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吴登高, 贾晨, 周云霞, 罗建勋, 辜云杰. 毛叶山桐子生长特性的研究[J]. 四川林业科技, 2015, 36(2): 27-31. DOI: 10.16779/j.cnki.1003-5508.2015.02.006
引用本文: 吴登高, 贾晨, 周云霞, 罗建勋, 辜云杰. 毛叶山桐子生长特性的研究[J]. 四川林业科技, 2015, 36(2): 27-31. DOI: 10.16779/j.cnki.1003-5508.2015.02.006
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

毛叶山桐子生长特性的研究

Research on the Growth Characteristics of Idesia polycarpa

  • 摘要: 采用树干解析方法对陕西省宁强县人工栽植毛叶山桐子的生长特性进行了研究。结果表明:胸径连年生长量和平均生长量在15 a左右几乎同时达到最大值,胸径的速生期约为10 a~17 a,在1 9a时进入成熟期;树高连年生长量和平均生长量在20 a左右同时达到最大值,树高的速生期约为10 a~20 a,在22 a时进入成熟期;材积连年生长量在20 a左右达到最大值约0.009086 m3,材积平均生长量尚未达到最大值,材积连年生长量和平均生长量在39 a仍未相交,即没有达到数量成熟,其合理的轮伐期要39a以后;该树种的干形在25 a左右基本稳定,胸高形数稳定在0.4。

     

    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.

     

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