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林业资源管理 ›› 2009›› Issue (6): 51-53.

• 科学技术 • 上一篇    下一篇

天然林直径分布的线性表达及其应用

乌吉斯古楞, 郑小贤   

  1. 北京林业大学 省部共建森林培育与保护教育部重点实验室,北京 100083
  • 收稿日期:2009-06-03 修回日期:2009-10-28 出版日期:2009-12-28 发布日期:2020-12-18
  • 通讯作者: 郑小贤,男,教授,博导,主要从事森林可持续经营研究与教学工作。Email:zheng8355@bjfu.edu.cn
  • 作者简介:乌吉斯古楞(1976-),女(蒙古族),内蒙古通辽人,博士生,主要从事森林可持续经营管理方面的研究。
  • 基金资助:
    国家“十一五”科技支撑计划专题“长白山天然林生态采伐和次生林结构调整及多目标经营技术”(2006BAD03A0804)

Linear Expression of Natural Forest Diameter Distribution and Its Application

WU Jisiguleng, ZHENG Xiaoxian   

  1. The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China
  • Received:2009-06-03 Revised:2009-10-28 Online:2009-12-28 Published:2020-12-18

摘要: 利用非线性函数的线性化方法,使传统的天然林直径分布的反“J”型曲线转化为直线形式,并探讨了直线参数变化的直观表现。通过对长白山天然林123个固定试验地林分直径分布的线性拟合,平均相关系数为0.98,表明天然林的直径分布线性化表达是可行的。可利用参数设计择伐株数和预估采伐前后的直径分布。参数在天然林择伐作业设计中可操作性强,研究结果可以为天然林经营,特别是为择伐作业提供依据。

关键词: 天然林, 直径分布, 择伐, 线性表达

Abstract: By using linearization method of the non-linear function, the anti-J-curve as traditional natural forest diameter distribution is transformed into a linear form, and the visual performance of the straight-line parameter variety is explored. After doing linear fitting on 123 fixed test forest stands from the natural forest in Changbai Mountains, we get the average correlation coefficient as 0.98. This figure shows that it is feasible to express natural forest diameter distribution as linearization expression. The selective plants for cutting and the predicted diameter distribution before and after logging can be designed by using parameters. Parameters in the design of selective cutting of natural forests are very operable. The research results can provide a basis for the natural forest management and selective cutting operation in particular.

Key words: nature forest, diameter distribution, selective cutting, linear expression

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