The structure of the dendroflora of artificial monuments of nature of the Rivne region
Journal Title: Екологічні науки - Year 2018, Vol 22, Issue
Abstract
The article gives us the results of analysis of systematical, biomorphological, geographical, ecological and phytocenotic structures of artificial monuments of nature of the Rivne region. There are nine artificial monuments of nature in this administrative region. As a result of research of their dendroflora there were found out 115 species of arboreal plants, 21,74% of which belongs to the department of Pynophyta and 78,26% – to the department of Magnoliophyta. The family of Rosaceae is the most represented. As for the classes of height prevail trees of the first size, and medium-high bushes. Depending on such ecological factors as light, moisture, temperature and fertility of soil prevail heliophytyc, mesophytes, frost-resistant and mesotrophic species of arboreal plants. It was discovered that the dendroflora consists of exotic and native species (77 and 38 species). Therefore the geographical analysis of dendroflora was conducted separately. The exotic species of the plants represent the Holarctic kindom and seven floristics regions: Circumboreal, Atlantic North American, Eastern Asiatic, Irano-Turanian, Mediterranean, Madrean, Rocky Mounain. The major part of the researched species are from Cirkumboreal floristics regions. The native species represent the european, eurasian, cirkumboreal, mediterranean, submediterranean, easterneurope-asiatic, europe-westsibirican and euras-southsibirican types of areas. The species of the eurasian type prevail, which present 11 geoelements. A great part of the species found in native plant groups carry out the role of asectators – 48,27%. Also there are species that carry out the role of dominants, codominants and edaphicators. The species of arboreal plants which represent different phytocenotypes are 21,56%.
Authors and Affiliations
К. Г. Покотилова
Keywords
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