EN
Article is concerning analysis of the impact of unfavorable environment conditions connected with construction work on tree development. Analysis were carried out on soil compaction influence on root system shape and development, influence of filling and cutting of the soil level connected with loss of root tissues and water stress. Those studies were conducted in the context of the morphology and shape of root system in urban conditions. Work contents tables with specified critical thresholds of tree resistance to change of ground level in relation of different types of soil. The conclusions of the analysis should be used at all stages of design and organization of building process, containing the stage of project work, tree management and tree maintenance.