摘要
利用江苏省2008－2013年24个站的酸雨监测资料，分析出2008－2013年江苏省酸雨的强度和发生频率都有下降趋势，秋冬季酸雨发生频率高，夏季最低。基于信息扩散理论对全省酸雨进行风险评估，结果发现：年降水pH值和酸雨发生频率在不同风险水平分布特征较为一致，呈西北－东南逐渐增强趋势；年降水pH值80％的可能介于4.5～5.6之间，呈弱酸性；淮河以南地区酸雨发生频率的风险为40％的概率超过90％。
Data of acid rain from 24 stations during 2008-201 3 are used to analyze the trends of acid rain in Jiangsu Province.It is shown that the intensity and frequency of acid rain are decreasing within the recent 6 years and the frequency is highest in autumn and winter and lowest in summer.The acid rain risk of the province is eval-uated based on information diffusion theory.The results indicate that：the distribution characteristics between the pH value of precipitation and the frequency of acid rain is consistent in different level of risk and it increases gradu-ally from Northwest to Southeast.The pH value of annual precipitation is between 3.8 and 4.5 with about 80%probability and it presents weak acidity.There is more than 90% probability that the acid rain is with 40% risk level in South of Huaihe River.
出处
《灾害学》
CSCD
2015年第1期92-95,107,共5页
Journal of Catastrophology
基金
江苏省自然科学基金"江苏省酸雨污染的监测
分析及对主要农作物(大豆)生产的影响与防治关键技术研究"(BE2012747)
关键词
信息扩散理论
酸雨
风险评估
江苏省
Information Diffusion Theory
acid rain
risk assessment
Jiangsu Province
