摘要
采用城市化的多项要素指标,系统考察了上海1985—2005年期间城市化的发展对其城市热岛效应强度的影响关系,发现城市化的发展是导致城市热岛效应形成和加剧的主要原因.城市化的发展主要是作为一种常态因素,通过常态作用"加温"中心城区,提高中心城区气温的平均状态,从而形成和加剧城市热岛效应;城市人口规模是考察城市化发展对城市热岛效应影响关系的一个很有价值的综合性指标,城市热岛效应不仅与人口规模有关,亦与人口密度有关;上海在建成区面积扩大到300 km2、建成区人口规模达到600万人、实质人均GDP超过5 000元以后,城市化的发展对城市热岛效应的提升作用呈明显减缓趋势.
In this paper,using several indexes of urbanization,we conduct a systematic study on the relationship between urbanization and heat island effect during 1985 and 2005 in Shanghai.We discover that：urbanization is the main reason for the formation and reinforcement of the heat island effect;as an ever-present factor,urbanization steadily warms the central urban area and increases its average temperature,resulting in the occurrence as well as further intensification of the effect;population size seems to be a good comprehensive indicator for studying the relationship,and at the same time population density should not be ignored;and,a key turning point appeared around 1990,when the urban area reached 300 km^2,concerned population reached 6 million and the real per capita GDP reached 5 000 RMB,and afterwards the improvement effect of the urban heat island by urbanization development significantly slowed down.
出处
《亚热带资源与环境学报》
2010年第2期1-11,共11页
Journal of Subtropical Resources and Environment
基金
中国人民大学人口与发展研究中心教育部基地重大课题(05JJD840010)
国家社科重点项目(05AJY002)
国家人口计生委"全球气候变化中的人口因素研究"课题与"上海城市化导致的气候变化及其与能源消费的相互影响"(07DZ12075)资助
关键词
城市化
热岛效应
上海
urbanization
heat island effect
Shanghai
