长白山红松球果螟发生与气象要素的相关性

Relationship between Occurrence of Dioryctria abietella Schiff and Meteorological Factors in Changbai Mountain

基于1999—2017年长白山红松球果螟发生率和气象观测资料,分析长白山红松球果螟变化特征以及与气象要素的关系.结果表明:气温、降水、光照、积温是影响球果螟发生率的主要气象因子.幼虫转化为越冬幼虫时气温回升有利于次年球果螟发生;前冬多降雪有利于越冬幼虫存活;秋末偏暖、光照时间偏多对次年球果螟发生有正贡献;当年5月降水、1月累积积温、冬季极端低温对球果螟发生率预测有指示意义.

Based on the incidence rate and meteorological observation data of Dioryctria abietella Schiff in Changbai Mountain from 1999 to 2017,the change characteristics of Dioryctria abietella Schiff and its relationship with meteorological factors were analyzed.The results showed that air temperature,precipitation,light and accumulated temperature were the main meteorological factors affecting the incidence rate of Dioryctria abietella Schiff.When the larva is transformed into over-wintering larva,the rising temperature is beneficial to the incidence of the next year’s Dioryctria abietella Schiff;more snowfall in the first winter is also benefit to the survival of the over-wintering larva;more warm days and light hours at the end of autumn contribute positively to the occurrence of the next year’s Dioryctria abietella Schiff;the precipitation in May,accumulated temperature in January and extreme low temperature in winter also indicate the incidence rate of Dioryctria abietella Schiff.