https://sci.ldubgd.edu.ua/jspui/handle/123456789/15472 Sun, 12 Apr 2026 16:19:47 GMT 2026-04-12T16:19:47Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/15991 Title: Effect of vertical and horizontal temperature gradient on growth and development of Thuja occidentalis 'Smaragd' Authors: Кучерявий, Володимир Панасович; Кучерявий, Володимир Сергійович; Босак, Павло Володимирович; Попович, Василь Васильович Abstract: The adaptive potential of plants in urban environments, due to the influence of factors such as air pollution, radiation and specific microclimate features, is still poorly understood. In our study, we focused on the vertical and horizontal temperature gradients of Th. o. 'Smaragd', which is common in the urban landscape of Lviv. The study was carried out in one of the most environmentally loaded cities in western Ukraine. In conditions of positive vertical and horizontal temperature gradients (yard), it shows good apical (19.5 cm) and lateral (6.0 cm) growth. This indicator is much lower in street planting conditions, 12.0 cm and 2.1 cm, respectively. According to the research results, three groups of tree vitality were identified: healthy, depressed, and severely depressed. The first group includes all individuals of the cultivar growing in optimal edaphic and climatic conditions of the courtyard, and the second and third groups include those growing along the sidewalk under the negative influence of vertical and horizontal temperature gradients. A vitality scale for Th. o. 'Smaragd' was developed using both biometric indicators and visual inspection. A negative gradient will appear when the temperature of the point that is compared to the starting point is higher, and vice versa, the gradient will be positive when the temperature of the second measurement point is lower than the starting point. The gradient will be zero when there is no temperature difference between the two measurement points. Thu, 05 Jun 2025 00:00:00 GMT https://sci.ldubgd.edu.ua/jspui/handle/123456789/15991 2025-06-05T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/15834 Title: Організація захисту навколишнього середовища внаслідок військових дій ( на прикладі деградації ґрунтів ) Authors: Щесняк, Аліна Олександрівна; Босак, Павло Володимирович; Рихва, Володимир Володимирович; Павлюк, Юрій Емільович Tue, 01 Apr 2025 00:00:00 GMT https://sci.ldubgd.edu.ua/jspui/handle/123456789/15834 2025-04-01T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/15596 Title: ECOLOGICAL AND BIOLOGICAL ROLE OF LIGHTING IN THE DEVELOPMENT AND SEASONAL DYNAMICS OF NORTHERN WHITE-CEDAR (Thuja occidentalis L.) NEEDLES AND ITS ORNAMENTAL FORMS IN LVIV Authors: Кучерявий, Володимир Панасович; Геник, Ярослав В’ячеславович; Кучерявий, Володимир Сергійович; Попович, Василь Васильович; Босак, Павло Володимирович; Шуплат, Тарас Ігорович Abstract: For the research, we selected urban green spaces with a simple and complex planting rhythm, where we examined the effects of light on the results of competition between individuals, according to the nature of the light flow: from the top to the bottom of the crown and towards the open space. The differentiation of the columnar Thuja occidentalis L. in terms of tree thickness distribution was revealed, and a forecast was made for the further development of plants that have lagged behind in growth and should be removed from the row in a timely manner so as not to reduce the aesthetic compositional integrity of the green walls. In order to clarify the role of light in the competition individuals for its intensity, the relationship between the level of lighting of the crown of Thuja occidenatlis (Th.o.) “Fastigiata” in summer and autumn and their growth was examined. The role of lighting in changing the colour of coloured cultivars and the place of chlorophylls a and b, as well as carotenoids in this process were studied. In the shaded crowns of Th.o. “Aureaspicata” and Th.o. “Aureovarigiata”, the golden colour changed to light green due to a decrease in carotenoid content. At the same time, the winter brown-green colour was a consequence of an increase in the concentration of carotenoids in the cells. Understanding of the statics and dynamics of the colour of decorative forms of northern white-cedar makes it possible to select cultivars with the most decorative colour for various garden and park compositions. Mon, 31 Mar 2025 00:00:00 GMT https://sci.ldubgd.edu.ua/jspui/handle/123456789/15596 2025-03-31T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/15473 Title: Оцінка екологічної безпеки ґрунтів Хмельниччини на основі аналізу хімічного складу та кислотності Authors: Щесняк, Аліна Олександрівна; Босак, Павло Володимирович; Ковальчук, Наталія Павлівна; Соколов, Сергій Олександрови Sat, 01 Feb 2025 00:00:00 GMT https://sci.ldubgd.edu.ua/jspui/handle/123456789/15473 2025-02-01T00:00:00Z