The invention relates to the technical field of
urban construction, in particular to a road-dependent rainwater purification and storage ecological utilization
system in northern cities, comprising aroad central drainage green
plant unit, a roadside drainage unit, a roadside surface green
plant purification unit, an underground seepage storage unit and rainwater
wetland gardens, wherein due to the road central drainage green
plant unit, the
surface water permeable area of the pavement is increased; the
drainage ditch can effectively reduce the garbage blocking the pavement drainage outlet, accelerate the drainage velocity, and prevent the
snow water containing
snow melting agent from flowing into the
green belt in winter; due to the sidewalk drain
ditch, excessive rainwater on the pavement is introduced into the roadside surface green plant purification unit to increase the infiltration area and time of the rainwater; the underground seepage storage unit is set up to store rainwater for later use; due to the rainwater
wetland gardens, the rainwater infiltration area and rainwater
retention time can be enlarged in rainy season; and the rainwater
wetland gardens and the roadside surface green plant purification unit are connected in ditches, thus greatly reducing the amount and area of road water.