摘要
研究了白背飞虱种群数量与气象要素之间的关系。相关分析表明:白背飞虱种群数量与最高气温、最低气温和相对湿度均呈指数相关;与平均气温的最优曲线估计为S曲线,其中最低气温达到极显著水平,最高气温、相对湿度和平均气温达到显著水平。而偏相关分析则表明:气象要素对白背飞虱种群数量变化的影响大小依次为最高气温、平均气温和最低气温,其偏相关系数分别为-0.3100,0.2689和-0.2646,其余3个要素,降水量、相对湿度和日照时数的不相关概率介于39.9%至82.6%,远未达到5%的显著水平,说明分析方法不同可导致分析结果出现差异。
The realationship between group number of Sogatella furcifera Horvath and meteorological factors is studied in this paper. Based on correlation analysis, it is showed that the group number is exponentially correlated with the highest temperature, the lowest temperature and relative humidity, it＇s optimized curve with the average temperature is a＂ S＂ shaped one, it＇s difference with the lowest temperature reaches an extreme significant level, and it＇s differences with the highest temperature, relative humidity and average temperature reach significant level. But by the partial correlation analysis, the influence of the meteorological factors on the group number of Sogatella furcifera Horvath is ordinally the highest temperature, average temperature and the lowest temperature form greatness to smallness, the partial correlation coefficients is ordinarily -0. 3100,0. 2689 and -0. 2646, the non-correlated probability of precipiation, relative humidity and the sunshine duration is 39.9% - 82.6% , far away from the siginificance level 0.05, it is also concluded that for different analysis method, the results may be not same each other.
出处
《自然灾害学报》
CSCD
北大核心
2008年第3期125-129,共5页
Journal of Natural Disasters
关键词
白背飞虱
气象要素
统计分析
Sogatella furcifera Horvath
meteorological fators
statistical analysis
