Influence of soil moisture content on pullout properties of Hippophae rhamnoides Linn. roots
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Influence of soil moisture content on pullout properties of Hippophae rhamnoides Linn. roots ZHANG Chao-bo* LIU Ya-ting LI Dong-rong JIANG Jing
https://orcid.org/0000-0001-9196-2341;
e-mail: [email protected]
https://orcid.org/0000-0002-3508-1221; e-mail: [email protected] https://orcid.org/0000-0002-9241-3819; e-mail: [email protected] https://orcid.org/0000-0002-3467-3663; e-mail: [email protected]
*Corresponding author College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China Citation: Zhang CB, Liu YT, Li DR, Jiang J (2020) Influence of soil moisture content on pullout properties of Hippophae rhamnoides Linn. roots. Journal of Mountain Science 17(11). https://doi.org/10.1007/s11629-020-6072-9
© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract: Plant root system plays an important role in preventing soil erosion and improving slope stability. However, its performance is significantly affected by soil moisture content, and the role of soil moisture in root reinforcement is not fully understood. In this study, the influence of soil moisture on root pullout properties was studied by experiments. Vertical in-situ pullout tests under four different levels of soil matric suction (12 kPa, 18 kPa, 24 kPa, 30 kPa) were carried out on roots of sea buckthorn plants (Hippophae rhamnoides Linn.) which were artificially cultivated for 7 months. Diameter and length of the root system of sea buckthorn were investigated. The results showed that a very significant correlation was observed between root diameter (D) and root length (L) (P
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