Research On Landscape Planning And Design Based On The Hydrological Process Of City Artificial Lake

China's cities are currently facing the contradiction between water shortage and waterlogging.Under the common drive of the situation of Industry policies continuing to drive urban renewal and constantly reconstructed of strategic of urban drought and flood control,Urban water space as a carrier of material space facing with the development opportunities of functional refinement,which also can meet the dual demand of promoting urban space quality and upgrading the cities's waterlogging and drought prevention capacity at the same time.Urban artificial lake is an important part of modern urban water space system,which also has strong construction adaptability and flexibility and complex functions,such as flood prevention,drought resistance,environment beautifying,residents' recreation and so on.As a pity,urban artificial lake construction faced with the the plight of lack of basic research theory,limitation of functional category and the outdated of construction model.How to maintain the running water is the main challenge of high-density urbans' artificial lakes.This subject takes urban artificial lakes as the research object,using ecological landscape design methodology to support the water retention of urban artificial lakes.This article mainly includes five parts:In the first part,this paper summed up the basic theories,such as landscape ecology,urban hydrology,ecological hydrology,which closely related to urban artificial lakes' water quality issues;summarized the historical wisdoms and contemporary experiences of urban artificial lake' constructions and water quality control methods thought cases.In the second part,this paper uses the methods of literature research,induction and deduction to analyze the water balance mechanism and the disturbance mechanism of urban artificial lakes,to clarify the basic principles of the calculation and regulation of urban artificial lakes' water balance,then to complete application transformation.In the third part,this paper uses the logic deductive method to analyze the relationship between the landscape and the urban artificial lakes' hydrological process and the feasibility and necessity of taking this relevance as function interface to control flow regulation.On the basis of this feasibility,this paper did a divergence analyze about the system structure and the system elements of the urban artificial lakes'hydrological process and the landscape system.At the same time,this paper also find the coupling relationship between urban artificial lakes' landscape system and its hydrological process is determined by the correlation analysis method,and the coupling model was established.besides,the goal of maintaining the flux of artificial lake can be given.Finally,the coupling model of urban artificial lakes' hydrological process and landscape system can be transform into specific urban artificial lake's hydrological landscape system.In the fourth part,this paper analyzes the basic principles of hydrological landscape system regulation of water,and use the principle of water balance to analyze the restraint mechanism of urban artificial lakes' water volume under the operation of the above system again.Based on the above research,this paper summarizes the landscape design strategy for urban artificial lake water regulation,presents a catchment-oriented landscape optimization design model,sums up the contents of landscape system design which containing landscape structure and elements,builds a landscape design method frame of how to retain urban artificial lakes' flux based on the hydrological process.In the fifth part,I take Mengze Lake Park as the object of study and apply the landscape design method and water balance calculation equation to test the theory and design methods.This topic integrates the material spatial characteristics of the landscape with the hydrological process of the urban artificial lakes at landscape function and design level,seeks a positive solution of the problem of city artificial lakes' flux retain.The results of this research can effectively improve and expand the basic theory of urban artificial lakes,playing a role in landscape design methodology deepening.This project also can provide some assistance to solve the practical problems of urban artificial lakes,which are important part of the city's green infrastructure.