Journal of Guangxi Normal University(Natural Science Edition) ›› 2011, Vol. 29 ›› Issue (2): 88-93.

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Abies ziyuanensis Structural Population in Dayuan,Yanling County, Hunan,China

LIU Yan-hua1, LIU Zhao-hui1, ZHANG Qi-wei1, TANG Shao-qing1,2   

  1. 1.Ministry of Education Key Laboratory for Ecology of Rare andEndangered Species and Environmental Protection, College of Life Sciences,Guangxi Normal University,Guilin Guangxi 541004,China;
    2.Guangxi Key Laboratory of Environmental Engineering,Protection and Assessment,Guangxi Normal University,Guilin Guangxi 541004,China
  • Received:2010-12-16 Published:2018-11-19

Abstract: Abies ziyuanensis is a critically endangered conifer species endemically in China and the population in Dayuan,Yanling county.Hunan province is recognized as the largest one.Four natural A.ziyuanensis population were surveyed and the size structure.Life table and survival curve were analyzed.The result shows that there are 477 individuals of ≥1 m in height in the four population sites.The mortality is high at the seedling stage.The number of individuals decreases greatly in Zhongjiushi population along with the size grade indicating an obviously declining tendency.However,the size structure is stable in Xianggupeng population though the size scale is declining.Both size structure and scale are stable in Hepingao and Jimajie populations.

Key words: Abies ziyuanensis, population in Dayuan, size structure, population stability

CLC Number: 

  • Q948.157
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