摘要
分析了丽水的城市气候特点,发现不利于人们居住的3个气候特点:夏季高温、强热岛效应和不良通风状况;提出可以通过城区科学、合理的道路规划、设计来减缓这些不利因素,主要包括:路网设计要强化以正南北方向为基础偏转角度到12°左右,不但有利于有效通风,还能够在夏季为城市开敞空间和建筑提供有效遮蔽,降低对太阳辐射热的吸收。横断面宽度设计中要拓宽东西向街道以增强城市的通风能力;南北向街道宽度要适中,有利于加强并利用南部溪流形成的南北向的"微风"。最后,通过分析不同材质的地表温度,提出在横断面的样式景观设计中要合理配置绿化,尽可能增加草地,缓减城区热岛效应。
With respect to the climate in Lishui, three aspects are worth noting： high temperature in summer, the strong heat island effect and the bad ventilation. They could be alleviated by reasonable and scientific road planning or designing. The main points include： a deflection angle of 12° for north-south roads, which not only is good for efficacious ventilation,but also can provide an efficacious shelter for the city and reduce the absorption of the sun radiation; broadening of east-west roads while keeping north-south roads in a reasonable width to enhance the ability of the city＇s ventilation and to strengthen the north-south wind formed from the south streamlets and planting trees in the landscape and increasing lawn area to slow down the heat island effect.
出处
《科技导报》
CAS
CSCD
2008年第8期67-70,共4页
Science & Technology Review
基金
浙江省气象局一般项目(200309)
关键词
夏季高温
热岛效应
不良通风
路网设计
横断面设计
High temperature in Summer
, heat island effect
badventilation
designing of the road net
designing of the cross section
