水土保持通报2011，Vol.31Issue(4)：185-189,5.
狗牙根根系分布特征及其抗拉强度试验研究
Root Distribution Characteristics and Tensile Strength of Cynodon Dactylon L.
摘要
Abstract
A preliminary study on the distribution and tensile strength of roots of Cynodon dactylon L.in soil was conducted.The results showed that the density and the weight of root decreased with the increasing soil depth（0—40 cm）,and the trend could be expressed by exponential function.The tension resistance of the root increased with the enlargement of diameter,and could be modelled by quadratic function.The average tensile strength of the root was 39.349 MPa,and was 17% of that of grade I steel,moreover,it decreased with the increase of the diameter,and submitted to the law of exponential function.Hence,Cynodon dactylon L.has a significant function in slop protection based on the root distribution characteristics and tensile strength features.关键词
狗牙根/根系/分布特征/抗拉强度Key words
Cynodon dactylon L./root system/distribution characteristics/tensile strength分类
农业科学引用本文复制引用
魏华炜,罗海波,张玉环..狗牙根根系分布特征及其抗拉强度试验研究[J].水土保持通报,2011,31(4):185-189,5.基金项目
贵州省自然科学基金“废弃磷矿山土地生态复垦机理及技术研究”[黔科合J字（2007）2152] （）
