The prospects for using East-Asian species of plants in the landscape design of Primorsk region

The purpose of the research was comparative analysis of the climatic characteristics of dendrological regions and the prospects for the using eastasian plants for landscaping settlements in Primorsk Region. In the tree nursery of the Gornotaezhnaya Station of the FEB RAS, since 1935, numerous species from the regions have been subjected to introductory tests. By the results of long-term research the most promising plants for cultivation were selected. Many East Asian species (forsythia, abelia, magnolia, etc.) are highly decorative and fast growing, which is very important when creating plantings in urban environment. The compliance of climatic characteristics of dendrological area with biological characteristics of the introduced plants determined successful use of these species for landscape design. To identify dendrological areas suitable for the growth and development of the studied introduced species, the dendrointroduction zoning developed by V.K. Vasilyuk, V.M. Urusov and other researchers on the basis of existing schemes of floristic, geobotanical and forestry zoning was used. In this zoning, the following climatic factors were taken into account: winter temperature minimums, average annual precipitation, thickness and stability of the snow cover, the sum of positive temperatures of vegetative season. In total, within Primorsk Region, four landscaping districts: Southern, Western Middle Primorsk, Eastern Middle Primorsk and Northern were identified, which were divided into twelve dendrointroduction regions. The analysis of introductive resistance of East Asian plant species made it possible to identify 22 species promising for using in landscaping. Optimal soil and climatic conditions for the introduction of East Asian plant species were noted in the southern and western (middle Primorsk) parts, as well as on the southeastern coast of Primorsk Region.