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›› 1981, Vol. 17 ›› Issue (3): 302-305.

• 论文及研究报告 • 上一篇    下一篇

用胸高直径和树高计算中央直径的研究

秦洪清   

  1. 云南省第四森林调查大队
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1981-08-25 发布日期:1981-08-25

A STUDY ON THE CALCULATION OF MID-DIAMETER WITH THE BREAST-HIGHT DIAMETER AND THE HEIGHT OF TREE

Qin Hong-qing   

  1. Fourth Forest Survey Brigade, Yunnan Pravince
  • Received:1900-01-01 Revised:1900-01-01 Online:1981-08-25 Published:1981-08-25

Abstract: A formula for the calculation of the mid-diameter has been investigated. The advantages of this method are as follows:1. Less troublesome in measurements of diameters of upper part.2. Avoiding much error in measurement with instruments.3. Easy to make use of electronic computation.The data detection of some calculations are included.