Plant Diversity ›› 2015, Vol. 37 ›› Issue (05): 629-639.doi: 10.7677/ynzwyj201515002

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Investigation on Wild Resource of Valuable Timber Tree Phoebe zhennan (Lauraceae)

 DING  Xin-1、2, XIAO  Jian-Hua-1、2   

  1. 1 Laboratory of Plant Phylogenetics and Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences,
    Kunming 650223, China; 2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2015-01-05 Online:2015-09-25 Published:2015-03-24
  • Supported by:

    中国科学技术基础性工作专项 (2012FY110400, 2011FY120200); 中国科学院西双版纳热带植物园 “一三五” 规划 “方向四” 

Abstract:

Phoebe zhennan is an endemic valuable timber tree to China and was listed as one of the national secondclass important protected plants. In the study, we investigated the wild resource of Pzhennan, distinguished its confused species and estimated its potential distribution. The results showed that Pzhennan had a sporadic distribution in the areas of Sichuan Basin and Northern Guizhou. Due to deforestation and habitat destruction, Pzhenann mostly shrinked back to fengshui forests with low regeneration, rarely remained in natural forests and some scattered in bamboo forests, few natural regenerating populations were found during our investigation. Two confused species, Lindera megaphylla and Phoebe hui, were distinguished from Pzhennan with the evidence from morphology and DNA barcoding. The results of potential distribution estimation showed that Pzhennan might distribute in Sichuan Basin and Northern Guizhou, but the distribution in Northern Guizhou was fragmentizing. In the future, with global warming, habitat fragmentation of Pzhennan will be intensified and the distribution would tend to move northward with shrinking. Protection countermeasures and suggestions of Pzhennan are discussed.

Key words: Phoebe zhennan, Confused species, Geographical distribution, Investigation on wild resource, Potential distribution

CLC Number: 

  • Q 948