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

doi:10.7525/j.issn.1673-5102.2021.01.012

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.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)

Abstract

Abstract:

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, χ²test

CLC Number:

S791.49

Xiao-Hong FAN, Li-Tao WANG, Juan-Yan AN, Dong MENG, Qing YANG, Chun-Jian ZHAO, Yu-Chun YANG, Yu-Jie FU. Diameter Structural Distribution of Coniferous Broad-leaved Mixed Forest in Taxus cuspidate Habitat in Changbai Mountain[J]. Bulletin of Botanical Research, 2021, 41(1): 89-97.

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

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