内江市空气质量时空分布特征分析  

Analysis of the Temporal and Spatial Distribution Characteristics of Air Quality in Neijiang

作　　者：覃智莲 陈英杰[1] 刘欣[1] 甄英[1] 

机构地区：[1]内江师范学院地理与资源科学学院,四川内江641199

出　　处：《内江师范学院学报》2016年第12期67-71,共5页Journal of Neijiang Normal University

基　　金：内江师范学院大学生科研项目资助(15NSD-4)

摘　　要：以四川省内江市2012-2015年空气污染指数(API)数据为研究对象,借助Excel对数据进行简单处理,同时借助Geoda软件以及运用空间自相关分析方法,对内江市空气质量的空间分布状况进行分析研究.结果表明:内江市空气污染指数总体上较高,呈先升后降变化趋势,其中威远县空气质量最差;从季节来看,冬春季污染相对严重,夏秋较轻;空气污染指数API的全局Moran指数I呈现上升趋势,相关性在逐渐增强,但不存在影响其他地区的情况.The API data of 2012-2015 in the city of Neijiang is taken as the object of study. By use of Excel, the Geoda software and the method of spatial autocorrelation analysis, a probe into the air quality in Neijiang is done to find out about the spatial distribution of air quality in this city. The result shows that the air pollution index in Neijiang city is rather high on the whole, with a trend of increasing first and decreasing afterwards, and within the region, the Weiyuan County is found to have the worst air quality; in terms of the seasons, spring and winter suffer a relatively severer air pollution than summer and autumn; the global Moran I index of API takes a rising trend, the correlation is on a gradual increase, however, it has not yet become strong enough to exert significant effect on the adjacent regions.

关 键 词：空气污染指数(API) 空间自相关 莫兰指数 内江市 

分 类 号：X51[环境科学与工程—环境工程]