CAJ | 학술논문

为了进一步了解华北落叶松生长发育规律，为培育大径级的华北落叶松提供基础数据，通过分析年轮宽度和轮枝高度，对0～80 a 华北落叶松不同年龄胸径和树高的生长量情况进行了研究，结果表明，华北落叶松胸径生长量在80 a 之前比较稳定，虽然到60 a 后胸径生长量有所减低，但每年仍然能达到0．5 cm 左右；华北落叶松树高生长量在林龄50 a 之后明显减小，到70 a 后年生长量基本在0．2 m 左右，到80 a 时每年仍然有0．2 m 的生长量。
위료진일보료해화북락협송생장발육규률，위배육대경급적화북락협송제공기출수거，통과분석년륜관도화륜지고도，대0～80 a 화북락협송불동년령흉경화수고적생장량정황진행료연구，결과표명，화북락협송흉경생장량재80 a 지전비교은정，수연도60 a 후흉경생장량유소감저，단매년잉연능체도0．5 cm 좌우；화북락협송수고생장량재림령50 a 지후명현감소，도70 a 후년생장량기본재0．2 m 좌우，도80 a 시매년잉연유0．2 m 적생장량。
In order to further study the grow th pattern of L arix p rincipis‐rup p rechtii espe‐cially at age between 40 - 80 a ,and provide basic information for the cultivation of large di‐ameter of L arix p rincipis‐rup prechtii ,different annual tree height and DBH of 0 - 80 a L . p rincipis‐rup prechtii were studied through the analysis of growth ring width and ring bran‐ches .The results showed that ,the < 80 a North China Larch diameter stands basically at relatively stable grow th .Although the DBH grow th increment of > 60 a larch decreased somewhat ,it still could reach 0 .5 cm per year .50 a North China larch started to decrease its growing volume significantly ,but 70 -80 a larch still kept the basic annual growth of around 0 .2 m .