GENERAL PROBLEMS
Aim. The aim is to reveal the need and relevant directions for the implementation of the concept of sustainable development in relation to the efficiency of transport and logistics activities. Methods. The methodology of research and development includes the analysis and adaptation of the experience in the areas of sustainable urban development and their transport, environmental impact of transport, planning and organizing passenger transport in smart cities, theories of utility and efficiency. In order to analyze the state of the investigated problem, modern scientific publications of Russian and foreign scientists were used. Results. We considered the modern understanding of the concepts of sustainable development and smart cities, the globalization of their use by the executive authorities in developed countries to improve the economy and quality of life. Were also indicated the main problems of the transition to sustainable development, characteristic of Russia. Various examples of the implementation of the concepts of sustainable development and smart city, the use of modern information technologies and methods for evaluating transport and logistics projects were given. The environmental consequences of using the concept of sustainable development, as well as the need to transform the land use policies in cities were indicated. The approaches to assessing the efficiency of transport and logistics systems and their development projects were considered. The directions of improving the human resourcing for sustainable development were identified. Conclusions. The main directions of succeeding in sustainable urban development and implementation of projects for the development of the transport systems were established. Recommendations were formulated to ensure the planning of sustainable development and building of a methodology to evaluate the efficiency of transportation and logistics as well as the projects for their improvement.
ECOLOGY OF ANIMALS
Aim. The aim of the research is to study the potential nesting sites of the Spanish sparrow (Passer hispaniolensis) on the northwest coast of Crimea. Methods. Material was compiled during 2016-2018. The generally accepted methods of road and foot route census study were applied. Nesting stations were explored: nests of storks, birds of prey and corvids, forest belts and reed beds. Results. On the basis of research, the presence of Passer hispaniolensis in the north-western Crimea, in particular, within the borders of the Lebyazhy Islands («Swan Islands») specially protected natural area, has been established. It is revealed that for nesting, this species of sparrow prefers the areas close to fields and is not often found in human settlements. During the nesting period, an increase in the number from 15 to 45 pairs was noted. The greatest number of breeding pairs of spanish sparrow is found in the nests of the white stork. Late arriving birds form colonies on trees in close proximity to stork nests. Conclusion. Nesting of Passer hispaniolensis is most likely due to changes in the hydrological regime and land use structure, since rice crop rotation (until 2014) has been replaced by other grain crops (barley, wheat) and tilled crops (sunflower, maize). Thus, at present, the breeding ornithofauna of the protected area is represented by 92 species of birds.
Aim. It is not possible to study the mechanisms of formation and functioning of the Caspian coastal ecosystems without analyzing the hydrobiological situation of the surrounding water area as a whole. In this regard, the main objective of the research is to study the biodiversity and the quantitative assessment of the zooplankton communities of the coastal waters of Tyuleniy Island and its lagoon areas. Methods. Zooplankton samples were selected seasonally using quantitative methods in order to assess the hydrobionts and current recommendations for material processing. This work represents a continuation of our research launched in 2015 in the coastal area of Tyuleniy Island and its inner lagoon. The qualitative, quantitative and seasonal nature of the distribution of zooplankton in the investigated area of the sea in modern conditions was described. Results. It is shown that the open areas of the island represent a rich taxonomic structure and high density, consisting of a mixed freshwater and brackish-water hydrobiont complex. Conclusions. In general, the zooplankton complex of the Tyuleniy Island water area is a fairly stable ecosystem with a well-developed plankton community. However, for a more complete assessment of its state, seasonal dynamics, and potentials of its food supply for the fish population in the water area, long-term comprehensive monitoring studies are needed.
GEOECOLOGY
ECOLOGICAL TOURIZM AND RECREATION
BRIEF PRESENTATIONS
Aim. Copper-nickel deposits are located all over the world. A large amount of nonmetalliferous raw materials is formed, when they are developed. It moves into dumps and creates environmental risks for the environment. In the dumps magnesium-containing rocks prevail, which must be disposed of. The purpose of the work is to study the possibility of their use in the production of building materials. Methods. The chemical analysis was carried out by gravimetry, photometry, and atomic-absorption spectroscopy. The mineral composition was studied using X-ray phase analysis. The mechanical parameters were determined on a test hydraulic press. Results. It is established that the crushed stone from magnesiumbearing rocks is of high quality and can be used as a large aggregate in the production of concretes. It is shown that the concrete, containing crushed stone from ultrabasic rocks - verlites show the most compression strength. The lowest values has ordinary concrete on granite crushed stone. The type of hardening conditions also affects the strength of the resulting material. Sand from the sifting of crushing rock mass has angular shape of the grains and a mineral composition as in the parent rock. This contributes to the design of a dense structure of concrete stone, which increases its strength by more than 10%. Main conclusions. The use non-metalliferous raw materials will reduce the volumes of waste rock formed during the development of mineral deposits. In this case, it is possible to obtain a finished commodity product - crushed stone from magnesium-containing rocks and sand from their crushing. This will solve environmental, economic problems, as well as produce the necessary building materials for their own needs.
Aim. The aim is to identify the differences in the accumulation of manganese, zinc, copper and molybdenum in the hair of farm animals (cows and goats) and their spatial differentiation in the valley of the Lower Dniester. Methods. Sampling and sample preparation were carried out in accordance with generally accepted methods. The determination of metal content in hair samples was carried out in accredited laboratories using atomic absorption spectrometry (AAS) and Inductively Coupled Plasma Spectroscopy (ICP-S). Results. For the first time, data are presented on the content of biogenic metals (manganese, zinc, copper, molybdenum) in the hair of the tail of black-and-white cows and Russian White and Saanen goats in the valleys of the Lower Dniester. Conclusions. It is shown that the concentration of trace elements in the hair of farm animals reflects the relative homogeneity of the biogeochemical conditions of the Lower Dniester valley. It is established that cows and goats are characterized by a sharply differing elemental status for the studied metals estimated on the basis of an analysis of their concentrations in the hair of the tail. At the same time, the effect of hair color on the content of elements was revealed only for molybdenum in cows, and for goats there were no significant interbreed differences in metal concentrations.
Статьи
ISSN 2413-0958 (Online)