Study Of Peri-urban Mountain Rainwater Harvesting And Utilization Mode

The shortage of water resources will be become a global problem for human being in 21century. China is one of the countries which water resources is much short, so water resources is very important to China.With the development of urbanization and the improvement of the people's living standard, the contradiction against water supply and water demand is becoming more and more serious. On the one hand, with the centralization of the people and the economic activities, extension of the urban buildings and increase of the area of impervious stratum, the flood caused by urban storm flow cannot be neglected. On the other hand , new water supply source is urgently demanded for the scarcity of urban fresh water. As a kind of slightly polluted water source, rainwater has less contaminations and it can be used as domestic water and industrial water by simply treatment. In recent years, available water Resource capacity reduces year and year , but still the storm water in large a mount have not been effectively controlled and reasonably used .The development of urbanization increased the storm flood peak, burdened the flood protection pressure. In order to alleviate water resources shortage and to reduce flooding, and to give more attention on the rain water use has great and practical meaning.Based on consulting plenty of China and foreign literature ,the paper discussed and studied the mode of the rainwater utilization in mountainous area around of the cities . As an example , the paper analysis and accounted the mode of mountainous area Jinan city . The mostly study content and pilot study results as follows:(1) The paper analysed and studied the rainwater serial of Jinan city ,gained amount of average rainfall of Jinan city is 646. 552mm . Rainfall has large change in di fferent year and season ;Flood season is among 6-9 months , it is average rainfall is 500.4mm which...