摘要
对1961年以来思茅林区松毛虫大暴发的过程进行了周期性分析,认为松毛虫的大暴发存在一定的周期性规律。利用气温、降雨量、积温、相对湿度、日照时数等气象要素和3种气候因子复合经验系数对1980至2001年思茅地区松毛虫发生情况进行了相关分析,发现松毛虫发生发展与气象因子关系密切;通过对1980年以来3次松毛虫大暴发的过程与气象因子关系的细致分析,得到了松毛虫大暴发前的气象因子的异常规律,分析结论有助于对松毛虫害发生的预测和防治。
The occurrence of Dendrolimus of Simao forest district from 1961 was studied, and the results implied that the occurrence of this pest had periodicity. The correlation between pest break out and five meteorological factors such as temperature, rainfall, temperature summation, relative temperature, sunshine duration and three experiential indexes was studied using the data from year 1980 to 2001. The results of study showed that the occurrence of Dendrolimus was closely related to meteorological factors. The climate abnormity before the break out of pest was revealed, which would be helpful for forecasting and controlling Dendrolimus.
出处
《云南林业科技》
2003年第3期77-82,共6页
Yunnan Forestry Science and Technology
基金
中科院"滇藏区域森林生态灾害监测研究"项目资助
