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Effects of Root Architecture Characteristics on Soil Reinforcement in Undisturbed Soil


Affiliations
1 China Academy of Transportation Sciences, Beijing 100029, China
2 Jinyun Forest Ecosystem Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China
 

The effects of plant ischolar_mains on the increase in soil shear strength involve a complex interaction of mechanical and hydrological processes operating over a scale of very diverse ischolar_main architecture. Understanding the effects of mechanical mechanisms on soil shear strength is challenged by this inherent complexity. A high level of inaccuracy in field measurements of soil reinforcement makes field measurements much more challenging than that of indoor observations. This paper presents a simple experimental study where the shear strength of undisturbed soil is measured at different soil depths and at different distances from the main stems of 7 tree species, a bamboo, a herbaceous perennial, perennial grass and a fern by measuring their ischolar_main area ratio, diameter class, and tensile strength. The result confirms that ischolar_main distribution varies widely within ischolar_main diameter classes and ischolar_main area ratio between species and soil layers. Root architecture characteristics were the dominant factors influencing shear strength in the 0.2–0.4 m soil layer. In the process of vegetation restoration, O. compositus and H. fulva were used as colonizing vegetation. Later, S. lucida and L. kwangtungensis were recommended to stabilize the shallow soil in the Three Gorges reservoir region.

Keywords

Direct Shear Test, Plant Roots, Soil Shear Strength, Theory Model.
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  • Effects of Root Architecture Characteristics on Soil Reinforcement in Undisturbed Soil

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Authors

Yunpeng Li
China Academy of Transportation Sciences, Beijing 100029, China
Yunqi Wang
Jinyun Forest Ecosystem Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China
Yujie Wang
Jinyun Forest Ecosystem Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China
Shuangshuang Song
Jinyun Forest Ecosystem Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China

Abstract


The effects of plant ischolar_mains on the increase in soil shear strength involve a complex interaction of mechanical and hydrological processes operating over a scale of very diverse ischolar_main architecture. Understanding the effects of mechanical mechanisms on soil shear strength is challenged by this inherent complexity. A high level of inaccuracy in field measurements of soil reinforcement makes field measurements much more challenging than that of indoor observations. This paper presents a simple experimental study where the shear strength of undisturbed soil is measured at different soil depths and at different distances from the main stems of 7 tree species, a bamboo, a herbaceous perennial, perennial grass and a fern by measuring their ischolar_main area ratio, diameter class, and tensile strength. The result confirms that ischolar_main distribution varies widely within ischolar_main diameter classes and ischolar_main area ratio between species and soil layers. Root architecture characteristics were the dominant factors influencing shear strength in the 0.2–0.4 m soil layer. In the process of vegetation restoration, O. compositus and H. fulva were used as colonizing vegetation. Later, S. lucida and L. kwangtungensis were recommended to stabilize the shallow soil in the Three Gorges reservoir region.

Keywords


Direct Shear Test, Plant Roots, Soil Shear Strength, Theory Model.

References





DOI: https://doi.org/10.18520/cs%2Fv113%2Fi10%2F1993-2003