Study On Landscape Reconstruction Design Of Flood Drainage Ditch In Lanzhou City

The flood drainage ditch in Lanzhou City is a "fish skeleton" river channel structure formed by connecting the Yellow River with the city.It is an important safe flood discharge channel connecting the Yellow River and the city,and is an important part of the construction of Lanzhou City.With the development of Lanzhou city,flood drainage ditch caused environmental mess due to many factors,such as human factors.In addition,the rigid drainage ditch leads to the difficulty of living,and the construction of green space is less.According to the important task of creating ecological city in Lanzhou City,the landscape reconstruction of flood drainage ditch becomes more important.This paper analyzes the flood drainage ditch in Lanzhou City by using the method of field investigation,sums up its common problems,and applies its own major to combine with.Botany,landscape,ecology and other related professional knowledge,combined with the relevant laws and regulations of the state,government,targeted landscape reconstruction design.The flood discharge capacity is combined with the landscape space,the flood season and the dry season complement each other,and according to the population flow in the area,the "pseudo-natural" method is adopted to transform the circulation system of flood ditch protection and land use on both banks to increase biodiversity,and to increase the landscape facilities.Create space for civic activities.The urban banded landscape space was transformed into a green corridor with the Yellow River customs line as the center and the north and south mountains connected to each other in a "fish skeleton" style,thus creating a green urban landscape with a hierarchy and a scale.The drainage ditch becomes an important part of the urban strategy of neutralization and health.