我们的网站为什么显示成这样?

可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:

|Table of Contents|

X射线测定木材密度的基本理论和方法简介(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1984年02期
Page:
114-119
Column:
研究简报
publishdate:
1900-01-01

Article Info:/Info

Title:
BASIC PRINCIPLES AND METHODS TO DETERMINE WOOD DENSITY UNDER X-RAY
Article ID:
1000-2006(1984)02-0114-06
Author(s):
Wang Wanhua
Department of Wood Science and Technology
Keywords:
-
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1984.02.016
Document Code:
A
Abstract:
This paper introduces the basic principles and methods of X-ray densitometry used at the French National Forestry Research Centre, in which the author had a two-week stay and conducted some experiments under Professor Polge’s guidance.Testing results with Chinese-fir wood (from China) as samples showed that the average annual density changed slightly as the radial diameters of the tree increased and the average annual density differed only by 16.59 percent, while the maximum ring width was 2-18 times larger than the minimum ring width. Thus the author drew a conclusion that the Chinese-fir plants which grow faster would have evener wood quality and an intensive silvicultural system should be adopted to obtain more yeariy increments of the trees.

References

-

Last Update: 1900-01-01