An in-depth analysis of the micro topography of the soil crust when affected by rain splash

Church, Rachel (2007) An in-depth analysis of the micro topography of the soil crust when affected by rain splash. BSc dissertation, University of Portsmouth.

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    Within this study it has tried to emphasise the importance of particle size sorting upon the surface. Particle size sorting is associated with the first stages of soil erosion and the early formation of rills and gullies. Within this study it is trying to show whether there is a relationship of the spatial distribution where coarse and small particles are found, and what happens to a soil surface upon a slope angle over a four week period. It was found that over the four week period, that upon the surface of the soil the surface became flatter and the particles upon it became smaller and more sorted over time, although there were no specific characteristics to explain why this had occurred. The experiment was carried out by putting out three trays of soil at different slope angles and exposing them to natural weather conditions for four weeks. Every week the soil samples was taken indoors so that tests could be run on them, which included particle size analysis testing and laser scanning of the soil surface so that microtopographical features could be mapped to see the change upon the soil surface over time. The laser scanning occurred before samples were taken for the particle size analysis, so that the disturbance upon the soil surface was not mapped also. This study is trying to emphasise whether there is a certain soil surface feature which is associated with a particular soil particle size, this is important to know because this may prevent soil erosion if it is known where certain soil particles accumulate.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Science > Department of Geography
    Depositing User: Jane Polwin
    Date Deposited: 20 Jan 2011 12:47
    Last Modified: 28 Jan 2015 11:13

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