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FOREST RESOURCES WANAGEMENT ›› 2010›› Issue (1): 53-58.

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Study on Population Structure and Resource Value of Cephalotaxus mannii Hook f, A Rare and Endangered Anti-cancer Plant in Hainan

QI Shanshan1, DAI Zhicong2, SI Chuncan1, LIN Ying1YANG Donghua3, SONG Jingyuan4, DU Daolin1,2   

  1. 1. College of Life Sciences, Hainan Normal University, Haikou 571158, Hainan, China;
    2. College of Life Sciences, Hainan Normal University, Haikou 571158, Hainan, China;
    3. Bangwangling Bureau of Forestry, Changjiang 572722, Hainan, China;
    4. Institute of Medicinal Plants Development, Chinese Academy of Medical Sciences, Beijing 100193, China
  • Received:2009-12-16 Revised:2009-01-13 Published:2020-12-14

Abstract: Population structure of Cephalotaxus mannii Hook. f. in Bawangling and Janfengling national nature reserves was surveyed by individuals' morphological indexes including DBH and height and so on in 14 plots with a total area of 10400m2. The individuals of C. mannii populations were divided into five classes by their height and DBH in order to analyze population structures. The result shows that the survival rate of 2-3 age C. mannii is very low, and it leads to a very unstable population structure, and the number of big trees is small. The economic value of C. mannii population was extrapolated according to its biomass and its alkaloid content. The economic value of homoharringtonine in Bawangling and Jianfengling was estimated at 22510.74 million yuan. So, protecting C. mannii is very necessary to restore and maintain a good C. mannii population structure, and protect biodiversity and relieve the homoharringtonine demand by human beings.

Key words: rare and endangered species, Cephalotaxus mannii Hook f, population structure, resource value

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