Measuring splash erosion initiated by simulated rainfall
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00326252" target="_blank" >RIV/68407700:21110/18:00326252 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Measuring splash erosion initiated by simulated rainfall
Original language description
Rainfall simulators are common tool used to study the impact of rainfall on soil surface. This studypresents the effect of various rainfall intensities and kinetic energies to splash erosion under controlled experimental conditions. We utilized “Norton ladder” laboratory rainfall simulator to recurrently simulate several rainfall patterns with predefined kinetic energy and rainfall intensity. First, twelve positions under the simulator were fixed and the rainfall kinetic energy and intensity were measured for those positions. Range of the kinetic energy was 112 through 574 J m-2 h-1 and range of the rainfall intensity 23 through 71 mm h-1. Second, a soil sample contained in round plastic cup with a surface area of 88 cm2 was positioned in the centre of the splash cup with outer diameter of 45 cm. The splash cups were placed on the preselected positions. After every rainfall simulation, the splashed material was collected, filtered and dried in an air dryer to estimate total amount of soil loss. For each of the samples a photographs of the surface were taken before and after the experiments to create digital model of the surface and to calculate changes in roughness and rate of soil compaction. More repetitions were measured for a proper statistical evaluation. We present first results of the observed relationships between rainfall intensity, kinetic energy and splash erosion. This project was funded by projects SGS17/173/OHK1/3T/11 and GA17-33751L.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10501 - Hydrology
Result continuities
Project
<a href="/en/project/GF17-33751L" target="_blank" >GF17-33751L: Kinetic energy of rainfall as driving force of soil detachment and transport</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů