中文摘要：

在统计分析软件SPSS12.0的技术支持下,运用典型相关分析,对北方典型的河谷型城市？兰州市的城市大气环境质量的诸多影响因素进行了统计分析。研究结果表明：兰州市大气环境质量主要受机动车数量、国内生产总值GDP、GDP增长率、工业总产值和万元工业废气量等因素影响。并给出了概率水平为0.05情况下的兰州市空气污染综合指数的回归方程。为采取措施改善兰州市大气环境质量提供了理论依据。

英文摘要：

Under the technical support of statistical analysis software SPSSI2.0, the canonical correlation analysis was adopted to analyze the factors which influence the atmosphere environment in Lanzhou City, the representative of river - valley city in Northern China. The results showed that Lanzhou atmosphere environment quality was mostly influenced by vehicle quantities, GDP, GDP growth rate, the total value of industrial output and exhausted air quantity per ten thousand Yuan. The thesis also gave the Lanzhou air pollution composite indices regression equation in the situation as probability level is 0.05, and provided the theoretical basis to adopting measures in order to improving the atmosphere environmental quality in Lanzhou.