Does soil surface roughness increase or decrease water and particle transfers

  title={Does soil surface roughness increase or decrease water and particle transfers},
  author={Fr{\'e}d{\'e}ric Darboux and Chi-Hua Huang},
  journal={Soil Science Society of America Journal},
Most of prior research showed increasing soil roughness delayed runoff and reduced total runoff and sediment yields but failed to differentiate roughness effects on water runoff and on sediment production. This study was conducted to assess separately the effects of soil surface depressions on runoff initiation and water and particle fluxes. A 5-m long soil box, filled with a silt loam, was split into 0.6-m wide paired smooth vs. rough plots with manually formed depressions, and subjected to a… 

Figures and Tables from this paper

Characterization of Soil Surface Roughness Effects on Runoff and Soil Erosion Rates under Simulated Rainfall

This study aims at identifying the influence of soil surface roughness from small to large aggregates (random roughness) on runoff and soil loss and to investigate the interaction with soil surface

Runoff, erosion and sediment particle size from smooth and rough soil surfaces under steady rainfall-runoff conditions

The responses of runoff and erosion to soil surface roughness (SSR) have been extensively studied in the past decades; however, most of these studies were conducted at the early stage of rainfall,

Surface roughness effects on runoff and soil erosion rates under simulated rainfall

Soil surface roughness is identified as one of the controlling factors governing runoff and soil loss. Yet, most studies pay little attention to soil surface roughness. In this study, we analyzed the

Effect of microrelief on water erosion and their changes during rainfall

Soil surface roughness contains two elementary forms, depressions and mounds, which affect water flow on the surface differently. While depressions serve as temporary water storage, mounds divert

Runoff from soils under different management and simulated rainfall regimes in southern Brazil

Abstract Surface runoff and drainage were evaluated for southern Brazilian soils subjected to different rainfall intensities and management practices. Soils received up to four applications of

Changed surface roughness by wind erosion accelerates water erosion

PurposeWind and water erosion are two dominant types of erosion that lead to losses of soil and water; understanding their interactions is important for estimating soil quality and environmental

Sediment transport in runoff on rugous soil surface submitted to simulated rainfall

Soil management influences water erosion and sediment size in runoff. With the objective of quantifying sediments in runoff and their relation to runoff velocity (Rv), random roughness (RR), and Ir



Sediment regimes under different slope and surface hydrologic conditions

During rainfall events, many physical processes occur simultaneously. Conceptual frameworks for infiltration, runoff, surface sealing, sediment detachment, transport, and deposition processes have

Vertical hydraulic gradient and run-on water and sediment effects on erosion processes and sediment regimes.

During rainfall events, runoff water carries sediment downslope. It has been hypothesized that the detachment potential of the runoff water would decrease as the sediment content is increased until a

Soil Roughness Changes from Rainfall

ABSTRACT CHANGES in soil surface roughness were measured for three tillage systems following the application of a series of simulated rainstorms. Tillage systems were chisel, chisel + disking, and

Seepage and Soil Erosion for a Clay Loam Soil

Seepage on a hillslope produces an area susceptible to surface erosion, especially near the bottom of the slope. A laboratory study was conducted to quantify the effects of seepage on soil erosion

Tilled Soil Subsidence During Repeated Wetting

ABSTRACT A total of 15.2 cm of water was applied without raindrop impact energy to six replicates of four freshly tilled soils to determine its effect on subsidence, random roughness, bulk density,

Variability of Runoff and Soil Loss from Fallow Experimental Plots

The amount of unexplained variation in runoff and soil loss studies often limits the interpretation of data. In this study, variability in runoff and soil loss from 40 essentially uniform

Sediment transport capacity and erosion processes: model concepts and reality

Sediment transport capacity, Tc, defined as the maximum amount of sediment that a flow can carry, is the basic concept in determining detachment and deposition processes in current process-based