Journal of Guangxi Normal University(Natural Science Edition) ›› 2020, Vol. 38 ›› Issue (3): 110-116.doi: 10.16088/j.issn.1001-6600.2020.03.014

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Characteristics of Clonal Reproduction of Alchornea trewioides in Karst Region of Guilin, China

ZHOU Junniu1,2,3, MEI Junlin3, MA Jiangming1,2,3*, ZHANG Yajun3, WANG Haimiao1,2,3, JIAN Rui1,2,3   

  1. 1. Institute of Sustainable Development and Innovation, Guangxi Normal University, Guilin Guangxi 541006, China;
    2. Key Laboratory of Rare and Endangered Animal and Plant Ecology and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin Guangxi 541006, China;
    3. College of Life Science, Guangxi Normal University, Guilin Guangxi 541006, China
  • Received:2019-01-24 Online:2020-05-25 Published:2020-06-11

Abstract: In this research, two community types of felling interferes clonal production (FICP) and non-interfering clonal production (NICP) in Alchornea trewioides were studied in the karst habitat of Guilin. The multivariate statistical method was used to analyze ground diameter, numbers of ramets and basal diameter of the front part and the rear part, to discuss the clonal characteristics of A. trewioides for adaption to karst habitat, in order to provide guidance for vegetation restoration in the karst areas. The results showed that (1) the roots of A. trewioide were weak in branching, and strong directions. The ramets were not dense, showing as "guerrilla" clone plants. (2) FICP promoted clonal reproduction of A. trewioide. (3) The ramets’ survival rate of FICP was lower than that of NICP, indicating more obvious risk allocation in FICP than NICP. (4) There was an asymmetry between lateral roots of the front and rear parts: The lateral root of the rear part was smaller than the front one, when the ground diameter was less than 0.2 cm. However, when the ground diameter was more than 0.2 cm, the lateral root of the rear part was larger than the front one.

Key words: Alchornea trewioides, ramets, clonal propagation, karst region of Guilin, China

CLC Number: 

  • Q944.3
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