期刊论文

Risk Assessment of Urban Haze Disaster in Hunan Province Based on Principal Component Analysis

中文

灾害学

1000-811X

2021

36

01

76-81

10.3969/j.issn.1000-811X.2021.01.015

湖南省哲学社会科学基金项目“湖南省城市雾霾灾害风险评估及防控对策研究”（18YBA044）；

本校为第一机构

近年来,我国各大城市雾霾频发,严重影响城市可持续发展。城市雾霾灾害风险诱因多、影响广,开展城市雾霾灾害风险研究具有重要意义。借鉴区域灾害系统理论,从孕灾环境敏感性、雾霾成分危害性和承灾体易损性3个方面选取了12个城市雾霾风险评估指标,运用主成分分析法,对湖南省14个地级城市雾霾风险进行定量评价。结果表明:（1）城市经济发展水平、机动车辆的数量、第二产业占比、煤炭消费量、房屋施工面积等对城市雾霾灾害风险的影响较大。（2）湖南省城市雾霾灾害风险度地域差异明显,长株潭城市群雾霾灾害风险极高,以其为中心向南、北、西三个方向逐渐降低。

In recent years,haze occurs frequently in major cities in China,which brings great inconvenience to people's production and life. However,there are many causes and wide impacts of urban haze,and the causes and impacts of urban haze in different regions are different. Therefore,studying the risk of urban haze is possessed with crucial significance. According to the theory of regional disaster system,we determine 12 indexes to evaluate the risk of urban haze from three aspects: the sensitivity of disaster pregnant environment,the perniciousness of the haze elements and the vulnerability of the s...