摘要
广东引种秃杉与杉木、柳杉的对比试验结果表明 ,1981年试验林 ,秃杉在 13年生前各生长量均显著小于杉木 ,15年生时已与杉木差异不显著 ;而 1990年试验林 6年生的各生长量已显著大于杉木、柳杉。15年和 6年生秃杉的树高、胸径年均生长量、平均单株材积分别为 0 .5 7m ,0 .77cm ,6 .6 8× 10 - 2 m3和 1.0 4m ,0 .5 2cm ,3.0 5× 10 - 3m3。 3树种苗期的苗高、最长根长差异显著 ,秃杉根系细长 ,根长是柳杉的 2 .31倍、杉木的 1.5 7倍。秃杉在广东生长期长达 2 4 0d ,比杉木、柳杉分别长 2 3,2 5d。秃杉在广东引种已获初步成功 ,其苗期和幼林都能正常生长。
Taiwania flousiana Gaussen was introduced into Guangdong province and compared with Cunninghamia lanceolata and Cryptomeria fortunei in the test. The result showed that in the first trial, the growths of T. flousiana Gaussen were significantly smaller than C. lanceolata before 13 years old, but there were no significant difference at 15 years old. In the second trial, the growths of T. flousiana were significantly greater than C. lanceolata at 6 years old. The annual average height, diameter growth and average single volume of T. flousiana Gaussen were 0.57 m, 0.77 cm, 6.68×10 -2 m 3 for 15 years old and 1.04 m, 0.52 cm, 3.05×10 -3 m 3 for 6 years old respectively. There were significant distinctions on seedling height and root length among 3 trees, and roots of T. flousiana Gaussen were thin and long. Growth period of T. flousiana Gaussen was about 240 days, that was longer than C. lanceolata for 23 days and 25 days longer than C. fortunei . The study showed that the introduction of T. flousiana Gaussen in Guangdong was successful, it can grows well in seedling and sapling stage.
出处
《广东林业科技》
2003年第1期18-21,共4页
Forestry Science and Technology of Guangdong Province
关键词
生物量
物候期
广东
引种
秃杉
杉木
柳杉
对比试验
Taiwania flousiana , Cunninghamia lanceolata , Cryptomeria fortunei , biomass, phenophase
