Outline how soil fertility changes through succession.
(Consider the changes in organisms present, nutrient cycling, and soil erosion.)
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Explain how the following human activities can affect soil fertility.
(Deforestation, Intensive Grazing, Irrigation, Monocultural Farming,Urbanisation)
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Describe the processes of soil erosion: sheet wash, gullying and wind erosion.
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For each of the above processes, outline how farming (or other human practices) may result in soil erosion.
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