Outside and inside bark diameter at breast height for <EM>Platycladus orientalis</EM> and <EM>Pinus tabulaeformis</EM> in the Beijing area

MA Feng-feng; JIA Li-ming

Volume 26 Issue 1

Feb. 2009

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MA Feng-feng, JIA Li-ming. Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area[J]. Journal of Zhejiang A&F University, 2009, 26(1): 13-16.

Citation:

MA Feng-feng, JIA Li-ming. Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area[J]. Journal of Zhejiang A&F University, 2009, 26(1): 13-16.

Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area

MA Feng-feng^1,2,
JIA Li-ming^1
,

1.
The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University，Beijing 100083，China;
2.
Hunan Academy of Forestry，Changsha 410004，Hunan，China

Received Date: 2008-03-13
Rev Recd Date: 2008-10-20
Publish Date: 2009-02-20

Abstract

Linear models were used to determine the relationships between outside and inside bark diameter at breast height of 57 Platycladus orientalis and 60 Pinus tabulaeformis trees in the Beijing area. Results showed that mathematical models of outside bark（DOB） and inside bark（DIB） diameters at breast height in Platycladus orientalis（PO） and Pinus tabulaeformis（PT） were DIBPO = 0.918 DOBPO and DIBPT = 0.916 DOBPT. Two equations of bark thickness，such as BPO = 0.082 DOBPO and BPT = 0.084 DOBPT，as well as two adjusted bark coefficients，KPO = 1.089 and KPT = 1.092，were obtained indirectly from the above two bark thickness models. These data also indicated that the models formed and the coefficients obtained were stable for diameter growth model optimization of both trees in the Beijing area. ［Ch，1 fig. 1 tab. 6 ref.］
- forest measuration,
- inside bark diameter at breast height,
- outside bark diameter at breast height,
- bark adjustment factor,
- Platycladus orientalis,
- Pinus tabulaeformis

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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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Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area

1. The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University，Beijing 100083，China;

2. Hunan Academy of Forestry，Changsha 410004，Hunan，China

Received Date: 2008-03-13

Rev Recd Date: 2008-10-20

Publish Date: 2009-02-20

Key words:

forest measuration /
inside bark diameter at breast height /
outside bark diameter at breast height /
bark adjustment factor /
Platycladus orientalis /
Pinus tabulaeformis

Abstract: Linear models were used to determine the relationships between outside and inside bark diameter at breast height of 57 Platycladus orientalis and 60 Pinus tabulaeformis trees in the Beijing area. Results showed that mathematical models of outside bark（DOB） and inside bark（DIB） diameters at breast height in Platycladus orientalis（PO） and Pinus tabulaeformis（PT） were DIBPO = 0.918 DOBPO and DIBPT = 0.916 DOBPT. Two equations of bark thickness，such as BPO = 0.082 DOBPO and BPT = 0.084 DOBPT，as well as two adjusted bark coefficients，KPO = 1.089 and KPT = 1.092，were obtained indirectly from the above two bark thickness models. These data also indicated that the models formed and the coefficients obtained were stable for diameter growth model optimization of both trees in the Beijing area. ［Ch，1 fig. 1 tab. 6 ref.］

Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area

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通讯作者: 陈斌, bchen63@163.com

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Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area

1. The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University，Beijing 100083，China;

2. Hunan Academy of Forestry，Changsha 410004，Hunan，China

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Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area

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通讯作者: 陈斌, bchen63@163.com

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Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area

1. The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University，Beijing 100083，China; 2. Hunan Academy of Forestry，Changsha 410004，Hunan，China

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1. The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University，Beijing 100083，China;

2. Hunan Academy of Forestry，Changsha 410004，Hunan，China