摘要
丽水地处浙西南丘陵地带,属于南岭山脉的余脉,是华东地区唯一的全国生态示范区,森林覆盖率达79%以上。该地森林火灾多发于冬春干燥季节,且人为因素居多,但近年来由于异常干旱,雷击引起相当比例的森林火灾。文章主要应用天气形势分析和物理量分析的方法,从地表状况和天气条件两方面分析了2003和2004年发生在丽水境内4次比较典型的引起森林火灾的雷击天气过程,从中归纳出一些有利于引发雷击森林火灾的地表条件和气象条件,为森林火险的预报和防灾救灾提供参考。
The southwestern Zhejiang Province has a forest coverage of over 79 %. Lightning strikes caused forest fires more frequently in the last two years. Based on four representative examples, an analysis is made of the surface and weather conditions for lightning-caused forest fires. Some valuable results arg obtained. It is found out that some of the surface and weather conditions for lightning-caused forest fires in the southwestern Zhejiang Province are different from those in North China. The findings may provide useful references for forest-fire fighting in South China.
出处
《气象科技》
2006年第4期465-469,共5页
Meteorological Science and Technology
关键词
雷击
森林火灾
地表条件
天气形势
lightning strike, forest fire, surface situation, weather condition
