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京津冀地区城市聚集,目前在京津冀协同发展规划下,随着都市圈产业结构调整,各城市面临大量人口流动迁移,人居环境气候舒适性将影响人口重布。以京津冀地区13个主要城市作为研究对象,根据1951-2013年的气候资料,采用温湿指数THI和风效指数K,综合评价各城市气候舒适度,并加以对比分析。结果表明:近63 a来,本区13个城市人居气候环境舒适性较高;区内各城市气候舒适性分布特点表现为由东北向西南,舒适性呈现降低趋势,河北省内秦皇岛、唐山、廊坊、邯郸等多个城市气候舒适性均高于北京天津两大城市。以全年气候舒适程度由高到低排序:秦皇岛>唐山>廊坊、邯郸、北京>承德>张家口>石家庄、邢台、保定、衡水>沧州、天津。这将成为引导人口分流的有利因素,驱动人口高度密集区进行有序合理疏散,缓解北京天津的大城市病问题。
At present, under the coordinated development plan of Beijing, Tianjin and Hebei, with the adjustment of the industrial structure in the metropolitan area, cities in the region are faced with a large number of migrant movements and the climate comfort of living environment will affect the population re-distribution. Taking the 13 major cities in Beijing, Tianjin and Hebei as the objects of study, according to the climatic data from 1951 to 2013, the climate comfort of each city was comprehensively evaluated by using the temperature and humidity index THI and the wind efficiency index K, and comparative analysis was made. The results showed that in the past 63 years, the climate of human settlements in 13 cities in this area was more comfortable. The distribution of climatic comfort in each city showed a decreasing trend from northeast to southwest. The comfort of Qinhuangdao, Tangshan , Langfang, Handan and other cities climate comfort are higher than the two major cities in Beijing and Tianjin. The climate of all the year round is sorted by descending order: Qinhuangdao> Tangshan> Langfang, Handan, Beijing> Chengde> Zhangjiakou> Shijiazhuang, Xingtai, Baoding, Hengshui> Cangzhou, Tianjin. This will be a favorable factor in guiding the diversion of population, and will lead to a rational and orderly evacuation of heavily-populated areas to ease the big urban disease in Tianjin, Beijing.