白花泡桐树干解析研究  

Stem Analysis on Paulownia fortunei

作　　者：周火明[1] 毛燕[1] 鲁丛平 柯尊发 滕家喜[3] 周忠诚[1] 

机构地区：[1]湖北生态工程职业技术学院,武汉430200 [2]湖北太子山林场管理局 [3]华中农业大学

出　　处：《安徽林业科技》2016年第3期16-19,共4页Anhui Forestry Science and Technology

摘　　要：本文通过对6年生白花泡桐树干进行解析、生长量测定,对泡桐的生长规律进行研究。结果表明,泡桐的胸径、树高生长快速期都出现在早期;胸径连年生长量和平均生长量在第3年生时达到最大值;树高的连年生长量与平均生长量在第2年达到最大值;材积的连年生长量在第4年时出现最大值,而材积的平均生长量一直表现为平稳的增长趋势,6年内材积的平均生长量一直处于上升趋势,还没有达到最大值;泡桐的胸高形数从第2年开始一直处于下降趋势;胸径生长率和树高生长率最大值出现在第2年,材积生长率最大值出现在第4年。In this paper a study was made on the growth rhythms of the 6-year-old Paulownia fortunei plantations by stem analysis and increment measurement. The results showed that the rapid DBH and height growth appeared in the early stage; the current annual and mean DBH increments reached their maximum in the third year and height increments reached their maximum in the second year; the current annual volume increment reached its maximum in the fourth year while the mean volume increment showed a stable growth trend and was in an uptrend in the 6 years without reaching its maximum; The breast height form number was in a downward trend from the second; the maximum DBH and height growth rates appeared in the second year and the maximum volume growth rate appeared in the fourth year.

关 键 词：白花泡桐 树干解析 生长规律 

分 类 号：S792.43[农业科学—林木遗传育种]