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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

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Record number 533985
Title Effect of soil surface roughness on infiltration water, ponding and runoff on tilled soils under rainfall simulation experiments
Author(s) Zhao, Longshan; Hou, Rui; Wu, Faqi; Keesstra, Saskia
Source Soil & Tillage Research 179 (2018). - ISSN 0167-1987 - p. 47 - 53.
DOI https://doi.org/10.1016/j.still.2018.01.009
Department(s) Soil Physics and Land Management
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Depression storage - Soil infiltration - Surface runoff - Tillage - Water erosion
Abstract Agriculture has a large effect on the properties of the soil and with that on soil hydrology. The partitioning of rainfall into infiltration and runoff is relevant to understand runoff generation, infiltration and soil erosion. Tillage manages soil surface properties and generates soil surface roughness (SSR) that affects the partitioning of the rainfall. The objective of this study was to quantify the amount of rainwater that infiltrates, is temporarily stored in surface depressions and flows out of the surfaces during rainfall events. A set of tillage-induced rough surfaces with slope steepness of 10° and 15° was used under simulated rainfall, and a smooth surface served as a control. Rainfall intensities were 60 and 120 mm h−1, and two soil erosion periods, overland flow erosion period (OFEP) and rill flow erosion period (RFEP), were monitored for each rainfall intensity. The results showed that for OFEP, infiltration water was 58% and 76% of the total rainwater on the rough surfaces and was approximately 1.5 and 2 times greater than that on the smooth surfaces for the different rainfall intensities. The surface runoff was consistently small for the OFEP but significantly increased for the RFEP. For example, for the RFEP, the amount of surface runoff was up to 78.66% of the total rainwater on the rough surfaces under rainfall of 120 mm h−1 in intensity. The amount of rainwater stored in surface depressions was significantly less than infiltration water and surface runoff for all conditions. The mean transformation ratio of rainwater into surface depression storage, infiltration water and surface runoff in the OFEP and RFEP was 0.07:0.49:0.44 for the rough surfaces and 0.01:0.29:0.70 for the smooth surfaces. For the tilled surfaces, more than 50% of rainwater was be harvested through tillage technique during a rainfall event, whereas for the smooth surfaces, only 29% of rainwater. Our result will be useful when evaluating the impact of tillage on soil moisture content and even studying soil erosion in agriculture land.
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6c79af92-71bb-4ead-997c-899c78614074@surfguest.nl said...

I'm doing my research paper on the soil surface roughness and its infleunce on the decrease or increase water/particle transfering. Is there a chance to cite this article too? I've been a member of the Soil Science Society of America since 2016 and my internship course has just ended, so I need to confirm my position and pass the tests.

Soil roughness and overland flow by Ingrid Takken, Gerard Govers, Katharina Helming top essay writer group.

2019-10-22   9:28:16
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2019-12-16   11:09:00
623e4ddb-373f-428c-8d02-815c4a0ad71a@surfguest.nl said...

Soil surface micro-topography or roughness defines the physical boundary between overland flow and soil. Due to its unique position, soil roughness potentially affects surface processes such as infiltration, flow routing, erosion and sedimentation.

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2020-01-09   14:58:39
2a9e4d2b-f707-446d-94f7-165df7bbc613@surfguest.nl said...

Climate change is increasing the occurrence of extreme precipitation events and causing irregular precipitation patterns. This occurs in parallel with the degradation of crop fields, and triggers the occurrence of pluvial floods and droughts on the same field. Consequently, irrigation must be adapted to the changing soil properties. Detailed spatial and temporal measurements of changes in infiltration are required. This study aimed to quantify changes in infiltration for a subhumid irrigated cropland with various soil types (Phaeozem, Solonetz, Chernozem) and field conditions (seedbed and stubble) by simulating rainfall. As the soil structure determines hydrology, the aggregate stability/surface roughness was tested as a proxy of infiltration through photogrammetry. The soil losses caused by precipitation did not exhibit connections to changes in the surface roughness, and lower aggregate stability did not necessarily cause lower infiltration intensities, suggesting that sedimentation could only partly seal drainage pores. The final infiltration intensities varied within a wide range (0.2–28.4 mm h−1). Seedbed preparation did not increase the volume of micropores (<10 µm), which resulted in higher infiltration under stubble. Photogrammetry was found to be a potentially useful tool for measuring aggregate stability, however, further investigations on in situ soil surfaces are required for technical improvement.

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2020-01-09   15:11:34
623e4ddb-373f-428c-8d02-815c4a0ad71a@surfguest.nl said...

It is observed in this study, that the infiltration rate of the soil gradually decreases with the increment in cumulative rainfall. Zhao et al. (2018) claim that, once the infiltration rate is lower than rainfall intensity, the excess of the precipitated depth contributes to the storage of water in the superficial depressions and, consequently, the runoff increases.

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2020-01-09   15:14:46
623e4ddb-373f-428c-8d02-815c4a0ad71a@surfguest.nl said...

The objective of this study was to quantify the amount of rainwater that infiltrates, is temporarily stored in surface depressions and flows out of the surfaces during rainfall events. A set of tillage-induced rough surfaces with slope steepness of 10° and 15° was used under simulated rainfall, and a smooth surface served as a control. Rainfall intensities were 60 and 120 mm h−1, and two soil erosion periods, overland flow erosion period (OFEP) and rill flow erosion period (RFEP), were monitored for each rainfall intensity. The results showed that for OFEP, infiltration water was 58% and 76% of the total rainwater on the rough surfaces and was approximately 1.5 and 2 times greater than that on the smooth surfaces for the different rainfall intensities.

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2020-01-09   15:55:48
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2020-01-09   20:42:34
623e4ddb-373f-428c-8d02-815c4a0ad71a@surfguest.nl said...

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 sequence of 24 mm h−1 simulated rainstorms at 5% slope. Eight experiments were conducted under different upstream inflows and subsurface regimes (drainage or seepage). Collected data include time to runoff initiation and fluxes of water and particles after an apparent steady state was reached. Depressions delayed the runoff initiation by storing water into puddles and enhancing infiltration. Once runoff reached an apparent steady state, surfaces with initial depressions produced 10% greater water flux than the initially smooth surfaces, regardless, the subsurface moisture regime. Roughness had no significant effect on steady-state particle flux and concentration. Our results indicate that the only assured soil and water conservation benefit from surface depressions is due to the delay in runoff initiation at the beginning of the rain event before the entire surface is contributing to runoff.

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