Research on the Growth Characteristics of <i>Idesia polycarpa</i>

WU Deng-gao; JIA Chen; ZHOU Yun-xia; LUO Jian-xun; GU Yun-jie

doi:10.16779/j.cnki.1003-5508.2015.02.006

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Volume 36 Issue 2

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2015 > 36(2): 27-31

WU Deng-gao, JIA Chen, ZHOU Yun-xia, LUO Jian-xun, GU Yun-jie. Research on the Growth Characteristics of Idesia polycarpa[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(2): 27-31. doi: 10.16779/j.cnki.1003-5508.2015.02.006

Citation:

WU Deng-gao, JIA Chen, ZHOU Yun-xia, LUO Jian-xun, GU Yun-jie. Research on the Growth Characteristics of Idesia polycarpa[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(2): 27-31. doi: 10.16779/j.cnki.1003-5508.2015.02.006

Research on the Growth Characteristics of Idesia polycarpa

doi: 10.16779/j.cnki.1003-5508.2015.02.006

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Sichuan Inventor and Planning Institute, Chengdu 610081, Sichuan, China;Sichuan Academy of Forestry, Chengdu 610081, Sichuan, China

Received Date: 2014-12-25

Abstract

Studies were made of the growth characteristics of Idesia polycarpa planted in Ningqiang County of Shanxi province by the stem analysis method. The results showed that the DBH growth of Idesia polycarpa was earlier than the tree height growth. The current annual increment and mean annual increment of DBH almost reached maximum at around 15 years at the same time,while the tree height was later about 5 years. The DBH of fast-growing period was about 10 years to 17 years. The DBH growth entered the overmature period at about 19 years,while the tree height growth was at 22 years,later than DBH growth. The current annual increment of timber volume reached maximum value about 0.009086 m³ at 20 years while the mean annual increment did not yet reach the maximum value. The current annual increment and mean annual increment of timber volume were not intersected before 39 years,namely,without reaching the quantitative maturity. Consequently,its rational rotation was after 39 years. The tree stem of Idesia polycarpa was basically stable at 25 years,and the breast height form factor was about 0.4.
- Idesia polycarpa;
- Stem analysis;
- Growth characteristic;
- Growth regularity
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Research on the Growth Characteristics of Idesia polycarpa

doi: 10.16779/j.cnki.1003-5508.2015.02.006

Sichuan Inventor and Planning Institute, Chengdu 610081, Sichuan, China;Sichuan Academy of Forestry, Chengdu 610081, Sichuan, China

Received Date: 2014-12-25

Key words:

Abstract: Studies were made of the growth characteristics of Idesia polycarpa planted in Ningqiang County of Shanxi province by the stem analysis method. The results showed that the DBH growth of Idesia polycarpa was earlier than the tree height growth. The current annual increment and mean annual increment of DBH almost reached maximum at around 15 years at the same time,while the tree height was later about 5 years. The DBH of fast-growing period was about 10 years to 17 years. The DBH growth entered the overmature period at about 19 years,while the tree height growth was at 22 years,later than DBH growth. The current annual increment of timber volume reached maximum value about 0.009086 m³ at 20 years while the mean annual increment did not yet reach the maximum value. The current annual increment and mean annual increment of timber volume were not intersected before 39 years,namely,without reaching the quantitative maturity. Consequently,its rational rotation was after 39 years. The tree stem of Idesia polycarpa was basically stable at 25 years,and the breast height form factor was about 0.4.