城市气温与其人为影响因素的关系

为减轻城市的热岛效应，为今后城市的科学规划合理改造提供基础性的借鉴资料，使用城市规划图和航空图片对某市区下垫面分类，并根据实地大气温度的监测数据，运用相关分析法和多元回归分析法，探讨了城市气温与下垫面和人为排热等影响因素之间的关系。研究发现南开区全天、白天气温与区域绿化率、水面比率、建筑容积率和人为排热具有较显著的线性相关关系，夜晚气温仅与人为排热具有较显著的线性相关关系；且各影响因素对不同时段气温影响的显著性不同。

Relationship Between Heat Island Effect and Artificial Factors

In order to relieve city heat island effect and provide fundamental referential materials for future rational city planning and rebuilding, this paper assorted the underlaying surface of Tianjin Nankai District according to city planning drawing and airscapes, and analyzed the correlation of city air temperature with city underlaying surface and anthropogenic heat according to air temperature records and city subsurface sorting. It is found that the day and all-day temperature in Nankai District have remarkable linear relationship with ratio of green area, ratio of water area, plot ratio and anthropogenic heat; night temperature is only related with anthropogenic heat significantly; and the influence significance of these factors on air temperature of different periods varies.