应对热岛效应的城市绿地格局优化策略研究

RESEARCH ON THE OPTIMIZATION STRATEGIES OF URBAN GREEN SPACE PATTERN IN RESPONSE TO HEAT ISLAND EFFECTS

随着中国城市化速度的加快,大规模的城市建设、人口的急剧增长、城市绿地面积的减少与严重破碎化,极大影响了城市的气候环境,导致城市热岛现象加剧。本文通过将景观生态学中的相关概念和评价指数引入城市绿地系统,比较不同结构与形态的绿地应对城市热岛效应的差异性表现,进而解析绿地格局与热岛效应的主要相关因素,提出应对热岛效应的城市绿地格局优化途径与策略,使绿地生态效应最大化,为城市绿地系统的合理规划提供理论支持。

The phenomenon of urban heat island is aggravated by adverse city climate environment, which is significantly affected by massive city construction, sharp growth of population, the reduction of urban green space and serious fragmentation as urbanization speeds up in China. Relevant concepts and evaluation indexes in landscape ecology are introduced into urban green space system the paper compares the differences of urban heat island effect in green space with different structures and forms, and further analyzes the main correlative factors of green space pattern and heat island effect. Then the paper puts forward the optimized pattern and strategies of the green space layout to cope with heat island effect, which maximizes the effect of the ecology of the green space and lays theoretical support for the proper planning of the city green space system.