicultural production". The results of the investigation were used for taking measures as to the assistance in appearance of Norway Spruce natural renovation on the territory of Zhovkva Forestry Offspring of the Regional Communal Specialized Forestry Enterprise. Field of application: forestry.