Peculiarities of the park ecosystems naturalization in Tver region

Conditions of manor park establishing in Tver region in XIXth century are reviewed. Regional climate and soils have defined the peculiar composition of parks with densely planted trees and minimal open areas. At the end of XIXth century parks underwent the naturalization due to the destruction of the manor lifestyle. This period promoted the appearance of mixed plants assemblages and the increased stability of survived parks.