In connection with the increasing negative impact of invasive alien species on biodiversity and the environment in general, their research, as well as throughout the world, is relevant. The distribution of the Heracleum sosnowskyi and H. mantegazzianum of the secondary range on the example of the Kyiv agglomeration is investigated in the work. In our study we aimed to evaluate the possibility of spontaneous spread of giant hogweeds in the secondary range, adaptation of the species to the new conditions of the environment that favor to control of these species’ expansion and reduce the threat to the urban ecosystems and citizens’ health. We hypothesise that in the secondary range H. sosnowskyi and H. mantegazzianum settle sites with relatively high temperature (Tr), lightening (Lc), and soil moisture conditions similar to that in their natural range. 17 populations and four localities (sites) of H. sosnowskyi and H. mantegazzianum were studied. They were found within forest, meadow, riverine and ruderal plant communities. It is indicated that the advent species fully adapted to the conditions of the environment. The difference by ecological indicators Lc2 and Tm1 is pointed out. According to the results of our research, for the area of Kyiv urban agglomeration the growth of H. sosnowskyi and H. mantegazzianum is indicated in the plants communities of six classes. They spread most in ruderal plant communities of the: Robinietea, Artemisietea, Epilobietea classes. The studied species belong to invasive plant species in Ukraine and are characterized by extremely high effect on the environment and high invasive potential.

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The species composition, systematics, and ecological-coenotic features of the flora of the local landscape Feofaniya have been analyzed. In total, 650 species of vascular plants have been identified in this area, representing 337 genera and 94 families. It was found that the natural component of the flora represents 48.8 %, and synanthropic component represents 51.2 %. The aboriginal fraction includes 469 species from 252 genera and 77 families. Adventive flora is represented by 181 species from 131 genera and 51 families. The flora of the local landscape Feofaniya tends to the flora of broad-leaved forests, but due to synanthropization it has closer ties with the Ancient Mediterranean flora. It is characterized by prevailing of herbaceous plants (555 species or 85.3 %), hemicryptophytes (394 species or 60.6 %), plants with a tap root system (318 species or 48.9 %), with non-rosellate aboveground shoots (430 species or 66.1 %), with summer-green vegetation (621 species or 95.5%), and non-rhizomatous (206 species or 31.7%) type of underground shoots. Based on the analysis of the naturalization of alien plant species in the studied flora, the predominance of kenophytes (111 species) and epecophytes (90 species) was established. Such predominance is associated with significant recreational-touristic and other anthropogenic loads.

Syntaxa diagnosed by species of Elytrigia Desv. (Elytrigia repens (L.) Nevski, E. elongatа (Host) Nevski, E. intermedia (Host) Nevski, E. nodosa (Nevski) Nevski, E. pseudocaesia (Pach.) Prokud., E. trichophora (Link) Nevski, E. strigosa (M.Bieb.) Nevski, E. scythica (Nevski) Nevski), E. bessarabica (Săvul. & Rayss) Prokud. are inventoried based on analysis of literature. Syntaxonomical content of the communities includes 48 associations from 25 alliances, 17 orders and 13 classes. A lot of the syntaxa are common and widespread (Elytrigio repentis-Aegopodietum podagrariae Tüxen 1967, Urtico dioicae-Tanacetum vulgaris Kostylev in V. Solomakha et al. 1992, Artemisietum vulgaris R. Tüxen 1942, Elytrigio repentis-Robinietum pseudoacaciae Smetana, Derpoluk, Krasova 1997, etc.) or occur sporadically (Acini arvensis-Elytrigietum intermediae (Kukovitsa at al. 1994) Kukovitsa in V. Solomakha 1995, Salvio nemorosae-Elytrigietum intermediae Tyschenko, 1996, Goniolimoni taurici-Poetum angustifoliae Tyschenko 1996, Limonio-Festucetum pseudodalmaticae V. Solomakha et Shelyag-Sosonko 1984 etc.) in Ukraine. An absolute majority of the studied coenoses are in a state of dynamic expansion, with the exception of some relatively rare communities (Elytrigio trichophorae-Poetum angustifoliae (Kostylev et al. 1984) V. Solomakha 1995, Adonidi-Stipetum tirsae Didukh 1983, Drabo cuspidatae-Potentilletum geoidis Ryff 2000, Laserpitio hispidi-Heracleetum stevenii Korzhenevsky et Ryff 2002, etc.) that are constantly threatened by ecotope elimination. Most of the communities (23 associations) are dominated by Elytrigia repens that has wide ecological amplitude.

The production landscapes including territories of the plants, factories, mines, power plants, industrial zones are considered as a product of an industrial tehnogenesis, and tehnogenesis itself is considered as a process of landscape formation. Industrial landscape is regarded as production landscape formed under man-made cover - industrial building and remote equipment. As a functional unity, the production landscapes of a given technological cycle form an industrial-landscape zone. Production landscapes of sugar plants of Ukraine are considered. The diversity and specificity of morpholitogenic basis, soils and plant communities peculiar to different types of production landscapes of sugar plants are shown. The processes of demutation of different industrial landscapes of sugar plants, which were abandoned in different periods of XX century, have been studied. The stages of destruction of their man-made cover, transformation of terrain, change of soils and vegetation are described. On the basis of the field survey of 68 operating and abandoned sugar plants of Ukraine, 8 stages of destruction of industrial building and 4 phases of demutation of industrial landscapes have been identified.