Gap characteristics in a secondary coniferous forest of Guandi Mountain, Shanxi Province

LI Xue-fen; HAN You-zhi; ZHANG Li; LU Ya-juan

Volume 25 Issue 1

Jun. 2018

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LI Xue-fen, HAN You-zhi, ZHANG Li, LU Ya-juan. Gap characteristics in a secondary coniferous forest of Guandi Mountain, Shanxi Province[J]. Journal of Zhejiang A&F University, 2008, 25(1): 28-32.

Citation:

LI Xue-fen, HAN You-zhi, ZHANG Li, LU Ya-juan. Gap characteristics in a secondary coniferous forest of Guandi Mountain, Shanxi Province[J]. Journal of Zhejiang A&F University, 2008, 25(1): 28-32.

Gap characteristics in a secondary coniferous forest of Guandi Mountain, Shanxi Province

1.
Forestry College, Shanxi Agricultural University, Taigu 030801, Shanxi, China;
2.
Science Department, Guang'an Vocational and Technical College, Guang'an 638000, Sichuan, China

Received Date: 2007-02-05
Rev Recd Date: 2007-05-18
Publish Date: 2008-02-10

Abstract

The researches on gap in temperate zone coniferous forests within mountainous region are little. Through a field survey of 63 gaps in a secondary coniferous natural forest,namely Pinus tabulaeformis forests(19 gaps),Larix principis-rupprechtii forests(26 gaps), and Picea wilsonii or Picea meyeri forests(18 gaps), within the Pangquangou Nature Reserve of Guandi Mountain, Shanxi Province, gap characteristics were analyzed. The canopy gaps(CG) varied from 5.78 to 234.48 m2 and averaged about 60.07 m2. The expanded gaps(EG) varied from 18.49 to 349.68 m2 and averaged about 114.92 m2. Gaps were caused from one or more of these sources:logging, breakage at the trunk, uprooting from blow-down, and standing dead. Most of the gaps were made by 1-4 trees(gap maker). The probability of gap development was greatest when trees forming the canopy were 20-40 cm DBH and 20-30 m tall with most gaps being formed within the last 5-20 years. Also, gap sizes differed greatly in different forest types. Most gap areas in Picea spp. forests were small, but gap areas distributed in Pinus tabulaeformis forests are various.
- forest ecology,
- secondary natural forest,
- coniferous forest,
- gap characteristics,
- Guandi Mountain

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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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Gap characteristics in a secondary coniferous forest of Guandi Mountain, Shanxi Province

1. Forestry College, Shanxi Agricultural University, Taigu 030801, Shanxi, China;

2. Science Department, Guang'an Vocational and Technical College, Guang'an 638000, Sichuan, China

Received Date: 2007-02-05

Rev Recd Date: 2007-05-18

Publish Date: 2008-02-10

Key words:

Abstract: The researches on gap in temperate zone coniferous forests within mountainous region are little. Through a field survey of 63 gaps in a secondary coniferous natural forest,namely Pinus tabulaeformis forests(19 gaps),Larix principis-rupprechtii forests(26 gaps), and Picea wilsonii or Picea meyeri forests(18 gaps), within the Pangquangou Nature Reserve of Guandi Mountain, Shanxi Province, gap characteristics were analyzed. The canopy gaps(CG) varied from 5.78 to 234.48 m2 and averaged about 60.07 m2. The expanded gaps(EG) varied from 18.49 to 349.68 m2 and averaged about 114.92 m2. Gaps were caused from one or more of these sources:logging, breakage at the trunk, uprooting from blow-down, and standing dead. Most of the gaps were made by 1-4 trees(gap maker). The probability of gap development was greatest when trees forming the canopy were 20-40 cm DBH and 20-30 m tall with most gaps being formed within the last 5-20 years. Also, gap sizes differed greatly in different forest types. Most gap areas in Picea spp. forests were small, but gap areas distributed in Pinus tabulaeformis forests are various.

Gap characteristics in a secondary coniferous forest of Guandi Mountain, Shanxi Province

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views