Department of Landscape Architecture, Poznań University of Life Sciences, Poznań, Poland.
Department of Entomology and Environmental Protection, Poznań University of Life Sciences, Poznań, Poland.
PLoS One. 2021 Jan 20;16(1):e0245398. doi: 10.1371/journal.pone.0245398. eCollection 2021.
Robinia pseudoacacia L. is an interesting example of how one plant species can be considered invasive or useful depending on its environment. In the past this tree species was planted for decorative purposes and for wood in Poland. For many years it was recommended in poor and degraded habitats because it facilitated late-successional plant species. The aim of this study was to verify if black locust can still be regarded as a resistant tree species in urban greenery. The health condition of old tree specimens growing along streets and in parks was compared. The occurrence of pests and pathogens on R. pseudoacacia trees was assessed and the content of mineral elements in leaves was examined. The research results showed that the health of black locust trees growing in the urban environment in Polish cities, especially along streets (in comparison to park sites), deteriorated significantly due to the interaction of harmful biotic and abiotic factors. Increased level of toxic metals (Fe, Zn, Pb, Mn and Cd) in plant tissues and the accumulation of pests and pathogens negatively influenced the health of R. pseudoacacia.
刺槐是一个有趣的例子，说明了一个植物物种如何根据其环境被认为是入侵性的或有用的。过去，这种树种被种植用于装饰目的和波兰的木材。多年来，它在贫瘠和退化的栖息地被推荐，因为它有利于后期演替的植物物种。本研究的目的是验证刺槐是否仍然可以被视为城市绿化中的抗性树种。比较了生长在街道和公园的老树标本的健康状况。评估了刺槐树上害虫和病原体的发生情况，并检查了叶片中矿物质元素的含量。研究结果表明，由于有害生物和非生物因素的相互作用，生长在波兰城市城市环境中的刺槐树木，特别是生长在街道上的刺槐树木（与公园相比），其健康状况显著恶化。植物组织中有毒金属（铁、锌、铅、锰和镉）水平的升高以及害虫和病原体的积累对刺槐的健康状况产生了负面影响。
