重庆市公园绿地夏季的热岛调控效应

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。

The Heat Island Regulation Effects of Chongqing Parks in Summer

In the hot summer season, select five typical parks in Yongchuan District, Chongqing. Then, selected five different types of green space as observation point within each park, including tree-shrub-grass, and tree-shrub, tree-grass, shrubs and lawns, and study the effects regulation of heat island of these different types of green space. The results showed that: the cooling, humidifying effects of woodland with trees are significantly higher than the low shrubs and lawns. The cooling and humidifiers degree of each different configuration modes have positive correlation to coverage, basal area of trees and plants TGB. Greening should focus on full use of limited green space, complex configuration mode as tree-shrub-grass and tree-shrub should more be considered to maximize the ecological benefits of greening, so as to improve urban thermal environment.