松突圆蚧数量、环境因子及马尾松受危害程度三者间的相关性分析

Correlation analysis of population size of Hemiberlesia pitysophila(Homoptera:Diaspididae),environmental factors and the hazard degree of masson pine

本文旨在找出重要的指标,从而揭示松突圆蚧Hemiberlesia pitysophilaTakagi的数量变化与环境因素变化、马尾松Pinus massoniana所受危害程度间相互存在的重要关系。于福建省松突圆蚧发生区选取了4块调查标准样地,对松突圆蚧的6个数量指标和6个环境因子及其对马尾松受危害程度进行了调查,并对调查结果进行了综合相关系数分析。结果表明,环境因子与松突圆蚧数量指标之间存在显著的综合负相关,全N、全P、温度、雌成虫虫口密度、雄成虫虫口密度、2龄若虫虫口密度都是重要指标。松突圆蚧数量指标与马尾松受危害程度之间存在显著的综合正向相关性,环境因子与马尾松受危害程度之间不存在显著的综合相关性。综合相关系数分析所得的各种结果之间非常协调一致,与实际也基本相符。结论认为:环境因子对松突圆蚧数量变化有重要影响,松突圆蚧数量变化对马尾松危害程度有重要影响,而环境因子对马尾松危害程度影响不大;综合相关系数分析法是科学合理的,有一定的创新性和实用性,值得推广研究。

In order to identify significant indicators, and thereby reveal the important relationship among the quantitative changes of Hemiberlesia pitysophila, the changes of environmental factors and the hazard degree of masson pine, four standard areas where the Hemiberlesia pitysophila occurred in Fujian Province were selected for the survey. Moreover, six quantitative indicators of Hemiberlesia pitysophila, six environmental factors and the hazard degree of masson pine were investigated, and then the results of investigation were analyzed by using the integrated correlation coefficient analysis. The results showed that environmental factors had significant integrated negative correlation with the quantitative indicators of Hemiberlesia pitysophila： besides total N, total P and temperature, the female adult population density, the male adult population density, and the second instar nymph density were important indicators. Furthermore, quantitative indicators of Hemiberlesia pitysophila had significant integrated positive correlation with the hazard degree of masson pine, but environmental factors had no significant integrated correlation with the hazard degree of masson pine. The various results obtained using the integrated correlation coefficient analysis were very coherent, and basically in line with reality. So, it is concluded that the environmental factors has significant influence on the hazard degree of masson pine, the quantitative change of Hemiberlesia pitysophila has important influence on the hazard degree of masson pine, while environmental factors has little influence on the hazard degree of masson pine. The integrated correlation coefficient analysis with a certain degree of innovation and practicality is scientific and rational, and is worthy of study and popularization.