Accoding to environmental psychology, a level at which 50% of inhabitants are satisfiled with the amount of vegetation covered areas in 30%. The research studies were done in the central area of Ichikawa city to know about distributions of high trees and vegetation covered areas. And also we have researched about a elvel of satisfactory ratins regard to these vegetations by the questionnaires. Consequently, it is able to say that 75% of inhabitants are satisfiled with vegetation where are planted with vegetation where are planted with black pine (Pinus thungergii) even if the amout of vegetatin covered areas is below 20%.
