Growth Characteristies of <em>Populus</em> Constituting the Agricultural Protcetion Forest in the Northern Area of the Huaihe River.

Wan Fuxu; Hu HaibO; Zhang Jinchi; Jiang Furong; Sun Wenkang

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Wan Fuxu, Hu HaibO, Zhang Jinchi, Jiang Furong, Sun Wenkang. Growth Characteristies of Populus Constituting the Agricultural Protcetion Forest in the Northern Area of the Huaihe River.[J]. Journal of Zhejiang A&F University, 1996, 13(3): 280-285.

Citation:

Wan Fuxu, Hu HaibO, Zhang Jinchi, Jiang Furong, Sun Wenkang. Growth Characteristies of Populus Constituting the Agricultural Protcetion Forest in the Northern Area of the Huaihe River.[J]. Journal of Zhejiang A&F University, 1996, 13(3): 280-285.

Growth Characteristies of Populus Constituting the Agricultural Protcetion Forest in the Northern Area of the Huaihe River.

1.
Nanjiang Forestry University,Nanjiang210037,PRC

Received Date: 1995-11-21
Rev Recd Date: 1996-03-04
Publish Date: 1996-09-30

Abstract

(1)With the growth of Populus trees,the absolute variations of their height,breast-height diameter and crown breadth of different individuals in the same belt gradually increased whereas the relative variations gradually decreased.(2)After two or three years of Planting,the forest entered its rapid-growth period.(3)The growth of the height,breast-height diameter and volume could be fit by the Logistic Curve.(4)The growth speed order (from fast to low) of different clones was:NL-116,NL-121,W-46,NL-203=I-69,I-214.NL-105 and NL-106 in backbone forest belts had a faster growth speed than those in Protection forest network。(5)The crown breadth of NL-203 was Iess than the others,so it's suitful for NL-203 to be widely planted on the side of farmland.(6)The crown breadth in the direction of forest belts was less than that in its vertical direction.(7)In the forest belts with the same age,crown breadth was closely related with breast-height diameter but not with height.(s)There was a close relationship between beight and breast-heigbt diameter.Compared with populus trees in a tract of forests,those in the forest belts were obviously tapered.
- Populus,
- agricultural Protection forests,
- growth curves,
- tree height,
- breast-height diameters,
- canopy,
- Xuzhou

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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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Growth Characteristies of Populus Constituting the Agricultural Protcetion Forest in the Northern Area of the Huaihe River.

1. Nanjiang Forestry University,Nanjiang210037,PRC

Received Date: 1995-11-21

Rev Recd Date: 1996-03-04

Publish Date: 1996-09-30

Key words:

Abstract: (1)With the growth of Populus trees,the absolute variations of their height,breast-height diameter and crown breadth of different individuals in the same belt gradually increased whereas the relative variations gradually decreased.(2)After two or three years of Planting,the forest entered its rapid-growth period.(3)The growth of the height,breast-height diameter and volume could be fit by the Logistic Curve.(4)The growth speed order (from fast to low) of different clones was:NL-116,NL-121,W-46,NL-203=I-69,I-214.NL-105 and NL-106 in backbone forest belts had a faster growth speed than those in Protection forest network。(5)The crown breadth of NL-203 was Iess than the others,so it's suitful for NL-203 to be widely planted on the side of farmland.(6)The crown breadth in the direction of forest belts was less than that in its vertical direction.(7)In the forest belts with the same age,crown breadth was closely related with breast-height diameter but not with height.(s)There was a close relationship between beight and breast-heigbt diameter.Compared with populus trees in a tract of forests,those in the forest belts were obviously tapered.

Growth Characteristies of Populus Constituting the Agricultural Protcetion Forest in the Northern Area of the Huaihe River.

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Growth Characteristies of Populus Constituting the Agricultural Protcetion Forest in the Northern Area of the Huaihe River.

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Growth Characteristies of Populus Constituting the Agricultural Protcetion Forest in the Northern Area of the Huaihe River.

1. Nanjiang Forestry University,Nanjiang210037,PRC

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