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中文摘要：
通过对1950~2013年中国森林火灾观测数据的整理和分析,揭示中国森林火灾在短时间尺度上的发生规律。结果表明：在日时间尺度上,中国森林火灾主要发生在8：00~16：00,其变化规律与气温、湿度变化及人类频繁活动的时间点关系密切;在月、季时间尺度上,春季森林火灾较多,夏季森林火灾较少,这与中国季风气候的特点及一些特定的人类活动相关;在年际时间尺度上,自1950年以来中国森林火灾呈现阶梯状下降趋势,这一趋势与气候变化的关系不是很明显,可能较多地受到人为因素如政策法规的影响。
英文摘要：
Using the observational data of national forest fires in China from 1950 to 2013,the occurrence patterns of national forest fires on short time scales are analyzed and revealed. high frequencies of forest fires occur between 8： 00 and 16： 00 on the daily scale,which are closely related with the time point of daily changes in temperature,humidity and frequent human activities; on the monthly and seasonally scale,more forest fires occur in the spring and less in the summer,which are associated with monsoon climate in China and some specific human activities; on the interannual scale,the occurrence of forest fires in China since 1950 shows a ladder- like decreasing trend,and this study suggests that the impact of climate changes to this trend is not obvious,this trend may be influenced by the policies and regulations of the human factors.
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