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林业科学 ›› 2006, Vol. 42 ›› Issue (8): 14-18.doi: 10.11707/j.1001-7488.20060803

• 论文及研究报告 • 上一篇    下一篇

应用热扩散技术对油松栓皮栎比导率的研究

翟洪波1 李吉跃2 魏晓霞1 徐成立3   

  1. 1.国家林业局调查规划设计院,北京100714;2.北京林业大学资源与环境学院,北京100083;3.河北省孟滦森林经营管理局,承德068450
  • 收稿日期:2005-04-15 修回日期:1900-01-01 出版日期:2006-08-25 发布日期:2006-08-25

Study on Specific Conductivity of Pinus tabulaeformis and Quercus variabilis Using Thermal Dissipation Technology

Zhai Hongbo1,Li Jiyue2,Wei Xiaoxia1,Xu Chengli3   

  1. 1.Academy of Forest Inventory and Planning, State Forestry Administration Beijing 100714;2.College of Resources and Environment, Beijing Forestry University Beijing 100083;3.Mengluan Forestry Management Bureau, Hebei Province Chengde 068450
  • Received:2005-04-15 Revised:1900-01-01 Online:2006-08-25 Published:2006-08-25

摘要:

2001年4—10月,应用热扩散技术研究北京西山地区31年生油松栓皮栎混交林标准木的比导率并对13个环境因子的变化规律进行同步观测。结果表明,在野外自然条件下,油松和栓皮栎的比导率在标准日内均呈明显的凸形变化规律,栓皮栎的比导率始终高于油松。影响树木比导率的因素基本上可以分为2类,即生物学结构的遗传特性和环境因素。在林分生长期内的不同时段,环境因子对2个树种比导率的作用各不相同,即使是同一树种,在各个时段内对其比导率产生显著影响的环境因子也不是一成不变的,但一般可用少数几个环境影响因子来比较准确地模拟出比导率的变化。

关键词: 油松, 栓皮栎, 比导率, 热扩散技术

Abstract:

From April to October of 2001, the standard trees of a 31 years old Pinus tabulaeformis and Quercus variabilis mixed stand were studied on its specific conductivity using thermal dissipation technology, and 13 environmental factors in western mountain area of Beijing were measured simultaneously. The results showed that the specific conductivity of P. tabulaeformis and Q. variabilis had obvious change law in standard day, and that of Q. variabilis was always higher than that of P. tabulaeformis. The factors that influence specific conductivity of trees could basically be divided into two types: the genetic characteristics and environmental factors. The function of environmental factors on specific conductivity of two tree species was not the same. Even for the same tree species, the environmental factors that have eminent influence on specific conductivity were not the same. Generally, we could accurately model the change of specific conductivity using a few important environmental factors.

Key words: Pinus tabulaeformis, Quercus variabilis, specific conductivity, thermal dissipation technology