天水市麦积区空气质量时空分布格局探究

Temporal and Spatial Distribution Analysis of Air Quality in Maiji District of Tianshui City

本文以天水市麦积区空气质量为研究对象,结合国家空气质量监测站数据和基于空间插值方法所获得的数据,使用空气质量综合指数评价法、相关系数法等空间分析方法分析了其空气质量时空变化规律与分布格局。结果表明,甘肃省天水市麦积区空气质量整体状况优良,但区域内部呈现明显的差异性,即东部诸乡镇空气质量优良,西部各乡镇的空气质量变化相对较差,最差的集中分布中部各乡镇;时间上,研究区空气质量呈现出明显的季节变化特征,整体以冬春季节(1月)空气质量为差,夏秋季节(5月、10月)空气质量为优。

Taking the air quality in Maiji District of Tianshui City as the research object,combined with the data ob⁃tained from the national air quality monitoring station and based on the spatial interpolation method,the spatial analy⁃sis methods such as air quality comprehensive index evaluation method and correlation coefficient method were used to analyze the spatial-temporal variation and distribution pattern of air quality.The results show that the air quality of Maiji District in Tianshui city is good on the whole,but there are obvious differences within the region,that is,the air quality of the eastern towns is good,the change of the air quality of the western towns is relatively poor,and the worst is concentrated in the central towns;in terms of time,the air quality in the study area shows obvious seasonal variation characteristics,and the overall air quality is in winter and spring(January)The air quality was poor,and the air quality was excellent in summer and autumn(May and October).