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The effect of raindrop impact and sheet erosion on infiltration rate and crust formation
Year:
1996
Authors :
Morin, Joseph
;
.
Volume :
60
Co-Authors:
Morin, J., Soil Erosion Res. Stn., Rupin Institute Post, Ernek Hefer 60960, Israel
Van Winkel, J., Inst Agric, Larenstein, College Velp, Netherlands
Facilitators :
From page:
1223
To page:
1227
(
Total pages:
5
)
Abstract:
Soil crust formation can result from the beating action of falling drops (structural crust) or the deposition of entrained eroded suspension in shell flow (deposional crust). To determine the relative importance of the two processes, an experiment was carried out with rainfall simulation under laboratory conditions. Clay soil exposed to the beating action of rain drops produced sheet erosion, which was deposited on a layer of clean sand downslope of the same continuous slope. The thin crust that was formed on the two parts of the slope, the clay and the sand, reduced the infiltration rates in time to values of 1 to 5 mm h-1. In comparison with the uniform clay slope, the main difference was the longer time needed to reach the low infiltration rates. Preventing the sand part from any rain impact beating extended the time needed to obtain the low infiltration rates that were nearly the same as those of the clay slope. The results provoke the question is the common theory of compacted crust by rain impact such an important factor?.
Note:
Related Files :
CRUST FORMATION
Erosion
Gypsum
Infiltration rate
Minerals
Phosphogypsume
rain
Soil crusting
Soils
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Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
25592
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:16
Scientific Publication
The effect of raindrop impact and sheet erosion on infiltration rate and crust formation
60
Morin, J., Soil Erosion Res. Stn., Rupin Institute Post, Ernek Hefer 60960, Israel
Van Winkel, J., Inst Agric, Larenstein, College Velp, Netherlands
The effect of raindrop impact and sheet erosion on infiltration rate and crust formation
Soil crust formation can result from the beating action of falling drops (structural crust) or the deposition of entrained eroded suspension in shell flow (deposional crust). To determine the relative importance of the two processes, an experiment was carried out with rainfall simulation under laboratory conditions. Clay soil exposed to the beating action of rain drops produced sheet erosion, which was deposited on a layer of clean sand downslope of the same continuous slope. The thin crust that was formed on the two parts of the slope, the clay and the sand, reduced the infiltration rates in time to values of 1 to 5 mm h-1. In comparison with the uniform clay slope, the main difference was the longer time needed to reach the low infiltration rates. Preventing the sand part from any rain impact beating extended the time needed to obtain the low infiltration rates that were nearly the same as those of the clay slope. The results provoke the question is the common theory of compacted crust by rain impact such an important factor?.
Scientific Publication
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