The article discusses one of the waste management areas – the use of fertilizer properties of chemical compounds that make up various types of production waste. The salt aluminum slag of the Mtsensk metallurgical plant AOOT Non-ferrous Metals and Alloys was chosen as the object of pollution. The presented studies indicate that the presence of macro-and microelements in the composition of slag fertilizers significantly increases the value of these fertilizers and partially solves the problem of complex application of the necessary elements into the soil [10]. The effectiveness was evaluated of the fertilizing properties of the salt screenings of aluminum slag, vermicompost and zeolites when using them as a part of nutrient soils for growing cucumber [8]. An increase in the toxic load for the analyzed period was established [7]. Also, all the studied forms and types of fertilizer nutritional compounds have a physiological effect, increase the growth and development of cucumber plants, product quality, and contribute to plant resistance to adverse environmental conditions and to the production of environmentally friendly products [13]. The effectiveness has been proved of the method of using plant cell juice electrical conductivity to assess the physiological state at different growth phases as a reaction to the fertilizer levels of production waste and natural minerals [9].

The authors of the article considered a relevant problem of using perennial plants in landscaping Russian cities in connection with their unique climatic conditions, existing traditions in landscaping and bad environmental conditions. For the natural and climatic conditions of the forest-steppe zone of the Russian Federation, a selection of perennial flowering plants that are resistant to the urban environment according to the criteria of low maintenance, shade tolerance, drought resistance and undemanding soil fertility has been carried out. When choosing perennial plants, the preference was given to the representatives of the local flora, large in height and stable for a long time in decorativeness. In this case it is possible to use the developed assortment when creating sustainable floral compositions in cities, meeting modern requirements of aesthetics, environmental friendliness and economy of the landscape objects. The design projects developed by the authors provide with the creation of modular flower beds of round, triangular, square shapes in the form of mixborders combined of large-sized flowering plants that easily fit into any configuration of the existing flower garden and are assembled by rhythmic repetition of the modules or their combination.

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The localization and intensity of technogenic flows of chemical elements causes the formation of technogenic anomalies and biogeochemical provinces with varying degrees of environmental distress. The purpose of the research is environmental assessment of the effectiveness of the fertilizing properties of metallurgical production wastes in nutrient soils. Studies have been conducted to determine the degree of influence of the fertilizing effect of various types of nutrient soils based on soil, slag and zeolite on germination, growth and development of seedlings of small-seeded lettuce. Seed germination, plant growth and development are affected by the water-physical properties of soils and the number of available macro and trace elements. Visual and computerized assessment of the color range of the lettuce leaves is proven to be effective to assess the level of soil contamination based on the intensity of nutrient consumption by plants.

The authors analyzed the territory of the squares in Orel to determine the influence of the types of spatial structures on the features of the functioning of the landscape objects, forecast the stability of the studied landscape and assess the dynamics of urban ecosystems according to the state of woody vegetation. In order to develop a scientifically-based design of sustainable urban ecosystems and to reconstruct urban objects of landscape architecture, a method for analyzing the territory of squares on the selected contours of the types of spatial structures (TSS) is proposed, which allows to identify positive and negative factors that affect the development of design solutions. It is found that for the majority of squares whose age of plantings is close to the limit in urban conditions, the closed type of spatial structure is typical. As a result of the analysis of the placement and the ratio of the types of spatial structures for a comprehensive assessment of territories, it was found that the closed type of spatial structure caused a decrease not only in the attractiveness, but also in the sanitary and hygienic role of landscape architecture objects. The most favorable conditions for the sustainable functioning of tree stands in urban squares are semi-open and open spaces.