摘要
对27年生江南油杉（Keteleeria cyclolepis）人工林的生长状况和天然更新特征调查,结果表明：树高年均生长0.87 m,胸径年均生长0.96 cm;天然更新幼苗地径分布在0.5-3.0 mm之间,苗高在30 cm以内,并集中于东、南方位树冠垂直投影范围;幼苗生长密度峰值出现在距离树干1 m和4 m处。江南油杉人工林的幼苗生长期,应及时抚育除草,避免遮挡光照,从而提高造林成活率。
Survey on the growth characteristics and natural regeneration of 27-year-old Keteleeria cyclolepis found that the tree height of yearly average growth was 0. 87 m, diameter at breast height of yearly average growth was 0. 96 cm; basal diameter of seedlings from natural regeneration ranged from 0. 5 mm to 3.0 mm with the height less than 30 cm, mainly distributed in eastern and southern side; the density peak of seedlings concentrated between 1 m and 4 m from tree trunk. It was concluded that during the seedling stage, it should weed in a timely manner and avoid shading in order to improve survival rate of afforestation.
作者
张烨
韦铄星
蒋燚
刘菲
刘雄盛
王勇
ZHANG Ye WEI Shuo-xing JIANG Yi LIU Fei LIU Xiong-sheng WANG Yong(Guangxi Forestry Research Institute, Key Laboratory of Central South Fast-growing Timber Cultivation of Forestry Ministry of China, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Nanning 530002, Chin)
出处
《广西林业科学》
2016年第3期334-337,共4页
Guangxi Forestry Science
基金
国家林业公益性行业科研专项(201304108)
广西林业科技项目(桂林科字[2014]第05号)
广西十百千人才专项资金
广西林科院基本科研业务费专项(林科201418号)
广西优良用材林资源培育重点实验室自主课题(14-A-03-02)
关键词
江南油杉
天然更新
幼苗
Keteleeria cyclolepis
natural regeneration
seedling
