Overall Planning Strategies For Ecological Restoration Of Water System In Weinan Luyang Lake Wetland

In recent years,the rapid development of the city,the wetland water system space has been squeezed,the ecological degradation is obvious.In order to solve the increasingly prominent contradiction between people and water,the Guanzhong region carried out Guanzhong water system governance under the concept of flexible water management.The Luyang Lake wetland is an important node project for Guanzhong water system planning,and the restoration is of great significance.This article takes the Luyang Lake Wetland as the research object,and expounds the overall process of wetland ecosystem restoration.First of all,analyze and evaluate the ecological status of the Luyang Lake.Taking water as the core and analyzing the water,water system,water quality,water ecology and water landscape,we conclude that the water ecology of the Luyang Lake wetland is facing shortage of water resources,poor internal and external connection of the water system,high water salinity,and degradation of water ecology.,water landscape broken and other issues.It is proved that the repair of the wetland water system of the Weinan Luyang Lake is necessary and urgent and feasible and reasonable.Secondly,the idea and mode of ecological restoration of wetland water systems were determined.With the help of typical cases at home and abroad,combined with the actual conditions of the Luyang Lake Wetland in Weinan Province,and according to the functional requirements of comprehensive wetlands,a functional layout combining protection and restoration with development and utilization was established.The ecological characteristics and design points of the overall spatial pattern of "layering,grading,upper,lower reaches,point axis" and other wetlands were analyzed,and the "point-line-and-face" hybrid model of combining various models was established.The layout of the water system is based on different partition characteristics using the "centralized,decentralized,strip,mesh" combination of water system layout.Using artificial and natural restoration methods,the key technologies for wetland restoration are described in terms of water balance calculation,hydrology connectivity engineering,water purification technology,salinity management,and animal and plant conservation for wetland issues.Finally,a specific guiding strategy for ecological restoration of wetland rivers is proposed.The restoration of the water of Luyang Lake from the aspects of ecological replenishment,water network restoration and water purification,and restoration of the wetland ecosystem on this basis.Scientifically plan water sources,partition storage,realize sustainable ecological water supply,improve water system corridors,construct and improve water network systems,gradually restore existing water surfaces,effectively control pollution sources,classify and purify water quality of wetlands,accelerate the progress of wetland conservation and restoration,and optimize wetland management.System to maximize the ecological benefits of wetlands.