油松生长量早—-晚期生长相关的研究  

Study on Early-Late Correlation of the Grwrth Traits of Pinus Tabulaceformis Carr

作　　者：王琳[1] 周正立[1] 

机构地区：[1]塔里木农垦大学蚕林系,新疆阿拉尔843300

出　　处：《塔里木农垦大学学报》1995年第1期37-40,共4页Journal of Tarim University of Agricultural Reclamation

摘　　要：研究证明油松不同林分个体的面生长变异随年龄的增大达某一高峰时有所降低,而径生长变异却随年龄的增长一直增大。迭部油松天然林生长变异增长率和相关系数增长率均在15年时最大,初步确定15年生是迭部油松天然林早期选择的可靠年龄。连城油松天然林的早期选择年龄比迭部油松天然林晚5年。The result showed that variation of diameter growth increases with age, but the variation of height growth declines a little after the maximus.Pinus natual stand of pinus tabulaceformis carr.in Diebu. both the rate of increase of growth variation and that of correlation coefficient reach their maximum at the age of 15. Trough analysis of the growth variation.its correlation and the earl selection efficiency.it is primarily de-cided that the age is the best age for the early selection of the natural stands of pinus tabulaceformis carr. in Diebu. The best age for in the early selection carried out in natural stand of pinus tabulace formis in LIANCHEN in ten years later than that in natural stand of pinus tabulace formis carr, in Diebu.

关 键 词：油松 天然林 林木育种 伐期龄 生长量 

分 类 号：S722[农业科学—林木遗传育种] S791.254[农业科学—林学]