【摘要】 详细论述了影响路基稳定性的自然、工程和人为引起的几种因素，包括：大气降水、风沙、大环境植被条件、路基坡度、土壤状况、人畜危害；通过对这些因素的分析提出了实施生物防护工程的具体措施。（１）高速公路绿化工程与其两翼绿化工程的同步实施。（２）工程措施与植物措施有机结合。（３）增加绿地覆盖指数与路基的稳定性紧密相关。（４）科学确定适宜的植物种群。（５）合理匹配植物层次。（６）提高绿化的装饰艺术。（７）植物防护措施在重点路段部位的实施。更多还原

【Abstract】 Some facters, caused by nature,construction,and human activities, whiwh affect roadbad stabilities are illustrated including atmospheric precipitation,sand storm,environmental conditions of vegetative cover,slope of roadbad ,soil of roadbad,soil structure,etc.basing on analysis of mentioned factors concrete measures are propsed to put plant protection into effect.the measurs consists of seven items更多还原