Vegetationon slopes not only serves as landscape function, but also controls rain water erosion and slope stability.
边坡工程中的植被不仅能美化环境，还具有控制雨水冲蚀、稳定边坡的作用。
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The system is based on factors that are easily available even in countries with poor facilities, such as bedrock geology, slope gradient and vegetation type.
Slope bioengineering has significant protective effect on ecology environment, yet vegetation has complex effect on the stability of slope, it plays both positive and negative roles.