Study On Landscape Optimization Design Of Zhengzhou Urban River Corridor Based On "Ecological Priority"

River is one of the most representative natural forms of nature's strong resilience,which embodies the elasticity,adaptability and advantages of natural water systems,and urban builders always try to domesticate natural rivers in simple and rough ways that solidify barges and cut straight.After the Industrial Revolution,with the rapid growth of population and the improvement of human living standard,the demand for urban land for rapid urban development has soared,and the urban river corridor space has been compressed and intensified.This development model can improve the economic development level of the city in a short time.After entering the 21 st century,the primitive industrialization is coming to an end,but the water ecology of the city is exhausted,so the citizens are more and more eager to contact nature again and enjoy the unique charm of the river corridor space.Based on this19 th CPC National Congress also clearly proposed to respect nature,and symbiosis with it,Zhengzhou is also taking "river and lake pass,water clear,cross-strait beauty" as the goal of water ecological civilization construction,vigorously carry out water ecological civilization city construction river corridor ecological restoration,improve the living environment.Therefore,it is imperative to establish a benign development mechanism for urban river corridor ecological landscape restoration.This paper focuses on the strategy of landscape optimization of Zhengzhou urban river corridor from the perspective of "ecological priority ".Firstly,based on the concept of ecological priority,this paper uses literature collection,field investigation and other methods to study the landscape of urban river corridors in Zhengzhou.Under the guidance of landscape ecology,sponge city and sustainable development theory,this paper systematically describes the present situation of hard landscape,soft landscape and human landscape in Zhengzhou city river corridors.The ecological restoration of river corridor landscape based on the concept of ecological priority is the only way to restore river corridor ecology at the present stage.Finally,through the evolution from the whole to the local,from the middle to the micro,taking the Jinshui River as an example from the river corridor hard landscape,soft landscape,human landscape three specific restoration strategies,hoping that carrying the memory of thousands of years in Zhengzhou Jinshui River can give this opportunity to revive,but also hope to provide reference for other urban rivers in the context of rapid urban development.