典型文献
Determination of runoff coefficient(C)in catchments based on analysis of precipitation and flow events
文献摘要：
Runoff coefficient(C)values are tabulated and enshrined in hydrological engineering.These values are considered to be constant although they may not correspond to reality.In the same catchment,they may vary according to intensity,temporal and spatial distribution of precipitation events,humidity condi-tions,soil and land use.This study aimed to analyze extreme events of precipitation and their corre-sponding flows to obtain experimental runoff coefficients(C)and compare them with the tabulated values.The study was conducted in five experimental catchments in the state of S?o Paulo,Brazil,with different land uses.The runoff coefficients(C)were obtained from the analysis of hydrograms and using a digital filter,which made it possible to separate the direct runoff from the total flow.We observed a different variation in runoff coefficient values between catchments compared to those obtained from the tables.The runoff coefficients had a high correlation with land use.In catchments with original vege-tation cover,such as Cerrado and forest,they varied little among the events analyzed,unlike the catchments where land use is diversified,with predominantly agricultural and urban occupation.
文献关键词：
中图分类号：
作者姓名：
Ronalton Evandro Machado;Tais Oliveira Cardoso;Matheus Henrique Mortene
作者机构：
Unicamp(University of Campinas)-College of Technology,Limeira,SP,Brazil
文献出处：
引用格式：
[1]Ronalton Evandro Machado;Tais Oliveira Cardoso;Matheus Henrique Mortene-.Determination of runoff coefficient(C)in catchments based on analysis of precipitation and flow events)[J].国际水土保持研究（英文）,2022(02):208-216
A类：
enshrined,hydrograms
B类：
Determination,runoff,catchments,analysis,precipitation,events,Runoff,values,tabulated,hydrological,engineering,These,considered,constant,although,they,may,not,correspond,reality,In,same,vary,according,intensity,temporal,spatial,distribution,humidity,condi,tions,soil,land,This,study,aimed,extreme,their,sponding,flows,experimental,coefficients,them,was,conducted,five,state,Paulo,Brazil,different,uses,were,obtained,from,using,digital,filter,which,made,possible,separate,direct,total,We,observed,variation,between,compared,those,tables,had,high,correlation,original,vege,cover,such,Cerrado,forest,varied,little,among,analyzed,unlike,where,diversified,predominantly,agricultural,urban,occupation
AB值：
0.532497
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