大连市近50年气温变化与城市化进程的关系

Relationship Between Temperature Transformation and Urbanization Development of Dalian in Recent 50 Years

以大连市1950年以来气温指标及城市化进程为分析基础,运用函数关系确立代表城市化进程的综合参数,生成大连市年均温变化趋势与城市化进程的关系图,从图中发现气温变化与城市化进程有着密切联系;利用主成分分析方法对影响气温变化的因子进行定量研究,结果表明在城市化进程中影响气温变化的主导因子为:城市人口数量、城市化水平、产业结构和下垫面的性质改变。

On the basis of temperature transformation and urbanization development of Dalian city since 1950, the synthetically parameters of urbanization were established through function. At the same time the relation chart was made, which might reflect the relationship between annual trend transformation of average temperature and urbanization. Through analyzing, it was found that the urbanization was related to the temperature transformation. The factors that influenced the temperature transformation were studied with principle component analysis quantificationally. The results indicated： the dominant factors that influenced temperature transformation during the course of urbanization included population, urbanization extent, industrial structure and property changing of underlying surface.