厄尔尼诺、拉尼娜事件及太阳活动对河北省夏蝗大发生的影响分析

Effects of El Nio,La Nina and solar activities on the outbreaks of the summer locust in Hebei Province

利用灾变规律的关键时方法分析了厄尔尼诺(El Nino)、拉尼娜(La Nina)事件和太阳活动与河北省沿海型蝗区和淀洼型蝗区夏蝗大发生的关系。结果发现,El Nino、La Nina灾异事件不会促使河北省两类生态类型区夏蝗大发生,El Nino和La Nina事件对飞蝗大发生的影响主要是导致蝗区的天气气候产生异常。太阳活动对河北省两种生态类型区夏蝗大发生的影响也不明显,但在太阳黑子数峰值年时两种生态类型区夏蝗发生的情况存在差异。

By using the method of laws of catastrophe--the Key Time Method,the relations between sunspot,El Niho as well as La Niha episodes and the outbreaks of summer locust in different ecotype areas,seashore areas and lowland areas in Hebei Province were analyzed. Results show that El Ni ho and La Nina episodes have no influence on the outbreaks of summer locust in two ecotype areas in Hebei Province. El Nino and La Nina episodes affect the outbreaks of summer locust mainly through inducing the weather and climate changes. And the solar activities show no obvious effects on the outbreaks of summer locust in two ecotype areas in Hebei Province also,but there are some differences of outbreaks of summer locust between two ecotype areas in the years of sunspot at a peak value.