| 排土场土体裂缝区植被根系及抗剪强度分布特征 |
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| 引用本文： | 李叶鑫,,吕 刚,宁宝宽,陈四利,王道涵,魏忠平.排土场土体裂缝区植被根系及抗剪强度分布特征[J].水土保持研究,2022,29(4):108-114+120. |
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| 作者姓名： | 李叶鑫 吕 刚 宁宝宽 陈四利 王道涵 魏忠平 |
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| 作者单位： | (1.沈阳工业大学 建筑与土木工程学院, 沈阳 110870; 2.辽宁工程技术大学 环境科学与工程学院, 辽宁 阜新 123000; 3.辽宁省林业科学研究院, 沈阳 110032) |
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| 摘 要： | 为揭示排土场土体裂缝区植物根系和抗剪强度分布特征,采用根钻法、WinRHIZO根系分析系统和直剪仪研究了0—60 cm土层植物根系、黏聚力和内摩擦角随土层深度的变化规律。结果表明:3个样地根系特征参数不同,随土层深度增加而减小,主要分布在0—20 cm土层,根密度和根重密度为88.81～303.03个/103cm3,0.15～2.69 mg/cm3。根系以径级d≤0.1 mm和0.1 mm
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| 关 键 词： | 排土场 根系 抗剪强度 土体裂缝 植被恢复 |
Distribution Characteristics of Vegetation Root System and Shear Strength with Ground Fissure in a Dump |
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| LI Yexin,,L&#,Gang,NING Baokuan,CHEN Sili,WANG Daohan,WEI Zhongping.Distribution Characteristics of Vegetation Root System and Shear Strength with Ground Fissure in a Dump[J].Research of Soil and Water Conservation,2022,29(4):108-114+120. |
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| Authors: | LI Yexin L&# Gang NING Baokuan CHEN Sili WANG Daohan WEI Zhongping |
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| Institution: | (1.School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China; 2.College of Environmental Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, China; 3.Liaoning Academy of Forestry Science, Shenyang 110032, China) |
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| Abstract: | In order to reveal the distribution characteristics of plant roots and shear strength with ground fissure in a dump, the variation of root system, cohesion and internal friction angle of 0—60 cm soil layer were studied by using root drill method, WinRHIZO root analysis system and direct shear apparatus. The results showed that the roots of the three plots mainly distributed in 0—20 cm soil layer, which decreased with the increase of soil depth, and the root density and root weight density of the three plots were 88.81～303.03 roots/103 cm3 and 0.15～2.69 mg/cm3, respectively; the diameters of plant roots of the three plots were mainly d≤0.1 mm and 0.1 mm
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| Keywords: | dump root shear strength ground fissure vegetation restoration |
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