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土壤生物工程在北京山区公路绿化中的应用
Application experiment of Soil Bioengineering on Road Slope Revegetation in Beijing Suburb
【Author】 LOU Huipin,GAO Jiarong,LIU Ying,LV Jing,Wang Ying (Beijing Forestry University Key lab of Soil and Water Conservation and Desertification Combating,Ministry of Education,Beijing 100083)
【机构】 北京林业大学教育部水土保持和荒漠化防治重点实验室;
【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。本文介绍了以北京市怀柔区琉璃河为实验河段,建立土壤生物工程技术对公路路基进行边坡治理的示范区,以旱柳(Salix matsudana)作为主要的施工材料,采用扦插、埋根、灌丛垫、柳篱挡墙、梢捆等土壤生物工程措施,并对施工完成五个月后的生长状况、护坡效果等进行观测调查。结果表明:五种土壤生物工程旱柳的成活率在90%以上,旱柳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,其生长状况由好到差依次为梢捆>灌丛垫>埋根>扦插>柳篱挡墙;水淹一个月较未水淹旱柳的基径和株高的平均值的分别小14.1%和21.4%。此外总结了土壤生物工程在山区公路护坡中应注意的问题和后期管理措施,以期为山区河流沿岸的公路护坡措施的制定提供科学的依据。
【Abstract】 As an important part of slope revegetation,creek road slope revegetation not only can protect the slope,but also can restore the scar in the road constructions.In the paper,soil bioengineering was used to rehabilitant the road along Liuli River in Huairou District of Beijing. Salix matsudana was selected as the main materials used for the project.Soil bioengineering measures as live staking,rooted cutting,brush mattress,wattle fence and fascines were used to protect the road slope.The plant performance and its slope stability effects were investigated after 5 months.The results show that:the survival rate of Salix matsudana was above 90%under different soil bioengineering techniques.It means that Salix matsudana was suited for the local environment.For such reasons like measures that took and floorings,growth status of plants showed significant differences:fascines>brush mattress>root cutting>living cuttings>wattle fence;The mean basal diameter and mean height of plants which in the flooded area of the slope for a month was 14.1%and 21.4%smaller than the plants that in the not flooded area of the slope. According to the results,the paper summed up some attentions during the construction and management.The results will give some theory basement to the road slope revegetation in the mountains.
【Key words】 road slope; soil bio-engineering; Salix matsudana; Beijing Mountain; Slope revegetation;
- 【会议录名称】 全国公路生态绿化理论与技术研讨会论文集
- 【会议名称】全国公路生态绿化理论与技术研讨会
- 【会议时间】2009-10-01
- 【会议地点】中国北京
- 【分类号】U418.9
- 【主办单位】中国水土保持学会工程绿化专业委员会、交通部公路科学研究院、北京林业大学