| Wetlands have the functions of purifying environment,regulating climate,storing water and preventing drought,protecting animal and plant resources and maintaining biodiversity.With the rapid development of urbanization and human disturbance and destruction,wetlands are facing serious problems such as ecological environment destruction and ecological function degradation.In order to solve the dilemma of wetland ecosystem imbalance and ecological function degradation,the state and government attach great importance to wetland protection,take a series of important measures to strengthen wetland protection,promote the work of wetland ecological environment protection and restoration everywhere,and provide a good guarantee for wetland ecological protection and sustainable development.This paper chooses Zhengzhou Yellow River Wetland Nature Reserve as the main research object,takes wetland ecological protection and restoration as the starting point,guided by sustainable development theory and environmental carrying capacity theory,combs related concepts and research progress at home and abroad,summarizes and summarizes the laws and methods of excellent wetland ecological planning and design cases at home and abroad.By means of literature reading,image interpretation and field investigation,this paper summarizes the ecological and cultural resources,topographic and geomorphological characteristics,current problems,spatial forms,ecological characteristics and functional functions of Zhengzhou Yellow River Wetland Nature Reserve,and focuses on the ecological problems of the Yellow River Wetland Nature Reserve,such as excessive reclamation of the Yellow River Wetland,destruction of the ecological environment and fragmentation of the landscape.Severe,ecological function decline and so on,and its causes were analyzed.On the basis of previous research,analysis and summary,and on the premise of exploring how to restore the ecological environment of the Yellow River wetland,starting from the resources and environment of the Yellow River wetland,the natural ecological environment of the wetland is restored and the characteristics of different regional resources are excavated to form a natural ecological conservation in Zhengzhou marginal area on the principle of ecological priority protection,coordinated sustainable development and overall planning and zoning protection.Barrier and Characteristic Cultural Display,Leisure and Entertainment,and Charm Place of Popular Science Education.Therefore,the planning and design of Zhengzhou Yellow River Wetland Nature Reserve are studied in three spatial scales: macro,meso and micro.(1)Making overall protection plan at macro level.According to the ecological functions of wetlands,green space,water system,pits and animal habitats are connected separately.Through the construction of ecological conservation belt,water system connection,biological protection corridor layout and cultural landscape belt layout and other corridors,the ecological network pattern of "one zone,four zones and multiple nodes" is constructed,and cultural heritage zone,ecological experience zone and wetland are planned.In the ecological restoration area and bird habitat protection area,typical representative areas are selected for key project planning and design,and a complete ecological network and ecological protection barrier along the Yellow River wetland are formed through corridor connection.(2)Rehabilitation planning and design of key areas in each district at the meso-level.According to the resource characteristics,environmental status and geographical location of each district,the typical demonstration zones are selected as key projects for planning and design in different zones.The specific planning and design strategies of different zones are discussed from the aspects of ecology,culture and landscape,and the characteristic ecological and cultural scenic spots are designed to make them become wetland ecological protection and ecological experience.And the leading model area of cultural development.(3)At the micro level,wetland plant landscape,wetland revetment and infrastructure are optimized and upgraded to enhance the ecological and landscape functions of the Yellow River wetland,enhance biodiversity and stability,and form a continuous and organic ecological environment.This paper combines theoretical research with field investigation.Through the study on the planning and design of the protection and restoration of wetland ecosystem in Zhengzhou Yellow River Wetland Nature Reserve at medium and small scales such as city and area,a relatively complete ecological planning and design strategy of the Yellow River Wetland Nature Reserve is put forward,which enriches the research theory and provides a certain degree for future urban wetland planning and design.Thought and reference. |