engleski

Overview of invasive woody species in horticurtual areas of Karlovac

History of tree plantations in Karlovac dates back to the time when the planting of exotic species represented a statement of prestige. Today in the historic center of Karlovac, among solitary trees and tree alleys we can find 113 species. On that list we should emphasize species that are represented as a design element, but are also on the list of invasive species. The analysis of available data from the currently incomplete database “Cadastre of greenery of city Karlovac” has extracted 82 Robinia pseudoacacia , 93 Acer negundo and 3 Ailanthus altissima trees. Most of those trees are forming tree alleys, which are relatively old and require additional care. All mentioned woody plants regardless of their proved invasive character in some cases, seem not to pose a threat, because with regular maintenance it is possible to destroy all new individuals of all unplanned bread or sprouted plants on green surfaces, among them also individuals of invasive species. During this survey, it was noted that private areas are containing not only woody invasive species but also other invasive plant species. This situation is mostly result of inappropriate use or abandoning land, as well as ignorance or lack of interest of the green surface owners for analysed problem. In conclusion, the problem of invasive species in urban greenery is not significant if the lawn and tree care is properly planned. Due to the health status of those invasive woody species and time of planting, they would be, in the long term, replaced with other non-invasive tree species, according to the plan of local government.

invasive woody species, parks, urvan greenery, Karlovac

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