欢迎访问林业科学,今天是

›› 1989, Vol. 25 ›› Issue (1): 79-81.

• 研究简报 • 上一篇    下一篇

以树冠投影面积导算林分最大密度的研究

刘君然   

  1. 内蒙古根河林业局
  • 收稿日期:1987-07-06 修回日期:1900-01-01 出版日期:1989-01-25 发布日期:1989-01-25

STUDIES ON COUNTING GREATEST DENSITY OF STAND USING PROJECTED AREAS OF TREE-CROWN

Liu Junran   

  1. Genhe Forestry Bureau, The Inner Mongolia
  • Received:1987-07-06 Revised:1900-01-01 Online:1989-01-25 Published:1989-01-25

关键词: 林分最大密度, 树冠投影面积

Abstract: Because the tree-crown of mean wood assortment in China are obviously greater, the numbers of trees in a stand are counted by projected areas of tree-crown of dominant trees, the trees above mean trees and double indexes, mean trees, all trees of a stand (N=10000/(π/4)(CWD)2, CWD--diameter of tree-crown). Except special kinds of trees, the numbers of trees are different greatly with greatest density of stand. Form the above, the conclusions can be drawn: It is lack of fully theoretical bases that the numbers of trees counted by projected areas of tree-crown are as greatest density of a stand.

Key words: Greatest density of stand, Projected areas of tree-crown