学术
冷杉根系抗拔法测强曲线的建立与应用
杨锋伟[1] 刘秀萍[2] 陈丽华[2] 宋维峰[2]
[1]国家林业局科学技术司,北京100714 [2]北京林业大学水土保持学院,教育部水土保持与荒漠化防治重点实验室,北京100088
摘 要:
采用抗拔法进行了冷杉根系抗拉强度的实验研究，得出抗拉法可以用于对冷杉根系抗拉强度进行检测，通过采用多种回归模型进行分析比较，求得最佳冷杉根系侧强曲线公式，并取得了较好的应用效果。分析了影响冷杉根系侧强曲线的因素，其中冷杉根系的根径和根长为影响其侧强曲线的主要因素，根系的抗拉强度的大小是根径与根长共同作用的结果。[著者文摘]
文章出处:
《水土保持研究》-2007年14卷2期 -197-199页
分 类 号:
文献标识码:
A
文章编号:
1005-3409（2007）02-0197-03
The Construction and Application of Strength Measurement Curve of Abies fabric Root System with Pull-out Method
YANG Feng-wei , LIU Xiu-ping , CHEN Li-hua , SONG Wei-feng （1. Department of Science and Technology of State Forestry Administration, Beijing 100714; 2. College of Water and Soil Conservation ,BFU, Key Laboratory of Soil and Water Conservation and Combating deserti fication , Ministry of Education, Beij ing 100083, China）
Abstract:
A research was conducted on pull-out method for determining the strength of Abies fabric root system ,a conclusion was reached that pull-out method might determine the strength of Abies fabric root system. Then, a formula for testing strength by regression analysis of several models was obtained with fairly good result. Analyzed the effect factors of Abies fabric root system strength,of which the root diameter and root length are the important effect factors, the interaction of root diameter and root length bring on the strength of Abies fabric root system.[著者文摘]
Key words:
Abies fabric ; pull-out method; regression analysis; measure curve of strength
基金资助:
国家重大基础研究“973”项目（2002CB111502）;国家自然科学基金项目（30571531）
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