摘要
收集1993～2005年污染事故统计数据，运用GIS和非参数相关分析方法，分析了全国范围内环境污染与破坏事故的动态变化趋势、空间地域分布，探讨了不同的经济条件下影响其发生的外部因素.结果表明：①13 a中全国每年发生的环境污染与破坏事故总次数最少为1 406次，最多为3 001次，且总体趋势是下降的，水和大气两类环境事故占据了事故总数的绝大部分（83.04%～92.02%）。②环境污染与破坏事故空间上主要集中在我国东南和中部地区省份，湖南、四川和广西为环境事故最密集的区域。③人口数、GDP产值、企业个数和工业废水排放量对环境污染与破坏事故的发生次数有正作用。不同的经济水平下环境污染与破坏事故的发生与影响因素的相关程度不同，发达省份事故数仅与企业数呈现显著正相关关系。
Based on environmental statistics data from 1993 to 2005, spatial distribution and temporal tendency of the environmental pollution and destruction accidents and their external causes were analyzed by using GIS and non-parametric correlation methods. It was concluded that ①during the study period, annual environmental pollution accidents was maximally 3 001 times in 1994 and minimally 1 406 in 2005, while the frequency decreased in general. In addition, water and air accidents occupied the most; ② environmental pollution and destruction accidents centralized in southeast and middle parts of China, mainly in Hunan, Sichuan, and Guangxi; ③ factors including population, GDP, company number and industrial waste water discharge had positive impacts on frequency of environmental pollution and destruction accidents, while in develooed orovinces the frequency was only correlated with company number.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2008年第9期2684-2688,共5页
Environmental Science
基金
国家重点基础研究发展规划(973)项目(2007CB407307)
中国科学院知识创新工程重要方向性项目(KZCX2-YW-420-5)
国家自然科学基金项目(40471130)
关键词
环境污染与破坏事故
突发性环境事件
影响因素
environmental pollution and destruction accident
emerging environmental events
environmental impacts
