摘要
利用小尺度定量测定的方法,选择北京典型的城市带状绿地——西四环旁侧4种不同内部结构以及5种不同郁闭度带状绿地(绿地宽度42m)作为研究对象,研究带状绿地结构类型与温湿效应的关系.结果表明:与对照相比,草坪的降温增湿效应不显著,灌-草、乔-草和乔-灌-草绿地的降温增湿效果显著.当郁闭度为10%～31%时,绿地具有一定的降温增湿效应,但效应不显著;当郁闭度超过44%时,绿地降温增湿效应显著;当郁闭度超过67%时,绿地降温增湿效应显著且趋于稳定.
Taking four green belts with different internal constitutions and five green belts with different canopy densities along the west fourth ring road of Beijing as test objects,and by using small-scale quantitative measurement method,this paper studied the relationships between different structure urban green belts（width 42 m） and temperature-humidity effect in Beijing.Comparing with the control,lawn had no obvious effect on the decrease of air temperature and the increase of relative humidity,while shrub-herbage,tree-shrub-herbage,and tree-herbage had significant effect.When the canopy density was 10%-31%,green belts had definite effect on the decrease of air temperature and the increase of relative humidity;when the canopy density reached 44%,the effect became significant;and when the canopy density exceeded 67%,the effect was significant and stable.
出处
《应用生态学报》
CAS
CSCD
北大核心
2011年第5期1255-1260,共6页
Chinese Journal of Applied Ecology
基金
国家自然科学基金项目(30972416)资助
关键词
带状绿地
内部结构
郁闭度
温湿效应
热岛效应
green belt
internal constitution
canopy density
temperature-humidity effect
heat island effect
