赣南树木园引种试验系统分析研究

对赣南树木园内521个引种树种物候、生长动态长期观测所积累的资料进行多元统计分析.如用聚类分析揭示物种间物候期与生长的相似性并进行数量分类;用典范相关分析揭示两组物候期变量之间的相关性,为物候期预报与控制提供信息参考;对一些物种苗期进行生长节律分析与月生长建模,为物种苗期田间管理进行有价值技术储备;对物种测树指标进行数学建模,有利于了解物种生长特性,为引种与推广提供有价值的技术资料.统计分析手段以简取繁,除引用多元统计分析方法外,还藉助于灰色系统理论中的灰色建模与关联分析.

System Analysis on Introduction Experiment of Gannan Arboretum

A multivariate statistical analysis is made on the accumulated observations for the phenology and growth of 521 introduced species in Gannan Arboretum. The similarities between different species in phenophase and growth are revealed and mathematically classified by means of cluster analysis. The correlation between two groups of phenophase variables is showed by means of canonical correlation analysis so as to provide a reference for the prediction and control of phenophase. Growth rhythm analyses and Monthly growth models are made for the seedling stage of the species so as to prepare technical basis for the management of fields. Mathematical models are established for the species' norms of forest mensuration to help find out the growth characteristics of species. Besides multivariate statistical analysis, Grey modeling and Associative analysis in grey system theory are used in the means of statistical analysis.