Effects of Two Different Initial Soil Water Contents on Muddy Water Infiltration

SUN Cun-xi; WU Fa-qi; YAN Bing-long

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Effects of Two Different Initial Soil Water Contents on Muddy Water Infiltration

- Effects of Two Different Initial Soil Water Contents on Muddy Water Infiltration
- Bulletin of Soiland Water Conservation Vol. 30, Issue 3, Pages: 32-35(2011)
- 作者机构：
  
  1. 西北农林科技大学资源环境学院,陕西杨凌,712100
  2. 连云港市水利规划设计院有限公司,江苏,连云港,222000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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SUN Cun-xi, WU Fa-qi, YAN Bing-long. Effects of Two Different Initial Soil Water Contents on Muddy Water Infiltration[J]. Bulletin of Soiland Water Conservation, 2011, 30(3): 32-35.
DOI：

SUN Cun-xi, WU Fa-qi, YAN Bing-long. Effects of Two Different Initial Soil Water Contents on Muddy Water Infiltration[J]. Bulletin of Soiland Water Conservation, 2011, 30(3): 32-35. DOI：

摘要

浑水入渗是黄土高原地区普遍存在的现象，不同土壤初始含水量对入渗结果有着显著影响。以清水入渗为对照，研究了不同含水量条件下浑水入渗实验特征以及减渗率等内容。分析结果表明，第1 min末入渗速率、稳定入渗速率和累积入渗量均随浑水浓度增加呈指数函数关系递减，均表现出随着浓度增加呈稳定趋势。清水的累积入渗量在相同时段内始终最大，随着泥沙浓度增加，累积入渗量减小。本研究结果对土壤侵蚀机理研究具有应用价值。

Abstract

Muddy water infiltration is a common phenomenon in the Loess Plateau.The difference between infiltration processes of muddy water at different initial soil water contents is significant.Taking clear water as the control

we investigated the infiltration characteristics and infiltration decline rates of muddy water at different initial soil water contents.The results showed that the initial(at the end of first minute) and final stable infiltration rates as well as the cumulative infiltration volumes decreased exponentially as the turbidity increased.Those relationships appeared less variable with an increase in turbidity.For the same time duration

the cumulative infiltration volumes were always the greatest with clear water

and increasingly smaller as suspended solid concentration increased.The results of this study may be helpful to study soil erosion mechanism.

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