Experimental Research on Flow Velocity of Rillslopes in Rainfall

XIA Wei-sheng; ZHANG Hong; LIU Xian-zhao

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Experimental Research on Flow Velocity of Rillslopes in Rainfall

- Experimental Research on Flow Velocity of Rillslopes in Rainfall
- Bulletin of Soiland Water Conservation Vol. 21, Issue 6, Pages: 26-28(2002)
- 作者机构：
  
  1. 湖南师范大学资源与环境科学院,湖南,长沙,410081
  2. 杨凌职业技术学院水利系, 陕西, 杨凌,712100
  3. 烟台师范学院地理与旅游系,山东,烟台,264025
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2002
- 稿件说明：
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XIA Wei-sheng, ZHANG Hong, LIU Xian-zhao. Experimental Research on Flow Velocity of Rillslopes in Rainfall[J]. Bulletin of Soiland Water Conservation, 2002, 21(6): 26-28.
DOI：

XIA Wei-sheng, ZHANG Hong, LIU Xian-zhao. Experimental Research on Flow Velocity of Rillslopes in Rainfall[J]. Bulletin of Soiland Water Conservation, 2002, 21(6): 26-28. DOI：

摘要

在降雨强度为 50mm/h的条件下

在降雨10min后

在坡面初步形成细沟时

用电解质脉冲法对4种坡度的水流速度进行了测量。测量结果表明无论土壤表面是细漫流或细沟流

用这种方法均可进行测量。从理论上和拟合结果来看

这种方法测量水流速度是可行的。若进一步研究

有可能用于解释细沟侵蚀的机理。

Abstract

Four types flow velocity are measured using electroly tepulse method while rills are formed at slope

and when it rain for 10 minutes with intensity of 50mm/h. The results show that the method is feasible to measure the velocity of sheet flow

nomatter the rill is formed or not. The velocity of flow on soil surface can be measured and may be used to explain the mechanism of rill erosion.

关键词

Keywords

references

Abrahams A D,Parsons A J, Luk S H.Field measurement of the velocity of overland flow using dye tracing[J].Eearth surface Processes and landforms.1986,11:653-657.

Luk S H, Merz W.Use of the salt tracing technique to determine the velocity of over land flow[J].Soil technology,1992,5:289-301.

Foster G R,Huggins L F,Meyer L D.A laboratory study of rill hydraulics.I:velocity relationships[J].Soil Technology,1992,5:289-301.

Horton R E, Leach H R,Vliet V R.Laminar sheetflow[J].Transactions of the American Geophysical Union, 1934,15:393-404.

Gang Li,Abr ahams A D,Atkinson J F.Cor rection factors in the determination of mean velocity of over land flow[J]. Earth surface Processes and landforms,1996,21:509-515.

Guy B T,Dickinson W T,R P.The rules of rainfall in the sediment transport capacity of inter rill flow[J].Transactions of the ASAE,1987,30(5):1378-1387.

Govers G.Relationships between discharge,velocity,and flow area for rills eroding loose,non-layered materials[J].Earth Surface Processes Landforms,1992,17:515-528.

Abrahams A D,Li G,Pa rsons J.Rill hydraulics on a semiarid hill slope,so uthern Arizona[J].Earth Surface Processes and Landforms,1996,21:35-47.

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