修建于黄土地区的土木工程，可能产生大量裸露的边坡，这些边坡难以依靠自然界的力量恢复植被。由于黄土具有CaCO3含量高、垂直节理发育及遇水强度骤减等特性，使得边坡极易发生崩塌和滑坡等灾害，这些灾害给工农业生产及人民的生命安全带来了严重影响，边坡的治理工作越来越受到人们的重视。 本文通过对关中黄土的特性、边坡破坏类型及特点的分析，研究了生态护坡机理及对边坡稳定的影响，取得以下成果： （1）根据护坡植物选择原则和植物群落配置原则，考虑地质水文、气候环境等自然条件与人文因素，配置出适应于关中黄土台塬各区的植物群落。 （2）本文针对黄土边坡的特性，构建了5大因素层12个评价指标的边坡稳定性评价系统及评价标准。 （3）针对具体工程实例，利用本文所确定的边坡稳定性评价系统，结合YAHP软件求解各个指标的权重。评价出具体实际边坡处于不安全状态，需对边坡进行及时的处理。 （4）采用生态护坡手段美化和加固边坡，通过GeoStudio软件分析生态护坡前的边坡与生态护坡后的边坡在降雨前、降雨中、降雨后三种工况下的渗流与稳定状态，得出经处理过的边坡在各个工况下均满足实际与规范要求。 生态护坡能够防止水土流失，削弱雨水溅蚀；能够改善环境、恢复被破坏的生态环境、降低噪音、净化空气及调节小气候。生态护坡技术的推广与应用可以促进工程建设与生态建设的协调发展。

Many of the civil engineering works built in Loess Area may produce slopes that can not rely on nature to restore vegetation. Because the loess has high content of CaCO3, vertical joint development and encountered water strength decreases, the slope prone to collapse and landslide. These disasters had affected agricultural production and people's life safety, and more and more attention has been paid to the management of slope. The paper analyzed the characteristics of the Loess in Guanzhong, the type and characteristics of the slope failure. The paper is research on the ecological slope protection mechanism and its influence on slope stability. The following results were obtained: (1) According to the principles of slope selection and plant community allocation, while considering the geological climatic, environmental conditions and other natural conditions, configured plant communities suitable for Guanzhong loess tableland area. (2)Based on the characteristics of Loess slope, the slope stability evaluation system of five major factor layers and twelve evaluation indexes were constructed. (3)For specific engineering examples, the slope stability evaluation system determined by this paper was used to solve the weight of each index with YAHP software. Evaluation of the specific actual slope and the results show that it was in an unsafe state, so it was necessary to deal with the slope . (4)The slop who was used of ecological slope protection means,though using the GeoStudio software to analyze the seepage and steady state of the ecological slope before the rainfall, between the rainfall and after the rainfall. The results show that the treated slope meets the actual and standard requirements under various conditions. Ecological slope protection can prevent soil erosion, weaken splash erosion, improve environment, restore vegetation, reduce noise, clean air and regulate microclimate. The promotion and application of ecological slope protection technology can promote the coordinated development of engineering construction and ecological construction.