杭州地区雨水花园不同土壤配比与雨型对比试验研究  

Comparative Experimental Study on Different Soil Proportion and Rain Type of Rainwater Garden in Hangzhou

作　　者：仇少鹏 周维[1] 孙超[1] 王斌[1] QIU Shao-peng;ZHOU Wei;SUN Chao;WANG Bin(Zhejiang Institute of Hydraulics&Estuary,Hangzhou 310020,Zhejiang,China)

机构地区：[1]浙江省水利河口研究院,浙江杭州310020

出　　处：《浙江水利科技》2020年第4期6-9,共4页Zhejiang Hydrotechnics

基　　金：浙江省水利科技计划项目(RB1701)。

摘　　要：根据杭州地区的降雨和下垫面的研究,选取杭州地区种植土和园区土分别与细砂和粗砂混合配比,以及杭州下沙地区2 a一遇与5 a一遇重现期降雨,通过人工降雨方式进行雨水花园实验模拟。结果表明:在雨型相同的情况下,种植土的最大下渗流量大于园区土的最大下渗流量;在同种土壤情况下,5 a一遇降雨情况下的最大下渗流量大于2 a一遇降雨情况下的最大下渗流量;对2种土壤进行砂粒混合配比后,成分含有园区土的最大下渗流量大于成分含有种植土的最大下渗流量。According to the study of rainfall and underlying surface in Hangzhou area,planting soil and park soil were mixed with fine sand and coarse sand respectively,and rainfalls of two-year return period and five-year return period in Hangzhou Xiasha area were selected to simulate the rainfall garden experiment by artificial rainfall. The results show that: under the same rainfall pattern,the maximum infiltration flow of planting soil is greater than that of park soil;under the same soil condition,the maximum infiltration flow under the condition of five-year return rainfall is greater than that of two-year return rainfall;after mixing the two kinds of soil with sands,the maximum infiltration flow containing park soil is greater than that of containing planting soil.

关 键 词：雨水花园 重现期 下渗 土体配比 

分 类 号：S278[农业科学—农业水土工程]