Tensile Mechanical Properties of Single Root of Quercus Mongolica

LI Chang-xuan; CHEN Li-hua; ZHOU Juan; GUO Wen-ti

doi:10.13961/j.cnki.stbctb.2014.04.059

您当前的位置：

首页 >

文章列表页 >

Tensile Mechanical Properties of Single Root of Quercus Mongolica

- Tensile Mechanical Properties of Single Root of Quercus Mongolica
- Bulletin of Soiland Water Conservation Vol. 33, Issue 4, Pages: 232-235(2014)
- 作者机构：
  
  北京林业大学水土保持学院水土保持与荒漠化防治教育部重点试验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.04.059
  CLC：
- Published：2014
- 稿件说明：
移动端阅览
LI Chang-xuan, CHEN Li-hua, ZHOU Juan, et al. Tensile Mechanical Properties of Single Root of Quercus Mongolica[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 232-235.
DOI：

LI Chang-xuan, CHEN Li-hua, ZHOU Juan, et al. Tensile Mechanical Properties of Single Root of Quercus Mongolica[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 232-235. DOI： 10.13961/j.cnki.stbctb.2014.04.059.

摘要

为探究蒙古栎根系的基本力学性质

对试验机夹具进行了改进并对根进行了预处理。选取直径范围为1~17 mm的蒙古栎根系在不同标距下进行了室内单根拉伸试验。结果表明

根系的抗拉力随直径的增大而增大

且呈显著的幂函数关系;抗拉强度随直径增加呈减小趋势;蒙古栎单根应力应变曲线在各个径级下皆为单峰曲线

呈弹塑性材料特征。说明蒙古栎通过其较强的抗拉性能和变形能力可对维持坡面稳定起到了积极作用。

Abstract

In order to explore the mechanical property of Quercus mongolica roots

the drawing machine fixture was improved and the roots were preprocessed before the test

and Quercus mongolica roots of which diameter between 1 and 17 mm were picked out to conduct single root tensile test indoor under different gauge length. The results show that tensile resistance of Quercus mongolica roots increase with the increase of root diameter according to a power function

and its tensile strength decreased with the increase of root diameter. Moreover

the stress-strain curve of single Quercus mongolica root was a single-peak curve under different diameter class which exhibiting the elastic-plastic material characteristics. It indicates that the Quercus mongolica root has positive effects on maintaining slope stability through strong ability of tensile properties and deformation ability.

关键词

Keywords

references

谢春华,关文彬,张东升,等. 长江上游暗针叶林生态系统主要树种的根系结构与土体稳定性研究[J]. 水土保持学报,2002,16(2):76-79.

Gray D H, Sotir R B. Biotechnical Soil Bioengineering Slope Stabilization:A Practical Guide for Erosion Control[M]. New York:Wiley, 1996.

Roering J J, Stock J D, Schmidt K M, et al. Shallow landsliding, root reinforcement, and the spatial distribution of trees in the Oregon Coast Range[J]. Canadian Geotechnical Journal, 2003,40(2):237-253.

Waldron L J, Dakessian S. Effect of grass, legume, and tree roots and soil shearing resistance[J]. Soil Science Society of America Journal, 1982,46(5):894-899.

Abe K, Iwamoto M. An evaluation of tree-root effete on slope stability by tree-root strength[J]. Joumal of Japanese Forestry Science, 1986,69(1):505-510.

Cammeraat E, van Beek R, Kooijman A. Vegetation succession and its consenquences for slope stability in SE Spain[J]. Plant, 2005,278(1),135-147.

吴征镒. 中国植物志[M]. 北京:科学出版社,1980.

刘秀萍,陈丽华,宋维峰,等.油松根系抗拉应力-应变全曲线试验研究[J].中国水土保持科学,2006,4(2):66-70.

李晓凤,陈丽华,王萍花. 华北落叶松根系抗拉力学特性[J].中国水土保持科学,2012,10(1):82-87.

Hales T C, Clara C H, Laurence L, et al. Assessing the accuracy of simple field based root strength measurements[J].Plant and Soil, 2013,372(1/2):553-565.

宋恒川,陈丽华.华北土石山区四种常见乔木根系的形态研究[J].干旱区资源与环境,2012,26(11):194-199.

于顺利,马克平,陈灵芝.中国北方蒙古栎林起源和发展的初步探讨[J].广西植物, 2000,5(2):131-137.

李贺鹏,岳春雷,赵广琦,等.中亚热带常绿阔叶林中主要灌木根系力学特性[J].西北林学院学报,2010,25(5):33-36.

王剑敏,沈烈英,赵广琦.中亚热带优势灌木根系对土壤抗剪切力的影响[J].南京林业大学学报:自然科学版,2011,35(2):47-50.

朱清科,陈丽华,张东升,等.贡嘎山森林生态系统根系固土力学机制研究[J].北京林业大学学报,2002,24(4):64-67.

吕春娟,陈丽华,周硕,等.不同乔木根系的抗拉力学特性[J].农业工程学报,2011,27(S1):329-335.

Cofie P, Koolen A J. Test speed and other factors affecting the measurements of tree root properties used in soil reinforcement models[J]. Soil Till Res.,2001,63(5):51-56.

Sun Hailong, Li Shaocai, Xiong Wenlan, et al. Influence of slope on root system anchorage of

Pinus yunnanensis

. Ecol. Eng., 2008,32(1):60-67.

尹恩慈.木材学[M]. 北京:中国林业出版社,1996.

Zhang Chaobo, Chen Lihua, Jiang Jing, et al. Effects of gauge length and strain rate on the tensile strength of tree roots[J].Trees, 2012,26(5):1577-1584.

Views

2010

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Instantaneous Anti-tension and Tensile Strength of Single Root of Four Plant Species in Two Growth Periods

Root Distribution Characteristics and Tensile Strength of Cy nodon Dactylon L.

Effect of Root Main Component Content on Its Soil-binding Capacity

Effects of Hypericum Perforatum Roots on Shear Strength of Slope Soil

Comparison of Tensile Resistance Properties of Main Roots and Lateral Roots Among Four Shrub Species in Northeast Qinghai-Tibet Plateau

Related Author

YAO Xi-jun

XING Hui-wen

ZHANG Xin

LIU Jing

NIU Guo-quan

YUAN Shu-juan

ZHANG Yu-huan

LUO Hai-bo

Related Institution

Institute of Water Resources of Pastoral Area, Ministry of Water Resources

Inner Mongolia Agricultural University

College of Resource and Environment Engineering, Guizhou University

School of Soil and Water Conservation, Beijing Forestry University

Shenzhen Tech and Ecology & Environment Co, Ltd

⁰