Application of Soil Biological Engineering in Ecological Restoration of Liuli River in Beijing City
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    Abstract:

    In the suburb of Beijing City,a bare section of the river bank was selected at the Liuli River to investigate and monitor the positive effects of soil bioengineering techniques on river ecological restoration in local areas.The river bank is marked by diverse types of soil erosion including splash erosion,sheet erosion,gully erosion and seepage erosion.Several soil engineering measures such as stem cuttings,brush mattress,root burying and fascine were deployed as near-natural restoration of the river bank.The growth characteristics and bank stabilization effects of Salix matsudana were investigated respectively in 1,4,5 and 13 months after the deployment.The results indicate that Salix matsudana achieved a high survival rate,and the average height of the new shoot and the average root diameter reached 116.9 cm and 0.85 cm respectively.The growth of Salix matsudana varied considerably among the four engineering measures.Within one month after the deployment,brush mattress treatment showed the highest growth vigor,followed in order by the treatments of root burying,and then fascine.In the other three investigation times,Salix matsudana in the root-burying treatment showed the best growing condition and the stem-cutting treatment was the worst.The growth characteristics in terms of root diameter and new-shoot height exhibited exactly the same trend.The application of soil bioengineering techniques efficiently recovered the plants on the riverbank and increased largely the biodiversity at the same time.This paper also summarized the precautions for the riverbank management.

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王颖,高甲荣,娄会品,顾岚,钱斌天.土壤生物工程在北京市琉璃河生态恢复中的应用[J].水土保持通报英文版,2011,(2):108-111

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History
  • Received:November 04,2010
  • Revised:March 04,2010
  • Adopted:
  • Online: November 26,2014
  • Published: