A survey on the light environment characteristics in outdoor open spaces of colleges and universities based on lightscape science
The detection rate of adolescent depression is increasing year by year.With the proposal of lightscape science,the use of campus outdoor open space to intervene in adolescent depression can provide new ideas for the prevention and treatment of adolescent depression.This paper analyses the light environment characteristics of open spaces under different green visibility conditions through field measurements of light environment indicators of outdoor open spaces with typical characteristics.The results show that:1)The relative spectral power distribution received by different outdoor open spaces varies in a consistent trend,peaking at 530 nm and reaching a trough at 760 nm;2)With the increase of green visibility in outdoor open space,the spectral power density value,horizontal illuminance and vertical equivalent illuminance of the eyes and other parameters received by the working surface show a decreasing trend,and the illuminance of the working surface under the same green visibility condition decreases in four directions,namely,east-south-north-west;3)There is no direct correlation between the colour temperature and the Ra value of the colour rendering index of the light environment parameters and the spatial green visibility.By clarifying the relationship between"light"and"environment"in outdoor open space,we can provide a data base for the next step of analysing the relationship between"light""environment"and"people".
lightscape scienceoutdoor open spacegreen visibilitylight environment parameters in landscape