Browsing by Author "Olha Vasylenko"

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    Biodiversity and landscape diversity as indicators of sustainable development
    ((ISCMEE 2021). Odesa, Ukraine, 2021-04-16) Sergiy Sonko; Nadiya Maksymenko; Olha Vasylenko; Viktoriia Chornomorets
    The main purpose of the article is to substantiate the restrictive content of a sustainable development concept and to show how it is implemented in the theoretical foundations of the agriculture. Today, the initial restrictive content of the concept has changed beyond recognition in a continued large-scale consumption of natural resources. Consequently, the very concept of sustainability requires clarification. It is necessary to look for its signs in natural ecosystems, where the main indicator is life itself, maintained by the biosphere in a state of stable dynamic equilibrium. Introducing monoculture, people deliberately impoverish biodiversity in agroecosystems, by transforming natural into agro-landscapes. Adaptive technologies could be the means to achieve a stable balance. In that case, the mechanisms of matter-energy metabolism in agroecosystems will be closer to the biosphere. The article lays out a set of measures through which the use of nature can be closer to general scientific ideas of sustainability.
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    Peculiarities of the Primary Process of the Soil Formation on the Mine Rock Dumps under the Influence of Biotic Factors
    (Journal of Ecological Engineering, 2022) Larisa Kucher; Oleksandr Zamorskyi; Olena Manzii; Serhii Poltoretskyi; Olha Vasylenko; Igor Krasnoshtan; Vira Boroday; Olena Voitsekhivska; Volodymyr Voitsekhivskyi; Evgeniy Beregniak
    Open pit coal mining is a global problem, because mines occupy large areas that completely change the relief, dramatically affect ecosystems, as a result of which they lose most of their functions, and a significant part of the fertile soil degrades and becomes unsuitable for agricultural activities. In the presented work, the initial stage of soil formation was studied, the parameters of the granulometric composition of uneven-aged rocks of Donbas mine dumps, their nutritional regime, and the species composition of soil algae were studied. Samples were taken from three different-aged rock dumps of the mines: ˮSouth-Donbaska - 3ˮ (rock storage for 40 years); ˮSouthDonbaska - 1ˮ (storage of rock for 52 years), ˮTrudovska №5 - bis (storage of rock for more than 100 years). The agrochemical parameters of the rock were determined in the samples: pHwater, humus, nitrate nitrogen, mobile phosphorus, exchangeable potassium, particle size distribution. The determination of granulometric fractions of 0–20 cm layer of rock dumps of the mines shows, along with the age, a potential increase of the dump of fine fractions and a decrease in the fraction of stones from 83% in the dump of the South-Donbaska mine, and by 30 to 64.7% in the dump of the Trudovska No. 5-bis. The proportion of the clay fraction is not high in all dumps and it does not exceed 1%, but its appearance indicates the initial stage of a soil structure formation. Soil formation begins with the colonization of mineral rocks with soil algae. The species composition of soil algae, the quantitative accounting were determined by microscopy of a freshly selected soil sample and by cultural methods. Algae species were determined by determinants. In the rock dump, the structure of algal groups becomes more similar to, their structure in the background soils of the territory. The ominance of the representatives of Chlorophyta and Cyanophyta in the rock indicates the steppe process of soil formation. The data obtained contribute to the expansion of the ecological and biological understanding of the initial stages of the formation of soil cenoses.