Study On Microclimate Environment Effects Of Campus Green Space

The change of ecological environment makes people more and more attention to urban green space in the ecological system, the role of the main body of urban green space as a natural productivity, not only can inhibit environmental degradation brought about by the threat to human health, more important is that it can be through the regulation of urban local microclimate environment, improve human comfort, and provide a healthy and comfortable living environment for people.This article in the urban green space at home and abroad for reference, the microclimate environment effect and based on the study of the influence of the human body comfort, with the typical campus green space as an example, the selection of different underlying surface and different plant green space types, respectively, in hot summer and cold winter, based on the green type of the air temperature, relative humidity, and light intensity on the climate characteristics of field measurements and comparative analysis of the correlation of microclimate environment effect, and combined with various types of campus green space for the improvement of the human body comfort degree, it is concluded that scientific and rational campus green space types, provide theoretical reference for campus green space planning and construction. Through the test to get the following conclusion:1. Underlying surface different campus green space, in the high temperature weather, relative to the rigid pavement square, various types of green space can show the microclimate environment effect, the vegetation coverage of high forest microclimate regulation to the environment ability is best. During the day in the summer, woodland and square sample maximum temperature difference value of up to 2.53 ℃; 12:00 noon time sample light intensity difference of maximum, without vegetation of forest road(lx) 68116.67 is undergrowth vegetation coverage of green space(2220.22 lx) 30 times; In terms of temperature, relative humidity and light intensity both had significant difference.2. Relative to the playground without vegetation, with tree species of broadleaf trees campus green space types adjust better for the environment reduces the maximum temperature 2.76 ℃, the effect on the increase of relative humidity is 19.45%; PM in the afternoon time, sample(87464.3 lx) of light intensity on the playground is a bamboo forest(1086.6 lx) about 80 times. Through the multiple comparison analysis, lawn green no significant effect on the improvement of the microclimate environment effect, other types of green space were significantly.3. Each type of campus green space in the winter low temperature environment, still can adjust microclimate environment effect. Based on green space environment of internal air temperature, relative humidity and so on the comprehensive analysis of the climate characteristics, with tree species of evergreen green space types of regulating effect is best, in winter during the day, can slow down the change range of air temperature, at the same time increase the internal relative humidity of the environment. Relative to the playground without vegetation, give priority to with bamboo plants and evergreen regulating role of the campus green space on the microclimate environment effect reached significant difference.4. In terms of the improvement of the human body comfort, on the surface of the cushion sample under different land types, compared to five hours of DI level to level 4, and other samples there are 4; Different plants of green space types, contrast to the most comfortable level for level 1, the discomfort of 4th level three, which is mainly composed of broadleaf trees and green space is the most comfortable level 0, no 4 hours. Thus, various types of green space can play a role of different level to improve the human body comfort, especially in high temperature in summer, the campus green space to reduce the level of human comfort index, make people feel more comfortable.5. Regulation of campus green space on the microclimate environment effect mainly displays in: reduce the air temperature of the environment, increase the relative humidity in the air, at the same time due to the blocking effect of plants to solar radiation, can greatly reduce the internal environment of green light intensity, thus increasing the human body comfortable degree in the green space environment, as well as reduce people in the hot, burning sun of summer, make the campus green space environment more comfortable and pleasant.