Primary Contrastive Study of Restorative Effect between Green and Grey Environment in City

Through contrastive study of restorative effect between green and grey environment in city, this paper discusses the effects and speed of the two kinds of environment on individual physical and psychological resource to support future native study on restorative effect both in theory and application. Based on extensive survey on contemporary relative literatures, this paper designs a field test with single factor using repeated measures. 14 male students were chosen and randomly separated into 2 groups. One group was exposed to the stimulators of green environment, and the other one in stimulators of grey environment. The test of word association task was performed to bring the condition of stress, and Positive and Negative Affect Scale (PANAS) was used to show the emotional fluctuation of the subjects under different conditions. Salivary Amylase Activity (SAA) was utilized as the physical index to detect the parasympathetic system activity directly. Results show that the green space has better restorative effect for physical resource, while the grey space is lack of this function. The green space in city has significant restorative effect for psychological resource, while the grey space tends to deplete the psychological resource.