摘要
本文通过SPSS统计软件，对深圳市1987——2009年的森林火灾特征进行分析，并采用湿润指数对近几年森林火灾发生情况进行分析，研究结果表明：随着气候的异常变化，深圳市20年的森林火灾呈现逐渐增加的趋势。湿润指数与森林火灾发生的关系表明，风高物燥，低湿的气象条件易发生森林火灾，春、秋和冬季是森林火灾的高发期。但是随着气候的异常变化，防火安全期不是绝对安全，因此，全年加强森林防火监控是应对气候变化最为有效方法。
The forest fire in Shenzhen was analyzed in temporal scale using the forest fire data and meteorological data during 1987 and 2009 with the help of SPSS. Humidity index was chosen to analyse the relationship between forest fire and meteorological conditions. The result showed that the total fire frequency and the burned area exhibited increasing tendencies for the past 20 years. Results showed the dry and low humidity meteorological condition could cause easily forest fire. Spring, Autumn and winter is the most dangerous fire season, but the fire danger also exist in the safe period of forest prevention as the unusual change of climate. The work of forest fire prevention should be enhanced in all year.
关键词
森林火灾
气候变化
湿润指数
Forest fire, Climate change, Humidity index
