不同林龄日本落叶松与华北落叶松生长的比较

Comparative study on the growth of different age of Larix kaempferi and Larix principis-rupprechtii

从树高生长、胸径生长和材积生长方面,对4 a生8、a生、10 a生2、5 a生和38 a生的日本落叶松和华北落叶松进行比较分析。结果表明:各年生日本落叶松生长优于华北落叶松,整体上日本落叶松也优于华北落叶松,并且其高生长、胸径生长和材积生长随着林龄的增加而逐渐增加。

The comparative analysis of the height growth, diameter growth and volume growth in 4-year,8-year, 10-year,25- year and 38-year - old Larix kaempfei and larix principis - rupprechtii was studied. The results indicate： （ 1 ） growth of Larix kaempferi excels that of Larix principis - rupprechtii at every stage of forest age; （2） on the whole Larix kaempferi excels Larix principis - rupprechtii;the growth also increases with increasement of the age in height, diameter and volume growth.