期刊
ENVIRONMENT AND BEHAVIOR
卷 48, 期 4, 页码 607-629出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0013916514552321
关键词
dose-response curve; tree cover density; stress recovery; Visual Analog Scale; 3-D visual media
资金
- USDA Forest Service [11-DG-11132544-333]
Although it is well established that viewing nature can help individuals recover from a stressful experience, the dose-response curve describing the relationship between tree cover density and stress recovery is totally unclear. A total of 160 participants engaged in a standard Trier Social Stress Test to induce stress. Participants were then randomly assigned to watch 1 of 10 three-dimensional videos of street scenes that varied in the density of tree cover (from 2% to 62%). Participants completed a Visual Analog Scale questionnaire at three points in the experiment. Analysis revealed a positive, linear association between the density of urban street trees and self-reported stress recovery, adjusted R-2 = .05, F(1, 149) = 8.53, p < .01. This relationship holds after controlling for gender, age, and baseline stress levels. A content analysis of participants' written narratives revealed a similar but even stronger association. These findings suggest that viewing tree canopy in communities can significantly aid stress recovery and that every tree matters.
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