When searching the procedures forming natural spaces we meet spontaneous processes and their management. How to manage the ecosystems in towns without the disturbance of their ecological integrity? Or to what an extent disturb this integrity of ecosystems? Ecosystem integrity is dependent on the number of elements in ecosystem, which are interrelated and they ensure their well operation. Not removed perished material, high diversity of flora and fauna as well as the presence of mosquito’s and ticks are the acceptable of integrated ecosystems. They are hardly acceptable phenomena for people living in towns. We have two alternatives. Either we accept the fragments of spontaneous ecosystems in their ecosystem complexity as the most vital natural parts of towns and we shall risk aesthetic, economic and hygienic conflicts or such a nature will be removed in an effort to prevent possible conflicts.