摘要
根据1999～2008年的森林火灾统计资料，对我国夏季森林火灾的时空分布规律进行了研究：结果表明，我国夏季森林火灾发生次数在年、月时间尺度上均表现出明显的增长趋势，6月份森林火灾最多，8月份次之；从空间上看，华中和西北地区近年来夏季森林火灾发生次数直线增加，西南和华南地区夏季森林火灾呈现出周期为4～5年的周期性波动，华北地区夏季森林火灾无明显变化规律，华东地区夏季森林火灾较少，东北地区夏季森林火灾发生次数呈缓慢下降趋势．
According to statistical data of forest fire in 1999 - 2008, the temporal and spatial distribution rule of summer forest fire in our Country was studied. The results showed that the frequency of summer forest fire in our Country showed obvious increasing trend in time scale of annual and month. The forest fire in June was the most, and the following was that in August. In space, the frequency of summer forest fire in central China and northwest China was increased in line. And that in southwest China and south China showed cyclical fluctuation with a period of 4 -5 years, and that in north China had no obvious changing rule. The summer forest fire in east China was less, and its frequency in northeast China showed slow decreasing trend.
出处
《安徽农业科学》
CAS
北大核心
2010年第3期1551-1553,共3页
Journal of Anhui Agricultural Sciences
基金
国家自然科学基金项目(30671696)
公安部公安理论及软科学研究计划项目(2006LLYJSLGZ081)
关键词
夏季森林火灾
月变化
年际变化
Summer forest fire
Monthly change
Annual change
