摘要
为探究鄂西山区小流域设计洪水与汇流面积的关系,结合山洪灾害调查评价项目,以鄂西宣恩县51个小流域为研究对象,采用暴雨途径的瞬时单位线法计算小流域设计洪水,再根据计算结果对小流域汇流面积与设计洪水进行相关分析。经分析,宣恩县小流域汇流面积与设计洪水成幂函数关系,回归方程相关指数达到0.99以上,显著性检验P值<0.01。此关系对同类地区小流域设计洪水成果选取具有参考意义。
To study the relationship between design flood and catchment area in small catchemnt of west Hubei mountain regions,and in combination with survey and assessment project of mountain flood hazards 51 small catchments in Xuan＇e country,Hubei province are se-lected as objects,the design floods in the small catchments are calculated by application of instantaneous unit hydrograph method for the rainstorm route. Then the correlation between the catchment area and the design flood in the small catchment is analyzed. Through analy-sis,the relationship between catchment area and design flood in small catchemnt of Xuan＇en county is of the power function one. The cor-relation index of regression equation is above 0. 99. P value of significance testing is smaller than 0.01. This relationship achieved is with reference to select design flood in the small catchment of the same region.
作者
黄志强
陈思翌
闫团进
季亚辉
HUANG Zhiqiang;CHEN Siyi;YAN Tuanjin;JI Yahui(Hubei Water Resources Research Institute,Wuhan 430070,China;Shaanxi Hanjiang-Weihe Water Diversion Engineering Construction Co.,Ltd.,Xi＇an 710100,China)
出处
《西北水电》
2018年第4期10-13,共4页
Northwest Hydropower
关键词
小流域
设计洪水
相关分析
small catchment
design flood
correlation analysis
