江西农业学报2025，Vol.37Issue(2)：18-22,5.DOI:10.19386/j.cnki.jxnyxb.2025.02.004
基于亚高山草甸不同深度的根土复合体抗剪强度研究
Research on Shear Strength of Root and Soil Complexes with Different Depths in Subalpine Meadows
摘要
Abstract
It is of great significance to clarify the complex physical characteristics of subalpine meadows with different depths of root and soil for mechanized grassland grassing.The subalpine meadow in Gaoben Mountain Area of Xundian,Yunnan was taken as the research object,and the shear strength of the subalpine meadow at different depths was determined by conducting direct shear tests.The shear strength characteristics of the Moore-Cullen model were used for fitting analysis.The results show that with the increase of the depth of the sub-alpine meadow,its shear strength gradually decreases.The shear strength of the root-soil complex with a depth of 0～10 cm is the highest,and the shear strength of the root-soil complex with a depth of 20～30 cm is the smallest.The simulation effect of The Moor-Cullen model is relatively obvious.The internal friction angle φ is basically constant within a certain range,and the change of the c value of its cohesion force is relatively obvious,indicating that the impact of the internal friction angle on the shear strength is relatively small,and the impact of the cohesion force on it is more significant.The research results can provide a reference for the design of subalpine meadow vegetation drafting equipment.关键词
亚高山草甸/深度/根土复合体/抗剪强度Key words
Subalpine meadow/Depth/Root-soil complex/Shear strength分类
农业科技引用本文复制引用
陈立畅,张福发,陈乐言,杨才高,李鑫龙,陈平平..基于亚高山草甸不同深度的根土复合体抗剪强度研究[J].江西农业学报,2025,37(2):18-22,5.基金项目
云南省水利科技重大专项(2023BG204001). （2023BG204001）
