Study On Ecological Protection Technology Of Bank Slope Of Zhungmu River

Traditional river protection mainly considers flood discharge,levee and water and soil conservation,ignoring the impact on the ecological environment.With the enhancement of environmental protection demand and the continuous development of society,traditional protection forms can no longer meet the needs of ecological harmony river,and river protection is gradually developing towards ecological harmony.Therefore,it is necessary to study the protection technology under the concept of ecological harmony so as to achieve a harmonious ecological water conservancy environment and realize the harmonious coexistence between man and nature.This paper firstly summarizes the research progress and current situation of the ecological protection of river bank slope at home and abroad,and puts forward the existing problems in the ecological protection of river slope.Then the river slope and its instability factors are classified and summarized,and four reinforcement methods of river slope are summarized.This paper summarizes the ecological protection technology of river and lists its advantages,disadvantages and applicable conditions.Through the comprehensive comparison of applicability and economy,it is concluded that the protection technology combined with plant and engineering is more suitable for the current river bank protection.Then it analyzes the mechanical effect of plants in the protection of river slope,and summarizes the functions of plants in the ecological protection of river slope,including ecology,landscape and slope protection.In this paper,the bank slope of G206 National Highway-S17 Hefu high-speed section of Zhuangmu River is taken as the research object,and the necessary work before ecological protection is carried out in the research area: according to the requirements of environmental quality standard for surface water(GB3838-2002),technical code for monitoring surface water and sewage(HJ/T91-2002)and technical code for design of water quality sampling scheme(HJ495-2009),Zhuangmu River in the research area is taken as the research object The water quality of Zhuangmu River in the study area is monitored by using the single factor index method.The results show that the water quality of Zhuangmu River in the study area is class V water,and the main pollutants in the water are TP,COD and TN.refer to the requirements of the technical code for investigation of agricultural wild plants NY/T1669-2008 and the technical code for investigation of wild plant resources LY / T1820-2009,and adopt the standard sample method to the study area According to the results of vegetation survey and the flora of Anhui Province and Changfeng County,it is concluded that there are 27 families of arbors,accounting for 32.6%;19 families of shrubs,accounting for 21.3%;53 families of herbs,accounting for 46.1%.The proportion of trees,shrubs and herbs is about 1.5:1:2.2.According to the collection of meteorological information in the study area,hydrological flood peak flow,irrigation area surrounding soil N,P element to characteristics,combined with the ecological effect of terrestrial plants and aquatic plants on water pollutants removal efficiency of research conclusion,choose suitable protection in the study area are the best plant combination,and plant-engineering design with the combination of ecological protection.Finally,the quality of ecological protection is evaluated.The evaluation method adopts AHP analytic hierarchy process,constructs the hierarchical matrix by inviting relevant experts to carry out importance scale,and makes quantitative analysis of ecological protection quality by using MATLAB and EXCEL software,and finally obtains the comprehensive score of river slope ecological protection design N=8.507 in the study area,and the ecological protection effect is good.Taking Zhuangmu River as the research object,this paper designs a feasible ecological scheme of river slope,establishes an evaluation index system,enriches the study of river ecosystem,and has reference significance for the ecological construction of river in cities and towns.