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不同落羽杉种源木材密度的变异(PDF)

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

Issue:
2006年04期
Page:
51-54
Column:
研究论文
publishdate:
2006-04-20

Article Info:/Info

Title:
Variation of Wood Density of 16 Taxodium distichum (L.) Rich Provenances
Article ID:
1000-2006(2006)04-0051-04
Author(s):
LIU Xue-jun1 CAO Fu-liang1* WANG Gui-bin1 HAO Ming-zhuo1 YUAN An-quan2 WANG Qi-ming3
1. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 2. Forestry and Animal Husbandy Bureau of Hongze County, Hongze 223211, China; 3. Jiangsu Academy of Forestry, Nanjing 211153, China
Keywords:
Taxodium distichum Wood density Variation
Classification number :
S781
DOI:
10.3969/j.jssn.1000-2006.2006.04.012
Document Code:
A
Abstract:
The wood density of 16 Taxodiurn distichum provenances was studied. The results were as follows: (1) The air-dry density, complete-dry density and basic density of 16 provenance had a significant difference, and the air-dry density, complete-dry density and basic density of No. 5, No. 4 and No. 3 provenances were all highest, and those of No. 10 provenance were lowest; (2) The total variation coefficients of the air-dry density, complete-dry density and basic density of 16 provenances were 7.96%, 8.92% and 8.92% respectively, and variation ranges were 0.3232~0.5104g/cm3, 0.2933~0.4629g/cm3 and 0.2685~0.400 4g/cma respectively; (3) Wood basic densities from base to top of the stem had a significant variation, and wood basic density increased with increasing of tree height~ (4) The radial variation of wood basic density in different positions of stem had a different changing trend, and the wood basic density had a changing trend of low-high-low from marrow to north, and the changing trend from marrow to south was different in different conditions of stem.

References

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Last Update: 2013-05-20