Ukr. Bot. J. 2016, 73(4): 367–377 https://doi.org/10.15407/ukrbotj73.04.367Vegetation Science, Ecology, Conservation
Territorial distribution of forest vegetation in the valley of the Siverskiy Donets River within the Forest-Steppe zone
Yarotska M.O.1, Yarotskiy V.Yu.2- 1 Homilshanski Lisy National Nature Park
- 156, Kurortna Str., Zadonetske, Kharkiv Region, 63436, Ukraine
- 2 G.M. Vysotskiy Ukrainian Research Institute of Forestry & Forest Melioration
- 8, Pushkinska Str., Kharkiv, 61024, Ukraine
Abstract
The Siverskyi Donets River is the largest river of the Left-Bank Ukraine. The distribution of forest vegetation in the valley within the Forest-Steppe zone has regular patterns which are represented on ecological and coenotic profiles. Forest communities of the Querceta roboris formation prevail in this region. These communities are confined to rich soils of the right bank and floodplain of the river valley. Forest communities of the Pineta sylvestris formation are the most characteristic for the sandy river terrace while Alneta glutinosae, Populeta tremulae, Saliceta albae are common for the floodplain. A gradual change of the oak forest associations is observed along the valley: typical associations of the Forest-Steppe zone are located on the southern border of the distribution range and associations common for the Steppe zone are located on the northern range border.
Keywords: forest vegetation, Siverskyi Donets, Forest-Steppe zone, dominant classification, formation, ecological and coenotic profile
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