| As a major river flowing through the urban area of Tai ’an City in Shandong Province and an important branch of Dayun River system,which is an important tributary of the lower Yellow River basin,it is not only an important part of Tai ’an City’s urban environmental protection to carry out ecological management of the river course and its watershed environment and construct the river ecosystem of harmonious coexistence between man and nature.At the same time,it can provide theoretical basis and scientific and technological support for the implementation of the national strategy of ecological protection and high-quality development in Shandong Province and even the lower Yellow River.Therefore,this paper takes Tai ’an Shuxi River as the research object,analyzes the natural conditions,land use and water and soil loss of Shuxi River,applies the hierarchical analysis and fuzzy comprehensive evaluation method,and establishes the evaluation index system to comprehensively evaluate the current situation of Shuxi River,and identifies the ecological environment problems existing in Shuxi River governance.On this basis,the overall objective,design concept and overall planning layout of the waterfront space ecological restoration and landscape engineering design of the Comb River are put forward,and the typical design of the engineering measures system is carried out.The main conclusions are as follows:(1)Comprehensive evaluation of the status quo of Shuxi River: Twelve indexes(index layers),including landscape diversity,landscape evenness,color richness,soil erosion and wetland protection awareness,were selected from three aspects,including ecological stability,ecological security and landscape suitability(criterion layer).The method of combining hierarchical analysis and fuzzy comprehensive evaluation was adopted to comprehensively evaluate the status quo of Shuxi River,and the conclusion was drawn that the evaluation grade was "general".(2)Ecological and environmental issues: the ecological environment of the Shuxi River is fragile,with severe soil erosion;The problems of river sedimentation and water pollution are still prominent;Unreasonable design of riverway revetment;The tree species and landscape configuration structure of riverbank greening are single;Lack of strong ornamental value and characteristic landscape nodes.(3)The overall goal of the design is to propose a comprehensive prevention and control measures system that integrates water and soil conservation,landscape engineering,restoration,and leisure,with the aim of implementing the national strategy of ecological protection and high-quality development in the lower reaches of the Yellow River in Shandong Province,guided by the governance concept of "green water and green mountains are golden mountains and silver mountains",and aimed at establishing a harmonious coexistence between humans and nature The overall goal is to establish a virtuous cycle of river ecosystem.(4)Design principles and concepts: adhere to the integration of restoration ecology,soil and water conservation,and landscape ecology;Adhere to the design concept of coordination between water and soil conservation and landscape ecology design,integration of natural landscape and garden art,coordination of landscape design and urban planning,and combination of river traffic and landscape design.(5)Overall planning and layout: Propose the overall planning and layout of ecological restoration and landscape engineering for the waterfront space of the Shuxi River with "one axis,two belts,three zones,and multiple points".Namely:One Axis ": The ecological landscape experience axis of the Shuxi river channel."Two belts" : the soil and water conservation forest belt and waterfront leisure landscape belt on both sides of the Shuxi river.Three zones: ecological health and leisure zone,campus ecological and cultural exhibition zone,and ecological protection and wetland restoration zone.Multiple points ": Yuedong Park,forest stroll,ecological parking lot,bird watching pavilion,railing water viewing,and crescent plank road.(6)Layout and design of engineering measure system: typical design of water and soil conservation and landscape works such as ecological revetment,water quality improvement(including microbial purification works,aquatic plant configuration works),rubber dam,waterfront wooden trestle design,landscape sketch design,pavement design,tree disk masonry,landscape section,grass planting design,floating island,grass planting ditch,etc,Propose a comprehensive prevention and control measures system that integrates water conservation,landscape restoration,and leisure,suitable for the restoration characteristics of the Shuxi River. |