Solonenko, A. M. та Podorozhniy, S. M. та Bren, O. G. та Siruk, I. M. та Zhukov, O. V. (2021) Effect of stand density and diversity on the tree ratio of height to diameter relationship in the park stands of southern Ukraine. Ecologia Balkanica, 2 (13). с. 173-197.
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Urban parks provide important ecological functions and are a factor in the well-being of urban residents. The article investigated the influence of factors on the dependence of tree height on tree diameter in a park stand. The role of community diversity as a factor that reduces the risk of tree damage was assessed. The role of tree damage, density, and stand diversity as predictors in the dependence of tree height on its diameter was revealed. The hypothesis of the scale dependence of the influence of stand density on plant growth was tested. The park inventory recorded morphometric data on 814 trees. The information collected was presented in a geographic information database. The number of plants that are within a radius of 3, 5, 7, 10 meters was determined for each of the recorded plant specimens. The diversity according Shannon of the plant community was estimated based on the information on the species composition of plants within a radius of 10 meters from the focal plant. The plant community in the park was represented by 27 species of trees and shrubs. The most frequent species was U. caprinifolia. The age of plants in the community was positively correlated with the diversity of vegetation in the surroundings of a particular plant. About 74.1% of the trees were found to have the signs of pathological damage. The best model to explain tree damage was a model that included as predictors plant species, its age, the diversity of the surrounding stand, and its density estimated from a 7-m radius sampling site. The GLM approach allowed to reveal that 83% of tree height variation can be explained by the information on tree and shrub species, plant condition (healthy plant or damaged one), its diameter and stand density. The stand density and the square of this index were found to be statistically significant predictors if the density was calculated for a sample area with a radius of 7 meters. A quadratic form of the dependence indicates the presence of the maximum of the function. The calculations showed that the first derivative of the quadratic function is equal to zero at a density of 9.3 individuals in a sample area with a radius of 7 meters, or 3.0 plants per 100 meters2.
| Тип елементу : | Стаття |
|---|---|
| Неконтрольовані ключові слова: | recreation, allometry, park management, ecosystem services, optimal density |
| Теми: | Q Наука > Екологія > Біорізноманіття Q Наука > Екологія > Охорона природи Q Наука > QK Ботаніка S Сільське господарство > S Сільське господарство (Загальне) S Сільське господарство > SD Лісове господарство. Деревництво. Лісівництво |
| Підрозділи: | Хіміко-біологічний факультет > Кафедра ботаніки і садово-паркового господарства |
| Користувач, що депонує: | Кафедра ботаніки і садово-паркового господарства |
| Дата внесення: | 04 Січ 2022 14:24 |
| Останні зміни: | 04 Січ 2022 14:24 |
| URI: | http://eprints.mdpu.org.ua/id/eprint/12581 |
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