华北落叶松生长与气象因子的典型相关分析

Canonical Correlation Analysis between the Growth of Larix principis-rupprechtii and Climatic Factors

运用典型相关分析方法对塞罕坝机械林场华北落叶松生长量与气象因子进行分析,结果表明:影响华北落叶松直径生长量的重要气象因子是上年11月-当年1月平均蒸发量和年蒸发量;影响华北落叶松树高生长量的重要气象因子是年日照时数和上年6—8月平均降雨量。由此可以综合得出对华北落叶松生长量影响较大的气象因子是蒸发量、日照和降雨量。

The relati was analysed by th onship between the growth of Larix principis-rupprechtii and meteorological factors e canonical correlation analysis method in Saihanba area. The results showed that the mean evaporation from November of previous year to Januuary of current year, and the annual evaporation were the dominant meteoological factors affecting the diameter growth of L. principis-rupprechtii. The increment of height was affected mainly by the annual sunshine hours and the precipitation from June to August in previous year. It was concluded that the most important meteorolgical factors that effect the growth of L. principis-rupprechtii were the evaporation sunshine hours, and the precipitation.