摘要
利用大兴安岭地区7个气象站1975～1992年的积温(≥10°C)、月平均相对湿度、降水量、温度观测资料和1989～1990年当地落叶松毛虫普查资料,对大兴安岭林区落叶松毛虫大发生前各气候因子的变化情况进行分析,发现了一些规律。选择了三种气候因子的复合经验指数——干燥度、湿润度、温雨系数,分别分析了它们与松毛虫发生的关系。
The changes of meteorological factors before large scale occurrence of pine moth in forest region in the Great Xing′an Mountain are analyzed and some regularity is found by use of observation data of accumulated temperature (≥10°C) , monthly mean relative humidity, rainfall and temperature of 7 stations in 1975~1992 and general survey data of pine moth in 19891990 Three compound experiential indexes, aridity, humidity and temperaturerainfall coefficient are chosen and their relations to pine moth occurrence are analyzed
出处
《灾害学》
CSCD
2002年第4期32-37,共6页
Journal of Catastrophology
基金
中国气象局气象科学基金项目(8813)
吉林省重点科技项目(1997-642-02)共同资助
关键词
气候因子
经验指数
松毛虫
大兴安岭林区
相对湿度
降水量
温度
meteorological factor
experiential index
pine moth
forest region in the Great Xiang′an Mountain
