摘要
对吉林省八家子林业局钻天柳天然林中的平均木和优势木进行树干解析,研究其生长规律和特点,结果表明:40 a生时的树高、胸径、材积生长量分别为26.0～27.5 m、37.6～41.4 cm、1.32～1.77 m3·株-1。树高生长高峰出现得比较早,5～15 a之间生长最快,高生长每年都在1.0 m以上;胸径生长高峰出现在10～18 a之间,直到35 a生时胸径平均生长量还保持在0.8 cm左右,持续时间较长;7 a生时材积生长开始加快,直到40 a生时还未达到生长高峰。
The common and prominent individuals of Chosenia arbutifolia were investigated to study its growth regularity and characteristics in naturalforest in Bajiazi forest bureau of Jilin province. The results showed that the height, breast width and volume of 40 - year old tree were 26.0 - 27.5 m,37.6 - 41.4 cm, 1.32 - 1.77 ms. The peak of height growth occurred among 5 - 15 years, with lm height growth per year. The peak of breast width occurred among 10 - 18 years. The average growth rate was still 0.8 cm/yr at 35 - year old. The volume increased obviously after 7 - year growth and did not reach the peak at 40 - year old.
出处
《吉林林业科技》
2010年第6期31-33,共3页
Journal of Jilin Forestry Science and Technology
关键词
钻天柳
生长规律
速生
Chosenia arbutifolia
growth regularity
fast growing
