Brown Earth

• Deciduous trees have long roots


  These recycle nutrients in the soil
• Deciduous trees drop leaves


  These are broken down by the weather and organisms
• The long roots go to the parent material


  The releases minerals into the soil
• Soft rock (e.g. Schist)


  Create a thick soil
• Hard rock (e.g. Shale)


  Create a thin soil
• High rates of decomposition 


  In summer due to high temperatures
• More precipitation in winter


  Leaching of iron and aluminium
• Mild acidic humous


  Decomposition of leaf litter by temperature and organisms
• Gently sloping land


  Thicker soil due to low rate of erosion
• Thick soil is porous


  Better drainage so less waterlogging
• Lots of organisms


  Aerated soil as it is mixed
• A/B horizon are mixed


  Lots of organisms
• The A horizon colour


  is dark brown
• The B horizon colour is 


  Light brown