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|

Ⅰ-69杨胶合板用材林最佳造林密度研究(PDF)

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

Issue:
1998年01期
Page:
1-4
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
STUDIES ON THE OPTIMUM PLANTING DENSITY OF I-69 POPLAR PLANTATION FOR PLYWOOD
Article ID:
1000-2006(1998)01-0001-04
Author(s):
Liang Jun Xu Xizeng Lü Shixing
College of Forest Resources and Environment Nanjing Forestry University Nanjing 210037
Keywords:
Poplar clone I-69Plywood timber forest Model Optimum planting density
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1998.01.001
Document Code:
A
Abstract:
According to the survey data of 290 valuationareas and the stand denstity effect model, to aim at maximum yield for stand plywood timber and to deduce the optimum planting density model. Through fitting the model, planting density of plywood timber forest of poplar clone I-69 should be not more than 286 trees per hm2. The land with site index not more than 16m is not suited to management of plywood timber forest. For the sake of practice basic objective of cultivation plywood timber D>26. 8 cm, stand dominant height should be more than 28.9 m. The best to select land with site index is more than or equal to 20m for management of plywood timber forest of poplar clone I-69. On the condition of 18, 20, 22 m site indices, the shortest rotation fitted with cultivation objective of plywood timber forest of poplar clone I-69 is 11, 10, 9 years respectively;the most plantng density is 257,240,236 trees per hm2 respectively.

References

-

Last Update: 1900-01-01