Ecological and geographical analysis of dendroflora of artificial protected parks in the Rivne region
Journal Title: Екологічні науки - Year 2018, Vol 23, Issue
Abstract
The article presents the results of the study of ecological and geographic structure of dendroflora of 25 artificial protected parks in the Rivne region. The studied dendroflora is represented by 481 species of woody plants. Ecological analysis showed a significant part of light-loving species of plants (53.64%). In regard to moisture prevail mesophytes (32.02%) and xerophytes (28.27%). The larger part of species belongs to the ecological group of frost-resistant plants (63.83%). As to the soil fertility, the eco-group of mesotrophs (47.89%) is the first one. Dendroflora of the artificial protected parks consists of native (19.33%) and exotic (80.67%) species of woody plants, which are naturаlly widespread in the Holarctic kingdom, Circumboreal, Eastern Asiatic, Irano-Turanian, Atlantic North American, Madrean, Rocky Mounain, Mediterranean and Sahara-Arabic floristic areas. Only 66.75% of exotic species naturally grow within one floristic region. The largest number is in the Irano-Turanian (74 species) and Circumboreal (64 species) floristic regions. From two floristic regions comes – 116 species (29.90%), from three – 13 species of plants (3.35%). In the native fraction, dendroflora is dominated by plant species of European (52 species) and Eurasian (17 species) types of habitats. They represent 31 geoelements, 20 species of woody plants belong to the European geoelement.
Authors and Affiliations
К. Г. Покотилова
Keywords
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