土壤生物工程在北京山区公路绿化中的应用  

Application of Soil Biotechnology to Road Slope Revegetation of Beijing Mountainous Region

作　　者：娄会品[1] 高甲荣[1] 刘瑛[1] 吕晶[1] 王颖[1] 

机构地区：[1]北京林业大学教育部水土保持与荒漠化防治重点实验室,北京100083

出　　处：《中国水土保持》2010年第3期15-18,共4页Soil and Water Conservation in China

基　　金：国家自然科学基金项目(40771128);国际科技合作项目(2009DFA32490)

摘　　要：山区公路边坡绿化不仅可以保护边坡,防治水土流失,而且还可以改善公路施工过程中对环境造成的创伤,已经成为公路边坡治理的重要内容。以北京市怀柔区琉璃河岸坡为试验示范区,以旱柳(Salix matsudana)作为主要的绿化植物,采用扦插、埋根、灌丛垫、柳篱挡墙、梢捆等土壤生物工程措施,对沿河公路路基边坡进行治理,并对施工完成5个月后的生长状况、护坡效果等进行观测调查。结果表明:5种土壤生物工程中旱柳的成活率均在90%以上,在试验区具有很好的适应性;在不同的工程类型、水淹与否等条件下,旱柳的生长状况表现出明显的差异,各措施按旱柳生长状况由好到差排序依次为梢捆、灌丛垫、埋根、扦插、柳篱挡墙;水淹1个月的旱柳基径和株高较未水淹的平均值分别小13.2%和21.4%。Revegetation of roads slope in mountainous region has become an important content of treatment of road slopes.It can not only protect the slopes,prevent and control soil and water loss,but also restore the damage of environment in road construction.It takes the bank slopes of Liuli River in Huairou District of Beijing as a pilot area taking Salix matsudana as the main construction material,and adopts soil bio-engineering measures of live staking,rooted cutting,bush mattress,wattle fence and fascine for slope treatment of road foundation along the river.It observes and investigates the plant growth status and its slope stability effects after five months of project completion.The outcomes show that a)among the five soil bio-engineering measures,the survival rate of Salix matsudana is greater than 90% and shows good adaptability in the pilot area;b)under the conditions of different types of engineering works and submerged or not,the growth of Salix matsudana shows significant differences.The sequence of each measure from good to worse is as follows:fascine > brush mattress > root cutting > living cuttings > wattle fence;c)the mean basal diameter and mean height of Salix matsudana which is flooded for a month are 13.2% and 21.4% less than that of not flooded.

关 键 词：公路护坡 土壤生物工程 旱柳 边坡绿化 北京山区 

分 类 号：S731.8[农业科学—林学]