PDF Download

[1]Zhang Minrui,Zhu Shaodong,Li Pan,et al.Evaluation of Influencing Factors of Soil Shear Performance of Typical Vegetation in Dry-Hot Valley Area[J].Research of Soil and Water Conservation,2024,31(04):153-162.[doi:10.13869/j.cnki.rswc.2024.04.019]

Copy

Evaluation of Influencing Factors of Soil Shear Performance of Typical Vegetation in Dry-Hot Valley Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 31 Number of periods: 2024 04 Page number: 153-162 Column: Public date: 2024-06-30

Title:: Evaluation of Influencing Factors of Soil Shear Performance of Typical Vegetation in Dry-Hot Valley Area

Author(s):: Zhang Minrui, Zhu Shaodong, Li Pan, Duan Qingsong, Yang Yuanjun; (College of Water Conservancy, Yunnan Agricultural University, Kunming 650201, China)

Keywords:: Jinsha River dry-hot valley; root tensile; shear performance; grey correlation method

CLC:: S157; S714

DOI:: 10.13869/j.cnki.rswc.2024.04.019

Abstract:: [Objective]The aims of this study are to explore the influence of vegetation on the soil consolidation effect of slope, and to provide data support for preventing soil erosion and reducing soil erosion in the dry-hot valley of Jinsha River. [Method]Four typical vegetations(Acacia confusa, Quercus franchetii, Phyllantthus emblica, Pinus yunnanensis)in Yongren County of Yunnan Province were taken as the research objects. Indoor single root tensile test and direct shear test were carried out to study the difference of soil shear performance of different vegetation types and the influence of various factors on it. [Results](1)The average single root tensile resistance of the four plants decreased in the order:Quercus franchetii>Phyllantthus emblica>Pinus yunnanensis>Acacia confusa. The average tensile strength of single root decreased in the order:Phyllanthus emblica>Acacia confusa>Pinus yunnanensis>Quercus franchetii. The tensile resistance of a single root had an exponential function relationship with the root diameter, and the tensile strength of a single root had a significant negative correlation with the root diameter.(2)Under the four vertical pressures, the shear strength of the four vegetation root-soil composites was greater than that of the plain soil, and the shear strength index varied with the depth of the soil layer. The soil cohesion of the Pinus yunnanensis vegetation had the largest variation with the depth of the soil layer(51.47%), and the internal friction angle of the Quercus franchetii vegetation had the largest variation with the depth of the soil layer(37.96%).(3)The grey correlation method was used to comprehensively analyze the correlation between root tensile properties, soil physical and chemical properties and soil cohesion and internal friction angle. The correlation between cohesion and root tensile strength was the strongest, followed by root tensile resistance, and the water content was the weakest. The correlation between internal friction angle and soil bulk density was the strongest, followed by organic matter, and total potassium was the weakest. [Conclusion]The tensile properties of plant roots and the physical and chemical properties of soil can significantly affect the shear properties of soil, among which the tensile properties of roots have a greater impact on soil cohesion, and have no significant effect on soil internal friction angle.

References:: [1]张珉瑞,朱少东,李盼,等.干热河谷区4种典型植被土壤抗剪性能影响因素探究[J].江西农业大学学报,2023,45(5):1285-1296.
Zhang M R, Zhu S D, Li P, et al. Influencing factors of soil shear performance of four typical vegetations in dry-hot valley area[J]. Acta Agriculturae Universitatis Jiangxiensis, 2023,45(5):1285-1296.
[2]Capilleri P P, Motta E, Raciti E. Experimental study on native plant root tensile strength for slope stabilization[J]. Procedia Engineering, 2016,158:116-121.
[3]Xu W, Wang X, Zhang Y, et al. A comparison among root soil-conservation effects for nine herbs at the cold region highway in north-eastern China[J]. Eurasian Soil Science, 2014,47(12):1274-1282.
[4]李怡帆,张国涛,雷鸣宇,等.西南山区云南松根土复合体力学特性及其对浅层坡体稳定性的影响[J].水土保持通报,2022,42(6):88-96.
Li Y F, Zhang G T, Lei M Y, et al. Mechanical properties of Yunnan pine root-soil system and its influence on shallow slope stability in southwestern mountainous region of China[J]. Bulletin of Soil and Water Conservation, 2022,42(6):88-96.
[5]Sluiter J B, Ruiz R O, Scarlata C J, et al. Compositional analysis of lignocellulosic feedstocks:1. Review and description of methods[J]. Journal of Agricultural and Food Chemistry, 2010,58(16):9043-9053.
[6]杨路,杜峰,秦晶晶,等.黄土区3种优势灌木根土复合体的抗剪强度研究[J].水土保持研究,2022,29(1):295-300.
Yang L, Du F, Qin J J, et al. Research on shear strengths of root-soil complexes of three dominant shrubs in loess region[J]. Research of Soil and Water Conservation, 2022,29(1):295-300.
[7]张春涛,马建刚,丁明净,等.蔓竹单根抗拉及根-土复合体抗剪特性[J].四川农业大学学报,2022,40(6):883-892.
Zhang C T, Ma J G, Ding M J, et al. Tensile properties of single root and shear properties of root-soil complex of Bashania qiaojiaensis yi et J. Y. Shi[J]. Journal of Sichuan Agricultural University, 2022,40(6):883-892.
[8]何伟鹏,胡夏嵩,刘昌义,等.黄河源区不同禁牧年限对垂穗披碱草单根及其根-土复合体力学强度特征的影响[J].草业学报,2023,32(5):106-117.
He W P, Hu X S, Liu C Y, et al. Impact of the different duration years of grazing prohibition on the mechanical strength characteristics of Elymus nutans roots and its composite systems in the Yellow River source region[J]. Acta Prataculturae Sinica, 2023,32(5):106-117.
[9]Li J, Wang X, Jia H X, et al. Effect of herbaceous plant root density on slope stability in a shallow landslide-prone area[J]. Natural Hazards, 2022,112(3):2337-2360.
[10]谢祥荣,陈正发,朱贞彦,等.根土复合体力学效应及其模型构建研究进展与展望[J/OL].水土保持学报. https://kns.cnki.net/kcms2/detail/61.1362.TV.20230721.0845.004.html.
Xie X R, Chen Z F, Zhu Z Y, et al, Research progress and prospect of mechanical effects and modei construction of root-soil complex[J/OL]. Journal of Soil and Water Conservation. https://kns.cnki.net/kcms2/detail/61.1362.TV.20230721.0845.004.html.
[11]中华人民共和国住房和城乡建设部.GB/T 50123—2019土工试验方法标准[S].北京:中国计划出版社,2019.
Ministry of Housing and Urban-Rural Development of the People's Republic of China. GB/T 50123—2019 Standard for Geotechnical Testing Method[S]. Beijing:China Planning Press, 2019.
[12]张万辱,许本彤.森林土壤定位研究方法[M].北京:中国林业出版社,1989.
Zhang W R, Xu B T. Research Methods of Forest Soil Location[M]. Beijing:China Forestry Press, 1989.
[13]张晓明,王玉杰,夏一平,等.重庆缙云山典型植被原状土抗剪强度的灰色关联度分析与评价[J].水土保持研究,2007,14(2):145-147,151.
Zhang X M, Wang Y J, Xia Y P, et al. Grey relational analysis and evaluation on anti-shear strength of the undisturbed soil of typical vegetations in Jinyun Mountain in Chongqing City[J]. Research of Soil and Water Conservation, 2007,14(2):145-147,151.
[14]李宁,陈丽华,杨苑君.油松、华北落叶松根系抗拉特性的影响因素[J].北京林业大学学报,2015,37(12):77-84.
Li N, Chen L H, Yang Y J. Factors influencing root tensile properties of Pinus tabuliformis and Larix principis-rupprechtii[J]. Journal of Beijing Forestry University, 2015,37(12):77-84.
[15]杨苑君.华北典型乔木根系抗拉及土壤抗剪性能研究[D].北京:北京林业大学,2016.
Yang Y J. Study on the Root Tensile Properties and the Soil Shear Properties of Typical Tree Species in North China[D]. Beijing:Beijing Forestry University, 2016.
[16]李可,朱海丽,宋路,等.青藏高原两种典型植物根系抗拉特性与其微观结构的关系[J].水土保持研究,2018,25(2):240-249.
Li K, Zhu H L, Song L, et al. Relationship between tensile properties and microstructure of two typical plant roots in the Qinghai-Tibet Plateau[J]. Research of Soil and Water Conservation, 2018,25(2):240-249.
[17]田佳,刘耀辉.华北地区几种常用边坡绿化植物的根系力学特性研究[J].中国水土保持,2007(10):34-36.
Tian J, Liu Y H. Study on root mechanical characteristics of several commonly used slope greening plants in North China[J]. Soil and Water Conservation in China, 2007(10):34-36.
[18]陈文乐,杜鹃,方迎潮,等.泥石流频发区典型乔灌植物根系的固土效应[J].水土保持通报,2019,39(5):32-39.
Chen W L, Du J, Fang Y C, et al. Soil reinforcement effect of root systems of typical plants in areas with frequent debris flow[J]. Bulletin of Soil and Water Conservation, 2019,39(5):32-39.
[19]孙庆敏,葛永刚,陈攀,等.汶川典型植物根-土复合体抗剪强度影响因素评价[J].水土保持学报,2022,36(1):58-65.
Sun Q M, Ge Y G, Chen P, et al. Evaluation of factors affecting the shear strength of root-soil composite of typical plants in Wenchuan County[J]. Journal of Soil and Water Conservation, 2022,36(1):58-65.
[20]祁兆鑫,余冬梅,刘亚斌,等.寒旱环境盐生植物根-土复合体抗剪强度影响因素试验研究[J].工程地质学报,2017,25(6):1438-1448.
Qi Z X, Yu D M, Liu Y B, et al. Experimental research on factors affecting shear strength of halophyte root-soil composite systems in cold and arid environments[J]. Journal of Engineering Geology, 2017,25(6):1438-1448.
[21]Mahannopkul K, Jotisankasa A. Influence of root suction on tensile strength of Chrysopogon zizanioides roots and its implication on bioslope stabilization[J]. Journal of Mountain Science, 2019,16(2):275-284.
[22]余冬梅,祁兆鑫,刘亚斌,等.青海柴达木盆地盐湖区5种盐生植物根-土复合体抗剪强度影响因素及评价[J].水土保持研究,2019,26(4):157-165.
Yu D M, Qi Z X, Liu Y B, et al. Factors affecting shear strength and contribution evaluation of root-soil composite systems of five halophytes in the salt lake region of northwest Qaidam Basin, Qinghai Province[J]. Research of Soil and Water Conservation, 2019,26(4):157-165.
[23]薛海龙,唐彪,张竞元,等.尖萼金丝桃根系对边坡土体抗剪强度的影响[J].水土保持通报,2019,39(3):87-92.
Xue H L, Tang B, Zhang J Y, et al. Effects of Hypericum perforatum roots on shear strength of slope soil[J]. Bulletin of Soil and Water Conservation, 2019,39(3):87-92.
[24]Wang Y I, Wu W H. Plant sensing and signaling in response to K⁺-deficiency[J]. Molecular Plant, 2010,3(2):280-287.
[25]李想,王瑄,盛思远,等.坡面不同土地利用类型土壤抗剪强度影响因素分析[J].水土保持学报,2017,31(1):80-84,90.
Li X, Wang X, Sheng S Y, et al. Analysis of influence factors on soil shear strength in slope under different land use types[J]. Journal of Soil and Water Conservation, 2017,31(1):80-84,90.
[26]张健乐,史东梅,刘义,等.土壤容重和含水率对紫色土坡耕地耕层抗剪强度的影响[J].水土保持学报,2020,34(3):162-167,174.
Zhang J L, Shi D M, Liu Y, et al. Effects of soil bulk density and water content on shear strength of cultivated-layer in purple soil sloping farmland[J]. Journal of Soil and Water Conservation, 2020,34(3):162-167,174.
[27]何停,范弢,徐宗恒,等.滇东石漠化坡地浅层裂隙漏失土壤的抗剪强度及其影响因素[J].水土保持通报,2021,41(3):31-39,49.
He T, Fan T, Xu Z H, et al. Loss soil shear strength and its influencing factors in shallow fractures of rocky desertification slopes in eastern Yunnan Province[J]. Bulletin of Soil and Water Conservation, 2021,41(3):31-39,49.
[28]刘武江,赵燚柯,段青松,等.不同播种方式草本植物土壤团聚体特征及对根系固土力的影响[J].水土保持研究,2021,28(6):25-31,38.
Liu W J, Zhao Y K, Duan Q S, et al. Effcets of different sowing patterns of herbs on soil aggregates characteristics and consolidating soil ability of roots[J]. Research of Soil and Water Conservation, 2021,28(6):25-31,38.

Similar References:

Memo

Last Update: 2024-06-30