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Bulletin of Botanical Research ›› 2021, Vol. 41 ›› Issue (1): 89-97.doi: 10.7525/j.issn.1673-5102.2021.01.012

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Diameter Structural Distribution of Coniferous Broad-leaved Mixed Forest in Taxus cuspidate Habitat in Changbai Mountain

Xiao-Hong FAN1, Li-Tao WANG1, Juan-Yan AN1, Dong MENG2, Qing YANG1, Chun-Jian ZHAO3, Yu-Chun YANG4, Yu-Jie FU1,2,3()   

  1. 1.College of Forestry,Beijing Forestry University,Beijing 100083
    2.Advanced Innovation Center for Tree Breeding by Molecular Design,Beijing Forestry University,Beijing 100083
    3.Key Laboratory of Forest Plant Ecology,Ministry of Education,Northeast Forestry University,Harbin 150040
    4.Forestry Academy of Jilin Province,Changchun 130033
  • Received:2020-06-11 Online:2021-01-20 Published:2021-01-05
  • Contact: Yu-Jie FU E-mail:yujie_fu@163.com
  • About author:FAN Xiao-Hong(1993—),female,master,major on the forest resource monitoring and utilization.
  • Supported by:
    13th National Key R&D Program(2017FYD06000706);Wild Plant Protection and Management Engineering(2018HXFWLXY028)


This research aimed at the management of Taxus cuspidate stand by selecting suitable models for imitating diameter structural distribution of coniferous broad-leaved mixed forest in T.cuspidate stand, Changbai Mountain Nature Reserve. On the basis of 15 coniferous broad-leaved mixed forest in T.cuspidate stands in Longhuanggou Forest Farm, Changbai Mountain Nature Reserve, negative exponential model, three-parameter Weibull model and χ2 test were used to analyze the diameter structural distribution of 15 plots. The density of 15 plots was 400-981 trees·hm-2, and the mean DBH was 10.5-19.9 cm. The skewness of all plots was positive, which showed the diameter distribution function curves was partial to left. The three-parameter Weibull distribution model was better for the diameter distribution of the 9-11 plots, while negative exponential model was suitable for other plots. The irregular diameter distribution can be fitted better by three-parameter Weibull model, while the inverse J-shaped curves can be fitted well by negative exponential model. It showed that the diameter structure of coniferous broad-leaved mixed forest of Taxus cuspidate stand in the study area were not reasonable, and the management of T.cuspidate stand should be strengthened.

Key words: Taxus cuspidate, coniferous broad-leaved mixed, diameter structure, negative exponential model, three-parameter Weibull model, χ2 test

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