【摘 要】
：
在福建省莆田市荔城区西天尾镇下垞村选取设置9块成熟的巨尾桉标准地,采用林分平均木树干解析,以所获取的解析木资料为基础,采用Richards方程分别拟合巨尾桉的胸径、树高、材
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在福建省莆田市荔城区西天尾镇下垞村选取设置9块成熟的巨尾桉标准地,采用林分平均木树干解析,以所获取的解析木资料为基础,采用Richards方程分别拟合巨尾桉的胸径、树高、材积生长方程,进而研究巨尾桉生长规律,结果表明:巨尾桉胸径与树高连年生长量在2～3 a时达到最大,平均生长量则在5 a时达到最大,而材积连年生长量在7～9 a时达到最大,平均生长量在13 a达到最大。并由此确定其数量成熟龄,从而为该地区巨尾桉的主伐年龄确定及生产经营提供有益参考。
Nine mature mature Eucalyptus grandis cv. Eucalyptus trees were selected in Xiapi Village, Xitiaowei Town, Pucheng District, Putian City, Fujian Province. Based on the analysis of average wood trunk of the forest, based on the analytical wood data obtained, Richards equations were used to fit giant Eucalyptus urophylla, the DBH, tree height and volume growth equation of Eucalyptus urophylla were studied. The results showed that the DBH and height of Pinus elliottii reached the maximum at 2 ~ 3 years, and the mean growth was at 5 a Reaching the maximum, while the volume annual growth in volume reached the maximum in 7 ~ 9 a, the average growth reached the maximum in 13 a. And thus determine the number of mature age, so as to provide a useful reference for determining the age of cutting and the production and management of the giant eucalyptus grandis in this area.
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