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Abstract:
In order to evaluate municipal effluent in irrigation of green spaces an experiment in the Marvadasht sewage treatment plant with panting 14 tree species using effluent and bore hole water with trickle systems (bubbler) for 26 months was conducted. A monitoring program including: evaluation of water quality, trees survival and signs of possible disease was scheduled. This paper deals with water quality assessment and the concentration of some elements affecting on the health of trees and percentage of survival. Results showed the applied effluent was a medium effluent in terms of organic matters, relatively salty, and with medium risk from SAR and Cl and also with the low risk from N and P point of view. E.Microtica with 99% decline was the most successful tree and E.Camaldulensis with 97%, Acacia with 97%, Robiniy with 95%, Fresinos with 94% decline were the other successful trees which had more than 90% decline. The concentration of Boron in the leaf of different