摘要
对四川香樟树高、胸径、材积生长规律研究结果表明:香樟生长适应性较强,27 a树高平均可达15.80 m,胸径可达35.1 cm,材积可达0.6790 m3;香樟造林初期生长相对较缓慢,在10 a～12 a时树高和胸径连年生长量到达峰值,之后开始下降但仍保持较高的年生长量;材积连年生长量和平均生长量随着树龄的增大而呈持续增长趋势,27a时,仍维持较快的增长速度;Logistic曲线对香樟树高、胸径和材积生长动态有较好的拟合效果,其回归方程分别为:y=35.4356/(1+11.59×e-0.1942x),y=16.429/(1+12.6749×e-0.1906x),y=0.9639/(1+107.5×e-0.2043x)。
Studies were made of the growth pattern of height,DBH and volume of Cinnamomum camphora trees in Sichuan Province.The results showed that the growth of Cinnamomum camphora trees had a strong adaptability.The average height of 27-year-old trees could reach 15.80 m.They could have an average DBH of 35.1 cm and a volume 0.6790 m3.At the initial plantatian stage the growth of Cinnamomum camphora trees were slow,but their annual DBH growth and height growth would achieve the peak at about 10th or 12 th year.After 12 years their annual DBH growth and height growth still maintained a higher growth tendency.Their annual volume growth and average volume growth continued increasing with the increase of the tree age,and still maintained a quicker growth velocity at 27th year.The growth dynamic models of height,DBH and volume of Cinnamomum camphora were established with the Logistic Equation.Three regression equations were y=35.4356/（1＋11.59×e-0.1942x）,y=16.429/（1＋12.6749×e-0.1906x）,y=0.9639/（1＋107.5×e-0.2043x）.
出处
《四川林业科技》
2011年第4期1-4,共4页
Journal of Sichuan Forestry Science and Technology
基金
盆周山地珍贵用材树种选育与培育技术研究(200904044-01)
四川地震灾区灾后植被恢复及可持续发展关键技术研究与示范(201104109)
关键词
香樟
生长规律
生长评价
Cinnamomum camphora
Growth pattern
Growth evaluation
