Effects of gap size, gap age, and bamboo Fargesia denudata on Abies faxoniana recruitment in South-western China

  • Wen Kang The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing.
  • Cheng Tian The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing.
  • Dongwei Kang The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing.
  • Mengjun Wang Kunming Survey and Design Institute of State Forestry Administration, Kunming.
  • Yunxi Li Wanglang Natural Reserve, Pingwu County, Mianyang, Sichuan.
  • Xiaorong Wang Wanglang Natural Reserve, Pingwu County, Mianyang, Sichuan.
  • Junqing Li The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing.


Aim of study: to study the effects of gap size, gap age and bamboo Fargesia denudata on natural regeneration of Abies faxoniana, both of which are the ubiquitous dominants in our research area.

Area of study: subalpine coniferous forests in Wanglang Natural Reserve in Southwestern China.

Material and Methods: 10 transect belts were randomly established, and a total of 97 gaps were recorded and used.

Main results: (1) the number of bamboos with coverage of <17% significantly increased with increases of gap size and age, but the latter had little influence on the numbers of F. denudata with coverage of >17%. (2) F. denudata strongly inhibited A. faxoniana seedlings and saplings in small, young and old gaps, where the amount of A. faxoniana recruitment was relatively abundant, than in other types of gap. (3) The numbers of A. faxoniana seedlings in A-gaps, significantly decreased with the increases in gap size. However, in gaps where F. denudate was also present, A. faxoniana seedlings and saplings were insensitive to gap size or age. Research highlights: thick F. denudata would not be influenced by gap size or age. Because of the low occurrences of A. faxoniana seedlings and saplings, the negative effect of gap size, gap age and F. denudata on A. faxoniana recruitment was unclear.

Key words: Abies faxoniana; Fargesia denudata; gap age; gap size; regeneration.


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How to Cite
KangW., TianC., KangD., WangM., LiY., WangX., & LiJ. (2015). Effects of gap size, gap age, and bamboo Fargesia denudata on Abies faxoniana recruitment in South-western China. Forest Systems, 24(2), e025. https://doi.org/10.5424/fs/2015242-06682
Research Articles