摘要
当今社会雨水资源的开发利用已经成为解决水资源短缺问题的重要途径之一。研究区域性雨水资源化的潜力可为开展雨水收集利用工作奠定理论基础。因此以河北建筑工程学院校园为研究区域,使用GIS技术测量校园4类汇水面面积并赋予属性,应用径流系数法,结合当地的降雨分布规律,预测了校园在丰水年(P=25%)、平水年(P=50%)、枯水年(P=75%)可收集的雨水量分别为77359.17,65914.42和57296.67 m^(3),大约相当于校园1年用水情况的11%,9.3%,8.1%;并对校园内景观水系调蓄能力进行了核算与评估。研究结果表明雨水资源化潜力可观,可以在提高雨水利用率的基础上展开雨水资源化的相关研究工作。
At present,the development and utilization of rainwater resources has become an important way to solve water shortage.Studying the potential of regional rainwater utilization can provide a theoretical basis for the rainwater collection and utilization.Taking the campus of Hebei University of Architecture as the research area,four types of catchment areas were measured by GIS technology and assigned.According to the local rainfall distribution,the collectable rainwater of the campus in rainy years(P=25%),normal years(P=50%),and dry years(P=75%)were predicted respectively to be 77359.17 m^(3),65914.42 m^(3),and 57296.67 m^(3) by the runoff coefficient method,which was approximately equivalent to 11%,9.3%,and 8.1%of the campus’s annual water consumption.In addition,the capacity of regulation and storage of the landscape water system was calculated and evaluated.The results show that the potential of rainwater utilization is considerable,and the relevant research can be carried out on the basis of improving the utilization of rainwater.
作者
唐中楠
杨国丽
樊书铭
王伊林
Tang Zhongnan;Yang Guoli;Fan Shuming;Wang Yilin(Hebei University of Architecture,Hebei Key Laboratory of Water Quality Engineering and Comprehensive Utilization of Water Resources,Zhangjiakou 075000,China)
出处
《市政技术》
2021年第7期164-167,171,共5页
Journal of Municipal Technology
关键词
雨水资源
GIS技术
径流系数法
分布规律
rainwater resources
GIS technology
runoff coefficient method
distribution law
