奥地利黑松生长特性的研究  

Growth Characteristics of Pinus nigra Austriaca

作　　者：吕延琴 

机构地区：[1]延安市宝塔区林业站,陕西延安716000

出　　处：《陕西林业科技》2008年第2期65-67,共3页Shaanxi Forest Science and Technology

摘　　要：本文对延安树木园引种的奥地利黑松的生长特性进行了研究。结果表明,奥地利黑松叶芽开放期比乡土树种油松早8 d;展叶期比油松晚11～16 d;新梢开始生长期,奥地利黑松与油松相差近1个月时间,封顶期9月6～10日。奥地利黑松幼苗根系发达,直根长、侧根粗壮、层次明显,鲜质量大,苗木地径生长量显著大于油松,与油松形成鲜明对照,是荒山造林的好树种。31 a生奥地利黑松高生长速生期出现在第15～20 a,生长量占树高的32.1%,比较而言,奥地利黑松树高生长较慢,胸径大于油松,材积年生长量是油松的2倍。The growth characteristics of Austrian Pine was studied. The result showed that compared with local Pinus Tabulaeformis Carr. , its leaf bud opening was 5 days earlier, leaves appearance phase 11-16 days later and shooting commencement 30 days later. Top--cutting appearances around September 6- 10. The young seedlings of Austrian Pine had a stronger root system with long vertical roots and thick lateral roots. Stem diameter was obviously bigger than that of Pinus Tabulaeformis Carr. For a 31- years old Austrian pine, its fast height growth appeared from the fifteenth year through twentieth year, with volume growth accounting for 32.1% of the total. Compared to Pinus Tabulaeformis Carr. Austrian pine has a slower height growth but has a bigger DBH and two times of annual volume.

关 键 词：奥地利黑松 油松 生长特性 物候特征 

分 类 号：S791.256.02[农业科学—林木遗传育种]