| 海南岛尖峰岭热带天然林主要树种生长过程的探讨 |
| |
| 引用本文： | 李善淇. 海南岛尖峰岭热带天然林主要树种生长过程的探讨[J]. 林业科学研究, 1988, 1(2): 169-178 |
| |
| 作者姓名： | 李善淇 |
| |
| 作者单位： | 1.中国林业科学研究院热带林业研究所 |
| |
| 摘 要： | 尖峰岭热带天然林,树种繁杂,林木生长存在较大的差异。根据65株不同树种的解析木,按树高和胸径的年生长量划分为三种类型,即年平均生长量大于0.5(m或cm)者为速生型,0.2—0.5者为中生型,小于0.2为慢生型,其中83.1%属于中生型,对各类型分别调制了生长过程的回归估测模型。材积生长量在三个类型中仍继续增长,数量成熟龄尚难确定。从缩短经营周期出发,可考虑采用工艺成熟龄作为择伐的回归年。据回归估测,速生型40年,中生型140年,慢生型180年,胸径可达32cm,树高23—24m,平均单株材积达0.9m3以上,符合锯材原木标准,可考虑作为择伐回归年的依据。
|
| 关 键 词： | 生长类型 生长量 生长模型 |
GROWING PROCESS OF THE MAJOR SPECIES OF TROPICAL FOREST AT JIANFENGLING, HAINAN ISLAND |
| |
| Li Shanqi. GROWING PROCESS OF THE MAJOR SPECIES OF TROPICAL FOREST AT JIANFENGLING, HAINAN ISLAND[J]. Forest Research, 1988, 1(2): 169-178 |
| |
| Authors: | Li Shanqi |
| |
| Affiliation: | 1. The Research Institute of Tropical Forestry CAF |
| |
| Abstract: | According to the mean annual increment in height and D. B. H. of 65 sample trees of different species, three growing types, i.e. fast-growing, medium and slow-growing, for the major species of tropical forest at Jianfengling area were classified. There are 83.1% of the total sample trees belonging to the medium-growing type and the growing process models in height, diameter and volume for the three types had been prepared separately. The volume increment in three types is still increasing and the age of quantitative maturity has not been found.In order to shorten the selection fellings cycle, technical maturity is need to be consideration. The regressive estimation shows that the increment of D. B. H., tree height and the individual tree volume would have reached 32cm, 23m, 0.9m3 respectively at the age of 40 in the fast-growing type, MO in the medium and 180 in the slow-growing type, these ages might be considered as a cutting cycle of selection. |
| |
| Keywords: | growing type increament growth model. |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《林业科学研究》浏览原始摘要信息 |
|
点击此处可从《林业科学研究》下载免费的PDF全文 |
|
