摘要
夏季高温季节,选取重庆市永川区典型的公园绿地5个,分别在每个公园内选取乔-灌-草、乔-灌、乔-草、灌木、草地5种不同绿地配置类型的绿地作为观测点,研究公园不同配置类型绿地的热岛调控效应。结果表明:具有乔木的复合林地降温、增湿效果均明显高于低矮的灌丛和草坪。各公园不同配置模式乔木林地在观测时间内的平均降温、增湿程度与郁闭度、乔木胸高断面积和植物三维绿量呈正相关关系。绿地配置时应注重充分利用有限的绿化空间,绿化应以乔灌草复合型的绿地配置模式为主,最大限度地发挥绿地的生态效益,改善城市热环境。
In the hot summer season, the authors selected five typical parks in Yongchuan District, Chongqing, and five different types of green space as observation points within each park, including tree-shrub-grass, and tree-shrub, tree-grass, shrubs and lawns, to study the regulation effects of heat island of these different types of green space. The results showed that: the cooling, humidifying effects of woodland with trees were significantly higher than that with low shrubs and lawns. The cooling and humidifying degree of each different configuration modes had positive correlation to coverage, basal area of trees and plants TGB. Green space configuration should focus on full use of limited green space, complex configuration mode as tree-shrub-grass and tree-shrub should be considered to maximize the ecological benefits of greening, so as to improve urban thermal environment.
出处
《中国农学通报》
CSCD
2014年第22期238-245,共8页
Chinese Agricultural Science Bulletin
基金
重庆市园林局科技计划项目"重庆城区公园对周边环境的降温效应研究"(YKZ2013-012)
重庆市永川区创建重庆生态园林城区城市热岛效应研究项目