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›› 1991, Vol. 27 ›› Issue (1): 84-90.

• 研究简报 • 上一篇    下一篇

复测角规样本估计蓄积生长量的新方法

张瑞稳 林昌庚   

  1. 南京林业大学
  • 收稿日期:1990-03-27 修回日期:1900-01-01 出版日期:1991-01-25 发布日期:1991-01-25

A NEW METHOD OF VOLUME GROWTH ESTIMATION FOR REMEASURED HORIZONTAL POINT SAMPLING

Zhang Ruiwen,Lin Changgeng   

  1. Nanjing Forestry University
  • Received:1990-03-27 Revised:1900-01-01 Online:1991-01-25 Published:1991-01-25

关键词: 树的张角, 进测木, 可变断面积系数

Abstract: A new angle-count method for estimating the increment of stand growing stock has been proposed based on the angle subtended by the sample tree in this paper. As compared with other angle-count method, it has several advantages, for instance, smaller variance, higher relative efficiency, and convenient for continuous checks etc. The result tested by the data of continuous checks and measurements in Guangxi CFI has proved the advantages of the theoretical analysis of this method.

Key words: The tree subtends an angle, Ongrowth, The variable factor