Effect of Rainfall Intensity on Sediment Yield and Infiltration on Stony Soils

WU Bing; ZHU Yuan-jun; SHAO Ming-an

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Effect of Rainfall Intensity on Sediment Yield and Infiltration on Stony Soils

更新时间：2024-11-07

- Effect of Rainfall Intensity on Sediment Yield and Infiltration on Stony Soils
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  1. 西北农林科技大学资源环境学院
  2. 西北农林科技大学水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室
  3. 中国科学院地理科学与资源研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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WU Bing, ZHU Yuan-jun, SHAO Ming-an. Effect of Rainfall Intensity on Sediment Yield and Infiltration on Stony Soils[J]. 2011, 25(6).
DOI：

WU Bing, ZHU Yuan-jun, SHAO Ming-an. Effect of Rainfall Intensity on Sediment Yield and Infiltration on Stony Soils[J]. 2011, 25(6). DOI：

摘要

通过室内模拟降雨研究降雨强度对含砾石土壤产沙及入渗的影响。结果表明:整个降雨过程中

60mm/h的降雨强度下

产沙率变化相对平稳

90mm/h和120mm/h的降雨强度下

土壤产沙率的变化均因为有细沟而产生波动

120mm/h的降雨强度下

细沟出现的时间较90mm/h的降雨强度提前了5～20min;降雨强度的增加导致土壤总产沙量也显著增加

当降雨强度从90mm/h增加到120mm/h时

总产沙量的增加量是降雨强度从60mm/h增加到90mm/h时总产沙量增加量的0.83～2.82倍;随着降雨强度的增加

土壤的入渗率有减小的趋势。Kostiakov模型和Horton模型均可以很好模拟3种降雨强度下含砾石土壤的入渗过程

而在60mm/h的降雨强度下

Horton模型优于Kostiakov模型

在90mm/h和120mm/h的降雨强度下

Kostiakov模型优于Horton模型。

Abstract

The sediment yield and infiltration are affected by rainfall intensity based on simulated rainfalls.The results showed that the sediment delivery rate changed smoothly under rainfall intensity of 60 mm/h and the sediment delivery rate fluctuated due to rill during rainfall

the appearance of rill need more time of 5~20 minutes under rainfall intensity of 90 mm/h than that under rainfall intensity of 120 mm/h

the total sediment yield was increased obviously with the addition of rainfall intensity

the increase...

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Related Institution

College of Water Sciences， Beijing Normal University

State Key Laboratory of Earth Surface Processes and Resource Ecology， Faculty of Geographical Science， Beijing Normal University

College of Forestry， Guizhou University

Party School of the Guizhou Provincial;Committee

Soil Erosion and Ecological Restoration Research Centre，Guizhou University

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