Analysis of the impact of climate change on the woody plants vegetation in the Botanical Garden of the Ukrainian National Forestry University
Climatic changes have a significant impact on the growth and development of ornamental plants in the urban environment, the climatic conditions of the territory have a great impact on the ecological state of plants and determine their ability to adapt and develop in a certain region. When assessing...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Ukrainian National Forestry University
2024-10-01
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| Series: | Наукові праці Лісівничої академії наук України |
| Subjects: | |
| Online Access: | http://fasu.nltu.edu.ua/index.php/nplanu/article/view/804 |
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| Summary: | Climatic changes have a significant impact on the growth and development of ornamental plants in the urban environment, the climatic conditions of the territory have a great impact on the ecological state of plants and determine their ability to adapt and develop in a certain region. When assessing the adaptive capacity of plants, the introduction of phenological observations has found wide application, providing a more in-depth study of the biological characteristics and ecological properties of plant organisms. The purpose of our paper was to study the influence of weather and climate changes on the timing of the phenophase of the growing season of ornamental woody plants. To analyze climate changes, average monthly quantitative indicators of air temperature and precipitation were calculated using archive data from the Lviv airport meteorological station.
The conducted analysis of the dynamics of atmospheric air temperature and the amount of precipitation in Lviv in the period from 2010 to 2023 showed a tendency towards increased droughts, an increase in the number and duration of hot periods. The process of plant metabolism is closely related, first of all, to the temperature factor, and the weather conditions in 2023 were characterized by a mild winter with predominantly positive average daily air temperature values, which caused the growing season of some plants to begin too early - as early as January and early February. Sharp fluctuations in average daily temperatures and frequent frosts in the spring period caused a delay in the beginning of the growing season of most woody plants. The hot summer-autumn period with a significant amount of precipitation was the cause of the fact that the completion of the growing season of woody plants in 2023 occurred with a delay and with a significant range. All this caused an increase in the duration of the growing season for most plants and, in all likelihood, reduced the frost hardiness of these plant species.
In general, phenological observations according to the accepted methods were carried out on 111 trees and shrubs of the Botanical Garden of the UNFU during the 2014-2023 period.
In particular, during the 2022–2023 period, the peculiarities of the influence of climatic factors on the beginning and the end of the growing season of woody plants and the duration of the growing season of woody plants were investigated. Studies have been conducted of the influence of weather and climatic factors in Lviv region on changes in the phenorhythms of the growing season of tree and shrub species. It was found that plants of phenogroups of very early and early onset of growing season began their growing season by far early due to abnormally warm winter months. Sharp drops in average daily temperatures and frequent spring frosts delayed the beginning of the growing season of other woody plants. The completion of the growing season of woody plants in all phenogroups occurred with a significant delay. The analysis carried out is of practical importance for the introduction and effective use of introduced species of woody plants in landscaping to create biogroups that are resistant to changes in climatic conditions. The materials of the conducted pheno-observations can be used for the introduction and acclimatization of plants in different regions of Ukraine. |
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| ISSN: | 1991-606X 2616-5015 |