Decline in the diversity of the dendroflora of Lublin on the example of housing estates built at the turn of the XXth and XXI century

Motives: The need to maintain species diversity in cities has been widely reported in the literature. Among other things, it promotes plant resistance to climate change, reduces susceptibility to diseases and pests, and increases the visual attractiveness of the landscape. The proper design of tall vegetation is particularly important in residential areas, where it affects the quality of life of residents. Meanwhile, the degradation of green spaces in cities has been observed. Aim: The aim of this study was to determine the condition of greenery in Lublin’s housing estates and to describe changes in its formation in different time periods. Results: In Lublin, a decrease in the number and diversity of tree species in residential areas was observed, and it was greatest in newer neighborhoods. It is necessary to recognize this phenomenon and take measures to stop this process, e.g. by introducing new planting standards to ensure good living conditions, protect biodiversity, and create an efficiently functioning system of green areas.