摘要
本文以辽宁省长白落叶松栽培区的２２个市、县为样本，利用８个气候因子，应用主分量分析法（ＰＣＡ）进行计算。结果表明，前两个主分量信息占有率达全部信息的８４７１％，取前两个主分量对样本进行了二维排序。根据排序结果对栽培区进行了气候区划，划分了长白落叶松生长适宜区、较适宜区和可生长区三个区域，分析了各区与长白落叶松生长相关的气候条件，为确定该树种在不同地区的栽培措施和经营方向提供了气候依据。
In this paper, 22 municipalities and counties in Liaoning province of Larix olgensis cultivation areas were taken as specimens, 8 climatic factors were calculated and analysed by using Principal Component Analysis(PCA)method. The results indicated that:the occoupation probability of the first two principal component (PC)messages attained 84 71% of the total,so the specimens were arranged in two dimensional order according to the first two PC. Climatic division was conducted in the planting areas on the basis of the order. 3 regions,namely suitable region,more suitable region and growable rgion were classified,the related climatic conditions in each region were also analysed, this will provide climatic basis for planting measures and management directions of Larix olgensis in different areas.
出处
《辽宁林业科技》
1998年第6期17-20,共4页
Liaoning Forestry Science and Technology
关键词
长白落叶松
气候
区划
栽培
落叶松
Larix olgensis, Principal Component Analysis,climate,division
