中文摘要：

植物根系如同复合材料中的纤维，与土体紧密结合形成特殊的根-土复合体，从而提高土体强度和延性，增强边坡稳定性。综合国内外研究学者对植物护坡机理的分析，认为植物根系具有牵拉锚固作用和摩擦加筋作用。为了深入研究不同植物种、不同根型的根-土复合体的护坡贡献及其护坡机理，从微观力学角度，借鉴晶须增强复合材料的增强机理，提出根系具有负荷传递和削弱破坏作用。

英文摘要：

Root system is similar to fiber of composite material, which combine closely with soil to form special soil-root composite, consequently enhance soil strength, ductility and slope stability. Through the synthesis of vegetation protection mechanism, root system play role of traction anchoring and friction reinforcement. In order to intensive study the slope protection contribution and mechanism of different plants and different kinds of soil root composite, the load transmission and weaken destructive effects are put forward from the point view of micromechanics, which is reference for the whisker enhancement mechanism.