Підсумки інвентаризації Pinus Nigra Arn. у складі вуличних насаджень міста Умань

Abstract

The taxonomic composition has been explored and the geographical analysis of P.\xa0nigra has been carried out in the street plantations of the City of Uman. To assess the feasibility of introducing a particular species into a particular area, along with its adaptive index, the preservation of those economic and valuable features, which are in the area of natural distribution and due to which it is desirable to cultivate, is of particular importance. On the basis of age parameters of the diameter and height of individual specimens, the high resistance of plants to the complicated conditions of the urbanized environment was noted and the prospect of using the species was established, under the influence of numerous anthropogenic factors on it. The increased interest in introduced plants in landscaping is due to the fact that in urban environments they are more stable and more durable than local species. The results show that all investigated P.\xa0nigra plants have high viability indicators and belong to the first group of availability. The significance of acclimatization numbers proves the promise of the introduction of P.\xa0nigra and the success of acclimatization in urban environments. In assessing the decorative qualities of P.\xa0nigra, it was basically found to stand out on the background of other species with its compact oval or cone crown, dark grey with different shades of cracked bark and long dark green needles. Due to these qualities, it retains an attractive appearance throughout the year, even in the winter. On the basis of the obtained results, the total annual decorative index of the main features of P.\xa0nigra is 4\xa0points. It is established that medieval trees dominate in the age structure of street plantations of the city of Uman. Young trees under the age of 10\xa0are absent at all, which suggests a low level of works for landscaping. According to the results of the evaluation of the success of P.\xa0nigra introduction in the urbanized environment, it is classified in the first group of promising plants, the degree of successful acclimatization is good, which indicates the normal acclimatization of this plant in the area of introduction. Thanks to its high decorative qualities, as well as its durability and unpretentiousness to the growth conditions, P.\xa0nigra perfectly adorns the streets of the city. It is grown both as a solitaire, and in combination with other plant species.