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Forest and Grassland Resources Research >

2019 , Vol. 0 >Issue 4: 59 - 68

DOI: https://doi.org/10.13466/j.cnki.lyzygl.2019.04.009

Effects of Thinning on the Growth of Pinuse Elliottii Plantation and the Diversity of Its Undergrowth Vegetation

  • Kaili DONG ,
  • Guoxiang ZHANG ,
  • Ruihui WANG ,
  • Kaili LIU ,
  • Suya ZHAO ,
  • Yingyun GONG
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  • 1. Central South University of Forestry & Technology,Changsha,Hunan 410004,China
    2. Huarong County Forestry Bureau,Yueyang,Hunan 414200,China

Received date: 2019-06-14

  Revised date: 2019-07-05

  Online published: 2020-10-20

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Abstract

The study was based on 8a pinus elliottii plantation in Jing'an County,Jiangxi Province,sorting it into four thinning intensities,0%(C),15%(L),35%(M),55%(H).Observing the effects of tending and thinning on tree growth and undergrowth vegetation,the results show:with increasing thinning intensity,the distribution of diameter moves right compared with C.The diameter of L and M obey normal distribution but C and H don’t.Clearly,thinning has promoting effects on rise in both diameter and volume with a major difference in annual average growth of diameter between C and H,M,and the average annual growth of volume of C was significantly different from H,but the difference in average annual growth of height is slight.On the whole,thinning makes the number of undergrowth of plantations increase and improve the vegetation layer index of Simpson,Shannon-Wiener and Pielou,the effect which is relatively remarkable in the first two years after experiment,afterwards is weakened.The research results can provide technical support for the management of Pinus elliottii plantation.

Key words： Pinus elliottii; thinning intensities; stand growth; undergrowth vegetation

Cite this article

Kaili DONG , Guoxiang ZHANG , Ruihui WANG , Kaili LIU , Suya ZHAO , Yingyun GONG . Effects of Thinning on the Growth of Pinuse Elliottii Plantation and the Diversity of Its Undergrowth Vegetation[J]. Forest and Grassland Resources Research, 2019 , 0(4) : 59 -68 . DOI: 10.13466/j.cnki.lyzygl.2019.04.009

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