生态河道植物护坡工程技术研究现状与展望

Research Status and Prospects of Slope Protection Engineering Technology by Vegetation in Ecological River

文章分析了植物护坡工程技术的发展现状,探讨了植物护坡工程技术的未来发展前景,旨在为生态河道的建设和理论发展提供参考。水利工程对植物护坡工程在稳定性、耐冲性、植物搭配和后期管护等方面具有一定特殊要求。当前护坡植物的选择主要包括当地优势草种比选、力学试验比选、模型模拟比选和借鉴已有工程等方式。植物护坡作用机理研究主要集中在植物固土护坡的根系力学效应和植物水文效应两个方面;植物护坡工程的评价过程往往掺杂主观因素,尚未出现统一的评价方法和评价模型。将来河道植物护坡工程技术可在工程特性、植物优选、护坡土壤改良与修复、生态效益量化和可持续性评价等多方面进一步探究,在新技术和新材料方面亟需取得突破。

This paper analyzes the development status of plant slope protection engineering technology,and discusses the future development prospects of plant slope protection engineering technology,aiming to provide reference for the construction and theoretical development of ecological rivers.The objective was to provide reference for the construction and theoretical development of ecological river.The construction and operation of water conservancy projects are significantly affected by river hydrological conditions and hydrodynamic factors,which has certain special requirements for slope protection engineering technology by vegetation in stability,impact resistance,plant collocation,later management and maintenance.At present,the selection of slope protection plants mainly includes comparison of local dominant grass species,comparison of mechanical test,comparison of model simulation and reference of existing projects.Studies on the mechanism of plant slope protection mainly focus on root mechanical effect and plant hydrological effect of plant soil fixation slope protection.The evaluation process of plant slope protection engineering is often mixed with subjective factors,and there is no unified evaluation method and evaluation model.In the future,the engineering technology of river plant slope protection can be further explored and studied in many aspects,such as engineering characteristics,plant optimization,soil improvement and restoration for slope protection,ecological benefit quantification,and the sustainability of later engineering period.It is urgent to make further breakthroughs in engineering technology and materials.