H. Hovhannisyan, G. Nersisyan;                             Procedia Environmental Sciences, Elsevier,                             2017,                             37C,                             pp. 474–482;                             DOI: 10.1016/j.proenv.2017.03.020                        
This research was designed to develop a complex program of scientifically grounded greening of Armenia's cities and her capital – Yerevan with a view of assuring ecological tolerance, longevity and a functional use of urban plants. It comprised a study of levels and character of pollution of different environmental compartments, examination of condition of plants and determination of species composition of urban trees and their ecological tolerance. A complex urban greening program prepared by us in the result of this research allows to efficiently manage the quality of urban environment as proved on the example of Yerevan.
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