河流廊道绿带宽度对温湿效益的影响  

Effects of Different Widths of Greenbelt on the Temperature and Humidity in River Corridor

作　　者：纪鹏[1] 朱春阳[1] 高玉福[1] 李树华[2,3] 

机构地区：[1]中国农业大学 [2]中国农业大学农学与生物技术学院 [3]清华大学建筑学院

出　　处：《中国园林》2012年第5期109-112,共4页Chinese Landscape Architecture

基　　金：国家自然科学基金(编号30972416);黑龙江省自然科学基金(编号QC2010042)共同资助

摘　　要：选择北京市北五环清河一侧8段不同宽度绿地作为研究对象,每2h分别对样地和对照处的温度、相对湿度进行同步测定,连续测定7d。结果显示：1）当绿地宽度小于15m时,绿地具有一定的降温增湿效应;当绿地宽度为15~35m时,绿地降温增湿效果较明显;当绿地宽度大于45m时,绿地降温增湿效果明显且趋于稳定。经SPSS方差分析[Duncan’S两两比较（P〈0.05）],认为城市河流廊道中可以明显发挥温湿效益的绿带关键宽度为45m左右。2）对3d内8条河流旁侧绿地平均温湿度值进行相关性分析,作出夏季河流旁侧绿地温、湿度关系的回归方程Y（相对湿度）=184.980-3.641x（温度）,温度每升高1.0℃,相对湿度降低约3.6%。The objects of this study were eight greenbelts with different widths along the Fifth Ring Road in Beijing. The air temperature and relative humidity of the greenbelts with different widths near river and the control place were measured every two hours from 8：00 to 18：00 every day for continuous seven days. The result of the experiments indicated that： 1） The green belts of 15m has a little effect on the decrease of temperature and unobvious effect on the increase of humidity; it has an comparatively obvious effect with the width of 15- 35m; an extremely obvious and stable effect with the width of more than 45m. Based on the analysis of variance by SPSS [Duncan’s Post Hoc Tests （P 0.05）], it can be concluded that the critical width of greenbelts for the obvious effect on the decrease of temperature and the increase of humidity is around 45m. 2） Regression equation Y （relative humidity ） =184.980-3.641x （temperature） was built based on regression analysis between the average temperature and humidity in eight greenbelts near the river in 3 days, which indicated that the relative humidity decreased by 3.6% with every 1.0℃ rise.

关 键 词：风景园林 河流廊道 绿带 宽度 温度 相对湿度 

分 类 号：TU986[建筑科学—城市规划与设计]