scholarly journals Dendroflora of the Nataliivskyi Park (Kharkiv region, Ukraine): taxonomic diversity and monitoring of plantations

2021 ◽  
Vol 89-90 ◽  
pp. 3-12
Author(s):  
Alla Hryhorenko ◽  
Yurii Klymenko
Keyword(s):  
Picea Abies ◽  
Tree Species ◽  
Quercus Robur ◽  
Woody Plant ◽  
Forest Type ◽  
Robinia Pseudoacacia ◽  
Taxonomic Diversity ◽  
Taxonomic Composition ◽  
Invasive Tree ◽  
Invasive Tree Species

To develop measures for the restoration of historic plantations and landscapes of the Nataliivskyi Park (Kharkiv region, Ukraine), the investigations of taxonomic composition and distribution of woody plant taxa, as well as structure of different landscape areas, were carried out in 2018–2019. The recent studies were realized according to the same protocol applied in 1997 by Y. Klymenko, and taking into account previously published data.In 1939, the dendroflora of the Nataliivskyi Park comprised about 100 taxa. Later, the number of taxa significantly decreased, and in 1950 the park’s dendroflora comprised only about 40 taxa. In 1997 there were 74 taxa reported. Since 1997, the taxonomic composition of the park’s dendroflora has been enriched by ten taxa and is currently represented by 84 taxa. Simultaneously, the number of valuable plants in the plantations decreased (only one or two plants represent some such taxa). Due to a bark beetle attack on drought-weakened trees of Picea abies and P. pungens, most of them withered. The area of allotments with Pinus sylvestris and Quercus robur remained almost the same, which indicates their stability. The area of allotments with the domination of such naturalized introducers as Acer negundo and Robinia pseudoacacia and the area of allotments with the domination of neither taxa have increased. In the landscapes, the redistribution of the types of areas appeared. The forest type of landscape became predominant, while the meadow type of landscape has almost disappeared.Hence, to restore historical plantings and landscapes, it is necessary to re-cultivate taxa represented here during the park’s heyday and remove invasive tree species. Although cuttings in protected areas are currently prohibited, our investigations showed that they might help preserve such valuable territories as Nataliivskyi Park.

scholarly journals Wood Surface Finishing of Selected Invasive Tree Species

2020 ◽  
Vol 71 (3) ◽  
pp. 271-280
Author(s):  
Matjaž Pavlič ◽  
Jure Žigon ◽  
Marko Petrič
Keyword(s):  
Tree Species ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Surface Hardness ◽  
European Beech ◽  
Surface Finishing ◽  
Horse Chestnut ◽  
Tung Oil ◽  
Invasive Tree ◽  
Invasive Tree Species

Due to their strong renewal power, the invasive tree species are spreading rapidly, especially in abandoned agricultural and forest areas and along traffic routes and water courses. One way of their restriction is the promotion of their use. In our research, we investigated surface finishing of wood of five selected invasive species in Slovenia, Box elder (Acer negundo L.), Black locust (Robinia pseudoacacia L.), Horse-chestnut (Aesculus hippocastanum L.), Honey locust (Gleditsia triacanthos L.) and Chinese sumac (Ailanthus altissima (Mill.) Swingle), and compared it with the finishing of the European beech (Fagus sylvatica L.) wood. For coatings, we selected one-component waterborne finish on acrylate-polyurethane basis, one-component solventborne finish on polyurethane basis and tung oil as a natural finish. Several surface properties were investigated. We proved that surface hardness, resistance to impact and adhesion were very much related to interactions between the coating and the substrate, while resistance to cold liquids was only dependant on the type of the finish. It was also shown that, in general, finishing of woods of selected invasive tree species was not problematic. The only exception was Black locust wood on which tung oil cured very slowly.

scholarly journals Machinability Research of the Most Common Invasive Tree Species in Slovenia

Forests ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 752 ◽  
Author(s):  
Miran Merhar ◽  
Dominika Gornik Bučar ◽  
Maks Merela
Keyword(s):  
Tree Species ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Visual Assessment ◽  
Horse Chestnut ◽  
Tree Of Heaven ◽  
Invasive Tree ◽  
Honey Locust ◽  
Invasive Tree Species

This article investigates the quality of the machining surface of the five most common invasive tree species in Slovenia, i.e., black locust (Robinia pseudoacacia L.), boxelder maple (Acer negundo L.), horse chestnut (Aesculus hippocastanum), honey locust (Gleditsia triacanthos) and tree of heaven (Ailanthus altissima). The machining tests were made according to the American Society for Testing and Materials (ASTM) D1666-17 standard, where the quality of the surfaces after planing, routing and turning were evaluated with visual assessment, and the area and profile roughness parameters were also determined on selected specimens. The results showed that boxelder maple, horse chestnut and honey locust can be machined very well in all the studied operations, with the best results in routing and a little less good by turning, whereas the tree of heaven had the best quality in planing, and the worst by turning. Among all studied tree species, the black locust had the worst quality in planing, but the quality at routing was very similar to other tested species. The research also showed that there is little or no significant relationship between the qualities of the various types of machining for tested tree species.

scholarly journals Elucidating the native sources of an invasive tree species, Acacia pycnantha, reveals unexpected native range diversity and structure

2013 ◽  
Vol 111 (5) ◽  
pp. 895-904 ◽  
Author(s):  
Joice Ndlovu ◽  
David M. Richardson ◽  
John R. U. Wilson ◽  
Martin O'Leary ◽  
Johannes J. Le Roux
Keyword(s):  
Tree Species ◽  
Native Range ◽  
Invasive Tree ◽  
Invasive Tree Species

Leaf litter of invasive Chinese tallow (Triadica sebifera) negatively affects hatching success of an aquatic breeding anuran, the Southern Leopard Frog (Lithobates sphenocephalus)

2012 ◽  
Vol 90 (8) ◽  
pp. 991-998 ◽  
Author(s):  
C.K. Adams ◽  
D. Saenz
Keyword(s):  
Dissolved Oxygen ◽  
Leaf Litter ◽  
Tree Species ◽  
Quality Parameters ◽  
Leopard Frog ◽  
Stages Of Development ◽  
Triadica Sebifera ◽  
Chinese Tallow ◽  
Invasive Tree ◽  
Invasive Tree Species

Chinese tallow (Triadica sebifera (L.) Small) is an aggressive invasive tree species that can be abundant in parts of its non-native range. This tree species has the capability of producing monocultures, by outcompeting native trees, which can be in or near wetlands that are utilized by breeding amphibians. Existing research suggests that leaf litter from invasive Chinese tallow reduces survival in larval anurans. The purpose of this study was to determine the effects of Chinese tallow leaf litter on anuran eggs. We exposed eggs of the Southern Leopard Frog ( Lithobates sphenocephalus (Cope, 1886)) at various stages of development to different concentrations of Chinese tallow leaf litter to determine survival. Eggs in the earliest stages of development that we exposed to tallow leaf litter died, regardless of concentration; however, some more-developed eggs exposed to tallow leaf litter did hatch. We determined that the greater the concentration of tallow leaf litter, the lower the dissolved oxygen and pH levels we observed. We suggest that changes in these water-quality parameters are the cause of the observed mortality of anuran eggs in our experiments. Eggs exposed to water containing tallow leaf litter with dissolved oxygen <1.59 mg/L and a pH <5.29 did not survive to hatching.

scholarly journals Alien and native woody plants in scattered vegetation in agricultural landscape

2020 ◽  
Vol 47 (2) ◽  
pp. 109-120
Author(s):  
Ján Supuka ◽  
Attila Tóth ◽  
Mária Bihuňová ◽  
Martina Verešová ◽  
Karol Šinka
Keyword(s):  
Tree Species ◽  
Woody Plants ◽  
Agricultural Landscape ◽  
Woody Plant ◽  
Robinia Pseudoacacia ◽  
Woody Species ◽  
Fruit Trees ◽  
Lycium Barbarum ◽  
Dominance Index ◽  
Acer Campestre

AbstractThe woody plant species composition has been evaluated in three cadastral territories of southwestern Slovakia, together in 77 habitats of non-forest woody vegetation (NFWV). A total of 43 tree species have been identified; 8 of them were alien and 5 species were cultural fruit trees. In total 20 shrub species were identified, out of which 3 were alien. Three woody species are classified as invasive according to the law in Slovakia: Acer negundo L., Ailanthus altissima (Mill.) Swingle, and Lycium barbarum L. They occurred only in 2, maximum in 4 of the evaluated habitats. The most occurring alien tree species Robinia pseudoacacia L. was generally identified in 58 habitats and in 48 habitats, with an incidence over 40% and dominance index of 70.6. The second most occurring alien tree Populus × canadensis had a dominance index of 8.3. The dominant native trees in NFWV were Acer campestre L., Fraxinus excelsior L., Quercus robur L., Salix fragilis L. with the dominance index of 1–5 only.

scholarly journals ФІТОТОКСИЧНІ ВЛАСТИВОСТІ ДЕЯКИХ ДЕРЕВНИХ РОСЛИН

World Science ◽  
2019 ◽  
Vol 1 (3(43)) ◽  
pp. 40-45
Author(s):  
Мегалінська Г. П. ◽  
Пакірбаєва Л. В. ◽  
Білик Ж. І. ◽  
Даниленко Є. В. ◽  
Гатальська Є. О.
Keyword(s):  
Picea Abies ◽  
Pinus Sylvestris ◽  
Quercus Robur ◽  
Betula Pendula ◽  
Robinia Pseudoacacia ◽  
Water Extract ◽  
Populus Tremula ◽  
Allelopathic Effect ◽  
Carpinus Betulus ◽  
Phytotoxic Activity

The results of the study of phytotoxic effects of water extracts from Pinus sylvestris L., Betula pendula Roth, Quercus robur L., Picea abies (L.) Karst. P. excelsa Link, Carpinus betulus L., Robinia pseudoacacia L., Populus tremula L., Crataegus submollis L. are presented. For а comparison of the phytotoxic activity of the investigated plants was used to measure the change in the intensity of the mitotic division, depending on the concentration of aqueous extraction of plant material (tangent trend curve of cytostatic activity). According to this parameter, the following row of phytotoxic activity of wood species can be ordered: Populus tremula, Betula pendula, Robinia pseudoacacia, Carpinus betulus, Acer platanoides, Tilia cordata, Pinus sylvestris. Water extract Quercus robur and Picea abies have discovered a phyto-stimulating effect. The results of the study allow us to discuss the possibility of introducing the parameter of the phytotoxicity coefficient to determine the allelopathic effect in the tree-tree system.

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