植物护坡技术用于黄土干旱地区边坡工程的调查研究

Survey Research on Slope Protection by Vegetation for Slope Engineering in Loess Drought Area

以延安地区黄土边坡护坡植物为研究对象,采用统计、分析等方法,对护坡植物类型、生长特征及常用工程措施进行调查研究。结果表明:延安地区黄土边坡植物主要为适应该地区地质、气候和地形特点的种类,以耐寒耐旱及适生性强的植物为主;边坡植物的生长特征与坡度、湿度等边坡生境有直接关系,并存在一定的物种差异性。在此基础上,提出了延安地区黄土边坡各坡度条件下的适宜植物种群及配套工程措施,为延安地区黄土边坡植物防护设计提供参考。

In order to study the loess slope plant in Yan＇an area, species, growth characteristics and structural designs of loess slope plants were analyzed by statistics and analysis. The results showed that the drought and freezing tolerant plant types are main varieties of loess slope vegetation for adapting to the local condition of geology,climate and terrain; the growth characteristics of loess slope plants are related to plant growth environment,and the species differences are obvious. On this basis,the suitable slope protection plant species and the structural design of eco-engineering for loess slope protection in Yan＇an area are suggested,which provides the reference for the design of plant protection to loess cutting slope in Yan＇an area.