Natural Regeneration Pattern and Grey Relevancy Analysis of Influencing Factors of Picea mongolica Forest in Inner Mongolia

Abstract

Abstract: In order to reveal the internal mechanism about the occurrence and development of Picea mongolica population,find and analyze the bottleneck factors of natural regeneration,the regeneration pattern and influencing factors of Picea mongolica forests in Baiyinaobao national nature reserve were researched qualitatively and quantitatively through spatial pattern and grey relevancy analysis method. The results showed that the regeneration seedlings and saplings took on a clumped distribution with a high mortality. The main factors that influence the natural regeneration were the litter layer thickness,coverage of shrubs and humus layer. The relevancy degree was 0.749,0.746 and 0.678 respectively. The altitude and slope degree had nearly no effect on the natural regeneration whose relevancy degree was only 0.615 and 0.621 respectively.

Key words: Picea mongolica, natural regeneration, distribution pattern, grey relevancy analysis

CLC Number:

HUANG Sanxiang, LUO Juchun, ZHAO Xiuhai. Natural Regeneration Pattern and Grey Relevancy Analysis of Influencing Factors of Picea mongolica Forest in Inner Mongolia[J]. FOREST RESOURCES WANAGEMENT, 2009, (5): 64-68.

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