Usually ecological factors effect on each other slowly and through the time. For example tree planting (projects) will take a long time so that visible clearly and has significantly reflected in landscape. This time (after maturing the new introduced plant- 10 to 15 years) local and indigenous plant species could be affected. But because of time limitation we have to monitor and assessment the effect of new introduced plant after 4 years which is active in vegetative growth period on indigenous and natural site vegetation. Therefore is this possible and valuable?