On Improvement Cutting of Aerial Sowing Masson's Pineta

Chen Guofu; Wu Chiping; Xu Shanjia; Li Mingfu; Ye Sihua

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Volume 10 Issue 2

May 2019

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Article Navigation > Journal of Zhejiang A&F University > 1993 > 10(2): 179-183

Chen Guofu, Wu Chiping, Xu Shanjia, Li Mingfu, Ye Sihua. On Improvement Cutting of Aerial Sowing Masson's Pineta[J]. Journal of Zhejiang A&F University, 1993, 10(2): 179-183.

Citation:

Chen Guofu, Wu Chiping, Xu Shanjia, Li Mingfu, Ye Sihua. On Improvement Cutting of Aerial Sowing Masson's Pineta[J]. Journal of Zhejiang A&F University, 1993, 10(2): 179-183.

On Improvement Cutting of Aerial Sowing Masson's Pineta

1.
Forestry Department of Zhejiang Province, Hangzhou 310004, PRC

Received Date: 1992-09-28
Publish Date: 1993-06-20

Abstract

The measurements of 4years after improvement cutting proved that masson's pineta increments of DBH and tree height both bceame larger than before. The increment percentages of DBH for stand densities 3300, 4050, 4800 and 5550 trees per hectare were 3.43%, 2.85%, 2.64%and 2.56% respectively, with contrasts of 240.00%, 207.00%, 191.00% and 186.00% respectively. The increment percentages of tree height were 2.24%, 1.90%, 1.75% and 1.75% respectively, with contrasts of 149.00%, 127.00%, 117.00% and 117.00% respectively. The amount of middle growing made up 65.00% and over in the improvement cutting stands, but only 30.00% or so in the contrast stands. Stand densities of 3000 to 3750 trees per hectare were appropriate in the plots of good quality class.
- masson's pine (Pinus massoniana Lamb.),
- improvement cutting,
- effect,
- technique

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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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On Improvement Cutting of Aerial Sowing Masson's Pineta

1. Forestry Department of Zhejiang Province, Hangzhou 310004, PRC

Received Date: 1992-09-28
Publish Date: 1993-06-20

Key words:

masson's pine (Pinus massoniana Lamb.) /
improvement cutting /
effect /
technique

Abstract: The measurements of 4years after improvement cutting proved that masson's pineta increments of DBH and tree height both bceame larger than before. The increment percentages of DBH for stand densities 3300, 4050, 4800 and 5550 trees per hectare were 3.43%, 2.85%, 2.64%and 2.56% respectively, with contrasts of 240.00%, 207.00%, 191.00% and 186.00% respectively. The increment percentages of tree height were 2.24%, 1.90%, 1.75% and 1.75% respectively, with contrasts of 149.00%, 127.00%, 117.00% and 117.00% respectively. The amount of middle growing made up 65.00% and over in the improvement cutting stands, but only 30.00% or so in the contrast stands. Stand densities of 3000 to 3750 trees per hectare were appropriate in the plots of good quality class.

Chen Guofu, Wu Chiping, Xu Shanjia, Li Mingfu, Ye Sihua. On Improvement Cutting of Aerial Sowing Masson's Pineta[J]. Journal of Zhejiang A&F University, 1993, 10(2): 179-183.

Citation:

Chen Guofu, Wu Chiping, Xu Shanjia, Li Mingfu, Ye Sihua. On Improvement Cutting of Aerial Sowing Masson's Pineta[J]. Journal of Zhejiang A&F University, 1993, 10(2): 179-183.

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