Urban Rainwater Collection And Use Of The Residential Area

With the development of economy, increase of population and the people materialculture living standard enhancement, the water use per capita increased the demand forwater is increasing; Urban impervious area increasing, loose permeable surface by thebuildings, concrete, asphalt and other waterproof materials are replaced, city streets,residential and large building to the city of osmotic water area up to90%, city watercontaminated with high rates of more than90%, water shortage and water environmentpollution is serious with each passing day, City rainwater resources has been neglectedfor a long time, has not been used, but strengthen the water pollution degree, increasedwater loss, reducing the groundwater recharge.The city changes a course accelerate, the shortage of water resources, deteriorationof ecological environment problems, rainwater in city as water resources utilization inthe United States, Europe, Japan and other developed countries have developed rapidly,forming a perfect system. Rainwater utilization to conservation and recharge ofgroundwater City, reduce rainwater runoff. The city of water, green can regulate climate,curb urban heat island effect, improves the city ecological environment. Clean waterhelps to protect the surface of circulating water health, reduce acid rain phenomenonformation, reduce the pollution of water resources. Keep the water clean in favor ofrainwater collection and reuse; Helps to protect our water resources, is the embodimentof the benign loop of zoology.At present, most of the domestic city uses water pouring tree flowers with green, redroad, car washing, sauna bath, serious waste of water resources. Increase of cityrainwater recycling facilities, strengthening the management of water resources, controlpollution of water resource, to the city of shortage of water resources, water pollution,ecological deterioration of the situation, rainwater in city as a supplementary watersource to exploit, can alleviate the crisis of water resources. Residential space is an important part of city green space, with a green area,environment benefit is good wait for a characteristic, rainwater harvesting and utilizationhas provided good conditions. And a kind of water conservation, and beautify theenvironment of multiple roles. Rainwater utilization has become the solution of citywater pollution, city, city of flood groundwater decline and loss of habitat environmentproblem. The sustainable utilization of city green space for sustainable development hasa very important role. Therefore, urban storm water resources development, efficient useof reasonable, effective protection and integrated governance is the key point of theresearch in this article.