Ukrainian Journal of Forest and Wood Science

On the territory of Rivne region, there are 13 Parks-monuments of landscape art, nine monument of nature, one dendrological park and one zoological park out of 24 artificial objects of the nature reserve fund. Their dendroflora is composed of 446 species of plants. According to the frequency of occurrence, all species are conventionally divided into four groups: 1) species that are very common (in 20 or more objects); 2) species that moderately occur (10–19 objects); 3) species that rarely occur (5–9 objects); 4) species that are very rare (1–4 objects). The first group includes eight species, the second – 27, the third – 51, the fourth – 360 species. Тhe largest number of species of the nature reserve fund categories are represented in Bereznivskyi dendrological park (96.0% of the total number of species of the dendroflora studied). Parks-monuments of landscape art (119 species, 26.7%) are in second place in terms of species representativity, Monument of nature (112 species, 25.1%) are in the third place, and Rivne Zoological Park is in the fourth one (62 species, 13.9%). According to the degree of local representativity, the largest number of species is concentrated in the Bereznivskyi dendrological park. In second place by the number of species of woody plants are the park-monument of landscape art “Taras Shevchenko park in Rivne” and the monument of nature “Bilskyi Dendropark”. Artificial reserve parks are located within 12 districts of the region, among which the majority (six) is in Rivne district. The Bereznivskyi (one of the Parks-monuments of landscape art, one dendrological park) and Goshchany districts have the highest species richness. In the parks of the northern Polissia part of Rivne region, 441 were identified, and its southern part within the zone of deciduous forests features 127 species of woody plants. In the territories of the studied parks, there are centenary woody plants of 26 species (over 100 years). The largest number of them is in Rivne district. Such plants have been found within the artificial reserves of Rivne region, which are located within 11 districts. Most of them are in Rivne and Goshchany districts.

woody plants species, frequency of occurrence, nature reserve fund, centenary trees, arboreal diversity, cultivation centers