【作者】 刘娇妹； 李树华；

【机构】 中国农业大学观赏园艺与园林系；

【摘要】 本试验选择元大都城垣遗址公园北段4块不同覆盖率的乔灌草型结构绿地为研究对象,进行了连续测试,通过测定分析,得出不同覆盖率的乔-灌-草型园林绿地在水平方向和垂直方向上温度、湿度的分布规律及差异。结果表明,在高温时段,四块绿地的温度排序为:覆盖率为80%的绿地<覆盖率为60%的绿地<覆盖率为40%的绿地<草坪,相对湿度的总体趋势是:覆盖率为80%的绿地>覆盖率为60%的绿地>覆盖率为40%的绿地>草坪;温度与覆盖率呈负相关关系,覆盖率与相对湿度呈正相关关系。覆盖率为80%绿地的降温增湿效果最好,草坪的降温增湿效果最差。更多还原

【Abstract】 The ecological benefits on urban green space of Yuan Da-Du Park in Beijing were studied in this paper.Four kinds of green space(the lawn,different coverage rate green spaces,that are,60%,80%) were studied in this experiment. In this study,air temperature,relative humidity were continuously measured in the four green spaces for horizontal and vertical direction in June and July 2006.The results were as follows: In the high temperature duration of the day,the temperature of lawn was the highest and the RH was the lowest;coverage rate of green space is 80%,for arbor-shrub-lawn,the temperature was lowest and RH is highest.The correlation between coverage rate with temperature is positive,the correlation between coverage rate with temperature is negative. Based on these results,the effects of the 80%coverage rate green space on lowering temperature and increasing relative humidity are best.Therefore,the higher coverage rate is the best choice of planting works.更多还原