论文部分内容阅读
城市化进程导致了我国大量城市规模剧增、建筑密度增大、建筑高度提升,城市建设行为产生的城市物质空间形态完全改变了自然地貌条件,形成了有别于自然环境的城市特有的空间形态,同时也引发了有别于大自然气候区的局地气候或小气候问题,称为微气候问题。目前雾霾和热岛是随着城市化进程加快所产生的典型微气候问题。高密度经济社会活动必然排放大量细微颗粒物,一旦排放超过大气循环能力和承载度,加上城市空间形态导致的风气候流动差,极易出现大范围雾霾,中国气象局基于能见度的观测
The process of urbanization has led to the dramatic increase of the scale of a large number of cities in our country, the increase of building density and the elevation of building height. The urban material space shape resulting from urban construction behavior completely changed the natural landform conditions and formed a city-specific spatial form that is different from the natural environment , But also triggered a local climate or microclimate different from the natural climate zone, called the micro-climate issue. At present, smog and heat island are the typical microclimate problems caused by the acceleration of urbanization. High density of economic and social activities will inevitably emit a large number of fine particles, once discharged more than atmospheric circulation capacity and bearing capacity, coupled with the urban spatial morphology caused by the poor flow of the weather, prone to widespread haze, China Meteorological Observatory based on visibility