Surface runoff and soil loss generation at an agricultural catchment with developed wheel-tracks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00336511" target="_blank" >RIV/68407700:21110/19:00336511 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Surface runoff and soil loss generation at an agricultural catchment with developed wheel-tracks

Popis výsledku v původním jazyce

Surface runoff and soil loss are affected by anthropogenic factors such as ploughing and wheel track compaction at agricultural catchments. Wheel tracks act as an obstacle for the surface flow if the orientation is perpendicular to the slope and as the main draining flow path if the orientation is in slope wise direction. Ploughing changes the soil structure in the shallow part of the soil profile, creates sharp delineation between topsoil and compacted subsoil and subsequently alters the natural infiltration and may create lateral subsurface runoff. Plot scale artificial rainfall / runoff experiments were designed to study the ploughing and wheel track compaction effect on the surface runoff and soil loss. Several experiments were carried out at mildly declined slopes (slope ca 10 %) at 16 m2 plots located at an experimental site in the central part of the Czech Republic utilizing Norton Ladder Rainfall Simulator. Experiments were replicated at (1) a plot without wheel track (noWT), (2) a plot with wheel track oriented slope wise (swWT) and (3) a plot with wheel track oriented perpendicularly to the slope (psWT). Artificial rainfall experiments were supplemented with geophysical measurement and measurement of penetration resistance. Wheel track at the swWT plot caused faster runoff and soil loss response to the rainfall and increased the total runoff volume and soil loss mass. Wheel track at the psWT plot disconnected the upper and lower part of the plot. The psWT plot was entirely connected when surface depressions were connected ... Experiments were carried out within the project LTC18030 - “The effect of land-use changes on soil erosion, sediment transport, water quality and rainfall-runoff balance” and were further supported by the project TJ01000270 - “Atlas HYDROLOGIE – modern tool for soil loss and runoff estimation, and design of water and soil protection measures” and internal CTU student graphs SGS17/173/OHK1/3T/11 and SGS18/122/OHK1/2T/11.

Název v anglickém jazyce

Surface runoff and soil loss generation at an agricultural catchment with developed wheel-tracks

Popis výsledku anglicky

Surface runoff and soil loss are affected by anthropogenic factors such as ploughing and wheel track compaction at agricultural catchments. Wheel tracks act as an obstacle for the surface flow if the orientation is perpendicular to the slope and as the main draining flow path if the orientation is in slope wise direction. Ploughing changes the soil structure in the shallow part of the soil profile, creates sharp delineation between topsoil and compacted subsoil and subsequently alters the natural infiltration and may create lateral subsurface runoff. Plot scale artificial rainfall / runoff experiments were designed to study the ploughing and wheel track compaction effect on the surface runoff and soil loss. Several experiments were carried out at mildly declined slopes (slope ca 10 %) at 16 m2 plots located at an experimental site in the central part of the Czech Republic utilizing Norton Ladder Rainfall Simulator. Experiments were replicated at (1) a plot without wheel track (noWT), (2) a plot with wheel track oriented slope wise (swWT) and (3) a plot with wheel track oriented perpendicularly to the slope (psWT). Artificial rainfall experiments were supplemented with geophysical measurement and measurement of penetration resistance. Wheel track at the swWT plot caused faster runoff and soil loss response to the rainfall and increased the total runoff volume and soil loss mass. Wheel track at the psWT plot disconnected the upper and lower part of the plot. The psWT plot was entirely connected when surface depressions were connected ... Experiments were carried out within the project LTC18030 - “The effect of land-use changes on soil erosion, sediment transport, water quality and rainfall-runoff balance” and were further supported by the project TJ01000270 - “Atlas HYDROLOGIE – modern tool for soil loss and runoff estimation, and design of water and soil protection measures” and internal CTU student graphs SGS17/173/OHK1/3T/11 and SGS18/122/OHK1/2T/11.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10501 - Hydrology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů