论文部分内容阅读
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。
This article aims to identify important indicators to reveal the important relationship between the quantitative changes of Hemiberlesia pitysophilaTakagi and the changes of environmental factors and the damage degree of Pinus massoniana. Four sampling sites were selected in the occurrence area of P. crassiculcus in Fujian Province. Six quantitative indexes and six environmental factors of P. crassiphylla and their harm to P. massoniana were investigated. Results of the survey The comprehensive correlation coefficient analysis. The results showed that there was a significant negative correlation between the environmental factors and the quantitative index of P. elegans. All N, total P, temperature, female adult population density, male adult population density, and secondary natural population density were important indicators. There was a significant positive correlation between the quantitative index of P. massoniana and that of P. massoniana. There was no significant correlation between the environmental factors and the extent of the damage of P. massoniana. The results obtained from the comprehensive correlation coefficient are very consistent and consistent with the actual results. The conclusion is that the environmental factors have an important influence on the quantitative change of P. massoniana, the quantitative change of P. massoniana has a significant impact on the damage degree of P. massoniana, while the environmental factors have little effect on the damage degree of P. massoniana. The comprehensive correlation coefficient analysis method is a scientific Reasonable, a certain degree of innovation and practicality, it is worth promoting research.