区域风环境研究与通风廊道建设实施建议——以珠三角为例

Characteristics of Regional Wind Environment and Construction of Ventilation Corridors:A Case Study of the Pearl River Delta

通风廊道是城市低碳生态建设的重要抓手,文章立足在国内外在城市规划和气候学研究的基础上,对区域尺度通风廊道的分析模拟技术、区域通风潜力地区识别和建设实施建议3方面进行研究。研究表明:1)基于WRF中尺度预报模式系统的模拟具有较好的分析效果,能反映珠三角风环境特征;2)通过剖析区域不同类型下垫面的通风潜力,识别出佛山北江、从化流溪河、惠州市北部杨村镇和柏塘镇区域、惠州市白盆珠水库为冬季风进风口,伶仃洋、珠海斗门沿岸以及大亚湾地区为夏季风的进风口;3)同时,识别珠三角地区的镇村、河道、顺风向的山地可以作为区域通风廊道的潜力地区;4)在此基础上,从区域联防联治、空间综合利用、一体化设计3个方面,提出区域通风廊道建设实施建议。

Ventilation is an important measure of urban low-carbon ecological construction.This research is based on the domestic and abroad research of urban planning and Climatology.Using simulation technology to analyze the ventilation on regional scale,identifying the potential areas of ventilation and construction recommendation,the research shows that：1） The simulation of WRF meso-scale forecast model system has a good analysis effect,which can reflect the characteristics of wind environment in the Pearl River Delta;2） Analyzing the ventilation potential of different types of underlying surface,the research identifies the North River of Foshan,the Liuxihe River of Conghua,the areas of Yangcun and Botang in northern Huizhou,Baipenzhu Reservoir of Huizhou as the winter wind inlet,while the Lingding Bay,the coastal area of Doumen in Zhuhai and the Daya Bay area in Huizhou as the summer wind inlet;3） The research also identifies that the downwind areas of the towns,villages,rivers and mountains in the Pearl River Delta can be taken as the regional ventilation potential area;4） With regional united prevention,comprehensive utilization of space and integrated design,the research raises some suggestions about implementation of ventilation corridor construction.