水利水电科技进展2016，Vol.36Issue(5)：8-12,39,6.DOI:10.3880/j.issn.1006-7647.2016.05.002
随机产汇流理论
Random theory of runoff yield and flow concentration
摘要
Abstract
Rainfall with time and space distribution is regarded as muster of infinitely great“drop of rainfall” from the view of random theory. Infiltration, evapotranspiration and flow concentration for rainfall of a point located in the watershed can be handled by hydrodynamics. The collective expression of infinitely great“drop of rainfall” with space distribution, i. e. , formations of runoff yield and flow concentration of watershed can be handled by probability theory. The above-mentioned idea not only resolves the runoff yield of watershed affected by space variations of rainfall and underlying surface condition, but also reveals physical nature of watershed instantaneous unit hydrograph( IUH) , i. e. , proportionality and superposition of watershed flow concentration. Finally, a method for determining space distribution of flow concentration velocity is put forward.关键词
流域产汇流/随机理论/雨滴/蓄满产流/超渗产流/流域瞬时单位线/流域汇流速度Key words
runoff yield and flow concentration of watershed/random theory/drop of rainfall/runoff formation at natural storage/runoff formation in excess of infiltration/instantaneous unit hydrograph of watershed/watershed flow concentration velocity分类
天文与地球科学引用本文复制引用
芮孝芳..随机产汇流理论[J].水利水电科技进展,2016,36(5):8-12,39,6.基金项目
国家自然科学重点基金(41430855) （41430855）
