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影响马尾松天然林样木胸高木材密度因子的分析(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1989年02期
Page:
41-45
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
FACTORS AFFECTING BREAST HEIGHT DENSITY OF WOOD OF SAMPLE TREES FROM NATURAL STAND OF MASSON PINE
Article ID:
1000-2006(1989)02-0041-05
Author(s):
Zhou Zhichun Wang Zhangrong
Department of Forestry
Keywords:
Finus massoniana Latewood percent Regression analysis Coefficient of determination Density of wood
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1989.02.007
Document Code:
A
Abstract:
Of the five variables studied, viz, latewood percent, diameter at breast height, age of wood, radial annual growth rate and relative position of breast height of sample point, the latewood percent was found to be the most important factor, with the help of which, breast height density of wood of sample trees from natural stand of masson pine can be estimated with reasonable accuracy. In multiple regression analysis in the presence of latewood percent, estimative efficience don’t increase with the number of variables contained. The common measural characteristics can’t be used to estimate the density of wood at breast height.

References

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Last Update: 1900-01-01