Radial variations of the timber properties of <em>Pinus densifiora</em> planted in different slope places

JIN Chun-de; ZHANG Mei-shu; WEN Gui-feng; LIU Ji-sheng2; ZHANG Peng

Volume 21 Issue 2

Feb. 2017

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Article Navigation > Journal of Zhejiang A&F University > 2004 > 21(2): 119-124

JIN Chun-de, ZHANG Mei-shu, WEN Gui-feng, LIU Ji-sheng2, ZHANG Peng. Radial variations of the timber properties of Pinus densifiora planted in different slope places[J]. Journal of Zhejiang A&F University, 2004, 21(2): 119-124.

Citation:

JIN Chun-de, ZHANG Mei-shu, WEN Gui-feng, LIU Ji-sheng2, ZHANG Peng. Radial variations of the timber properties of Pinus densifiora planted in different slope places[J]. Journal of Zhejiang A&F University, 2004, 21(2): 119-124.

Radial variations of the timber properties of Pinus densifiora planted in different slope places

1.
.School of Engineering , Zhejiang Forestry College , Lin,an 311300, Zhejiang , China;
2.
College of Agriculture , Yanbian University , Longjing 133400, Jilin , China

Funds:

国家自然科学基金资助项目(30060070)

Received Date: 2003-12-03
Rev Recd Date: 2004-02-13
Publish Date: 2004-04-20

Abstract

The radial variation models and differences of the tracheid morphological and physico-mechanical characteristics of Pinus densifiora plantations in the below , middle and upper slopes in the Maoer Mountain Forestry Center in Yanji City were studied .The results showed that micro-fibril angle , basic density and the ratio of wall to diameter of P .densifiora plantations in the different slopes were magnificently different at the 0.01 level .The average values of ratio of wall to diameter of P .densifiora in the middle slope were 11.62 %and 16.45 %higher than those in the below slope and upper slope .And the average value of micro-fibril angle of the former was 54.31 % and 38.77 % less than the latter , and the average value of basic density was 10.5 % and 7.02 % higher .The variations results showed that P .densifiora plantation timber in the middle slope was the best structure material , and others was more suitable for the pulp materials .[ Ch , 9 fig .3 tab .6 ref .]
- wood science,
- Pinus densifiora,
- slope places,
- tracheid morphology,
- physical and mechanical characteristics,
- variation rule

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Proportional views

Radial variations of the timber properties of Pinus densifiora planted in different slope places

1. .School of Engineering , Zhejiang Forestry College , Lin,an 311300, Zhejiang , China;

2. College of Agriculture , Yanbian University , Longjing 133400, Jilin , China

Funds:

国家自然科学基金资助项目(30060070)

Received Date: 2003-12-03

Rev Recd Date: 2004-02-13

Publish Date: 2004-04-20

Key words:

wood science /
Pinus densifiora /
slope places /
tracheid morphology /
physical and mechanical characteristics /
variation rule

Abstract: The radial variation models and differences of the tracheid morphological and physico-mechanical characteristics of Pinus densifiora plantations in the below , middle and upper slopes in the Maoer Mountain Forestry Center in Yanji City were studied .The results showed that micro-fibril angle , basic density and the ratio of wall to diameter of P .densifiora plantations in the different slopes were magnificently different at the 0.01 level .The average values of ratio of wall to diameter of P .densifiora in the middle slope were 11.62 %and 16.45 %higher than those in the below slope and upper slope .And the average value of micro-fibril angle of the former was 54.31 % and 38.77 % less than the latter , and the average value of basic density was 10.5 % and 7.02 % higher .The variations results showed that P .densifiora plantation timber in the middle slope was the best structure material , and others was more suitable for the pulp materials .[ Ch , 9 fig .3 tab .6 ref .]

Radial variations of the timber properties of Pinus densifiora planted in different slope places

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References

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通讯作者: 陈斌, bchen63@163.com

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Radial variations of the timber properties of Pinus densifiora planted in different slope places

1. .School of Engineering , Zhejiang Forestry College , Lin,an 311300, Zhejiang , China;

2. College of Agriculture , Yanbian University , Longjing 133400, Jilin , China

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Radial variations of the timber properties of Pinus densifiora planted in different slope places

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通讯作者: 陈斌, bchen63@163.com

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Radial variations of the timber properties of Pinus densifiora planted in different slope places

1. .School of Engineering , Zhejiang Forestry College , Lin,an 311300, Zhejiang , China; 2. College of Agriculture , Yanbian University , Longjing 133400, Jilin , China

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1. .School of Engineering , Zhejiang Forestry College , Lin,an 311300, Zhejiang , China;

2. College of Agriculture , Yanbian University , Longjing 133400, Jilin , China