FENG Guojian,ZHU Weiwei,DU Jun,et al.Study on the Tensile Performance of Cynodon dactylon Roots[J].Northern Horticulture,2016,40(05):80-82.[doi:10.11937/bfyy.201605023]
狗牙根根系抗拉性能试验
- Title:
- Study on the Tensile Performance of Cynodon dactylon Roots
- Keywords:
- Cynodon dactylon roots; tensile; fitting; power function
- 文献标志码:
- A
- 摘要:
- 以云南省典型护坡植物狗牙根为研究对象,使用万能试验机对其进行单根拉伸,研究了根系直径、最大抗拉力、最大抗拉强度相关关系。结果表明:狗牙根根系的拉力-位移曲线表现为直线型、上凸型、持续波动型等类型;狗牙根根系抗拉力、抗拉强度与根系直径的关系可分别应用幂函数、二次多项式及Logistic模型进行拟合,相关系数均高于0.9和0.7;狗牙根根系的抗拉力与抗拉强度随根系直径增加分别有增大和减小的趋势,意味着根系的抗拉力、抗拉强度与根系直径分别呈正相关以及负相关关系。
- Abstract:
- Taking Cynodon dactylon roots as the research objects,using a universal testing machine for single stretch to study the diameter relationship with the maximum tensile force and the maximum tensile strength.The results showed that the tensile force-displacement of Cynodon dactylon roots showed the type of linear,convex and continuous wave.The tensile force and the tensile strength relationship with the diameter could be fitting used by power function,quadratic polynomial and logistic model respectively,the correlation coefficient were higher than 0.9 and 0.7.The root of tensile force and the tensile strength increased and decreased respectively with the root diameter enlarging,through the fitting,the roots tensile force showed positive function correlated relation with the root diameter,the tensile strength showed negative function relation with the root diameter.
参考文献/References:
[1]张迪,戴方喜.狗牙根群落土壤-根系系统的结构及其抗冲刷与抗侵蚀性能的空间变化[J].水土保持通报,2015,35(1):34-36. [2]嵇晓雷,杨平.狗牙根根系形态对边坡稳定性的影响[J].福建农林大学学报(自然科学版),2013,42(5):531-535. [3]MARIE G,ALEXIA S,THIERRY F,et al.The influence of plant diversity on slope stability in a moist evergreen deciduous forest[J].Ecological Engineering,2010,36(3):265-275. [4]王萍花,陈丽华,冀晓东,等.华北地区4种常见乔木根系抗拉强度的力学综合模型[J].北京林业大学学报,2012,34(1):39-45. [5]MAEEO T.Root tensile strength relationships and their slope stability implications of three shrub species in the Northern Apennines[J].Geomorphology,2007,84(4):1268-283. [6]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. [7]赵丽兵,张宝贵.紫花首浩和马唐根的生物力学性能及相关因素的试验研究[J].农业工程学报,2007,23(9):7-12. [8]宋维峰,陈丽华,刘秀萍.林木根系固土的理论基础[J].水土保持通报,2008,28(6):180-186. [9]陆桂红,欧国强,杨顺,等.泥石流源区典型草本植物根系抗拉试验[J].山地学报,2014,32(6):725-731. [10]杨汉忠,刘春霞.云南省高速公路边坡植被恢复技术与展望[J].福建林业科技,2008,35(4):254-260.
相似文献/References:
[1]初 秀 娟,张 新 全,刘 伟,等.狗牙根新品种( 系) 在川西南的适应性研究[J].北方园艺,2009,33(06):0.[doi:10.11937/bfyy.200906066]
CHU Xiu - juan,ZHANG Xin - quan,LIU Wei,et al.Research on the Adaptability of the New Varieties of Bermuda Grass in South- western Sichuan[J].Northern Horticulture,2009,33(05):0.[doi:10.11937/bfyy.200906066]
[2]杨 丽 丽,赵 玉 靖,李 会 彬,等.四个狗牙根品种耐寒生理评价研究[J].北方园艺,2009,33(11):0.[doi:10.11937/bfyy.2009011030]
YANG Li -li,ZHAO Yu-jing,LI Hui -bin,et al.Studies on The Cold-tolerance Physiology Comparison of Four Bermudagrass Varieties[J].Northern Horticulture,2009,33(05):0.[doi:10.11937/bfyy.2009011030]
[3]杨贤达,李会彬,李志辉,等.不同建植形式对狗牙根成坪的影响[J].北方园艺,2011,35(08):0.[doi:10.11937/bfyy.201108044]
YANG Xian-daI,LI Hui-bin,LI Zhi-hui,et al.Effects of Different Establishment Methods of Bermudagrass on Turf Stands[J].Northern Horticulture,2011,35(05):0.[doi:10.11937/bfyy.201108044]
[4]易 杨 杰,张 新 全,高 杨,等.不同狗牙根品种对聚乙二醇胁迫反应的差异[J].北方园艺,2008,32(09):0.[doi:10.11937/bfyy.200809042]
YI Yang -jie,ZHANG Xin-quan,GAO Yang,et al.Differing Response of Different Cynodondactylon Varieties under Polyethylene Glycol Stress[J].Northern Horticulture,2008,32(05):0.[doi:10.11937/bfyy.200809042]
[5]王新,孙熙喏,孙鑫博,等.抗倒酯对遮荫下狗牙根生长和草坪质量的影响[J].北方园艺,2019,43(22):76.[doi:10.11937/bfyy.20190872]
WANG Xin,SUN Xinuo,SUN Xinbo,et al.Effects of Trinexapac-Ethyl on Growth and Turf Quality of Baoding Bermudagrass Under Shade[J].Northern Horticulture,2019,43(05):76.[doi:10.11937/bfyy.20190872]
备注/Memo
第一作者简介:冯国建(1979-),男,天津人,博士,副教授,现主要从事环境岩土等研究工作。E-mail:fengguojian2000@163.com.基金项目:云南省高校优势特色重点学科(生态学)建设资助项目;云南省教育厅科学研究一般资助项目(2014Y385);昆明学院校级一般资助项目(XJL14012)。