Marchenko A. Bio-ecological resistance of flower garden-ornamental plant communities of the Ukraine Forest-Steppe urbo-ecosystems

The dissertation paper presents the studies’ results of flower garden-ornamental plant communities bio-ecological resistance in the landscaping structure of urbanized ecosystems of the Ukraine forest-steppe zone to improve the complex green zone of settlements and to create phytocenosis cultures with high phytomeliorative properties. There was evaluated phytopathological state of the flower garden-ornamental plant communities in urbanized ecosystems of the forest-steppe zone and there was established the pathogenic mycobiota species composition, as the main natural causes of disturbances of the complex green zone and the compositional integrity of the flower garden phytocenosis cultures, which are intensely revealed due to negative action of anthropogenic load. There were suggested principles, criteria and indicators of diagnostics of anthropogenic transformation of urbo-ecosystems at the levels of change detection: organ, plant, taxon (species), biogroup (flower garden-ornamental plants; phytopathogenic complex; consortic links «pathogen-flower garden-ornamental plants»); phytocenosis cultures, urbo-ecosystem. There was developed method of synecological determination of character and indirect estimation of the degree of phytocenosis cultures disturbance by the spread of phytopathogenic mycobiota, change of the consortic linkages «pathogen-flower garden-ornamental plants». The technique is based on the dependence of the species, systematic and trophic structure and development of the phytopathogenic complex on changes in the environment condition and structure of substrates, biotopes of disturbed phytocenosis cultures in the conditions of recreation and anthropogenic factors. There was substantiated the species composition of phytopathogenic mycobiota, which can be used for myco-indication: anthropogenic, especially recreational disturbance of flower graden phytocenosis cultures.