Study On Landscape Ecological Design Of River-type Wetland

Wetlands,known as the "kidney of the earth",play an irreplaceable role in protecting biodiversity and regulating local climate.As an important part of wetland,river-type wetland attracts many tourists with its unique charm and has important landscape and ecological value.However,in the process of economic development in China,unreasonable economic development mode has caused the destruction of river ecological environment,such as deterioration of river water,deterioration of environment and even river outflow.The contradiction between economic development and ecological environment protection needs to be solved urgently.Based on the current situation of river wetland ecological environment in China,this paper introduces the related concepts of river and river wetland,combs the research process of river wetland landscape ecological design at home and abroad,explores the ancient ecological concept and its modern value through literature review,induction and summary,and points out its significance to the construction of River Wetland landscape,and analyses the river wetland landscape.Based on the elements of land landscape and the theories of landscape ecology,river continuum theory,sequence discontinuity theory,River compound section flow theory,flood pulse theory and river four-dimensional model theory,the design methods of river wetland landscape ecological design are elaborated in detail from three levels of nature,humanity and man-made,including vertical,horizontal and vertical.The four dimensions of direction and time are the organization of natural landscape spatial structure of river wetland;the construction of artificial landscape such as roads,activity sites,garden sketches,hydrophilic platforms and management service buildings;and the integration of human landscape with the protection and utilization of material cultural heritage,inheritance and expression of intangible cultural heritage as the main content.Finally,a case study of Runhe National Wetland Park in Dengzhou,Henan Province is presented.