坡面是地理过程发生发展的重要单元，生产建设项目等人为活动产生的大量人工土质边坡是土壤侵蚀的主要发生地和灾害的主要来源。研究表明，植物措施对边坡防护具有重要的作用，植物根系通过增加土体的抗剪强度提高了土坡的稳定性，而植物的地上部分将增加边坡的荷载，这些因素综合影响着不同类型植物对坡体稳定性提高效果。如何将数值模型运用于土质边坡稳定性研究是当今的热点问题，但现有土坡稳定性计算模型中未能耦合植物的固坡作用。为解决在土质边坡稳定性计算中，无法耦合植物作用这一科学问题，本项目将首先提取植物根系固土的效果参数与植物地上部分参数并将其量化，然后运用数值模拟的方法将其应用于土质边坡的安全系数计算中，建立耦合植物作用的人工土质边坡稳定性模型。继而可以利用该模型探索植物空间配置对坡体稳定性的影响，为边坡治理研究寻找新的思路和方案。

Slope is an enssential component of the geographical process.Due to construction projects, a large number of man-made slope have been the major source of geological disaster and soil erosion. Numerous studies indicated that with regard to slope stability, the most important plant traits are those belowground,as the morphologly and topology of soil to shearing during a landslide. Plant species play a significant role on the effect of root-soil composite shear strength while the aerial organs of plants increase partial load on slope, these factors variety reinforcing effect of different plants. Moreover, lots of on-going studies based on numerical simulation model have been one of the important research focus, but failed coupling slope stability of plants. In order to coupled the effect of plant into slope stability analysis, this project will extract characteristic parameter from the reinforcement of soil shear strength by plant root and quantify it, and applying it to soil slope safety calculation through numerical simulation method. The results can advance the knowledge on plants reasonable spatial allocation and slope stability.