2.5.2. Factors Affecting Permeability

Try these first

1. 1.

   What is permeability?

   Hint

   Think about how water moves through different types of soils.

2. 2.

   Which type of soil typically has high permeability: coarse or fine?

   Hint

   Consider the size of soil grains in relation to water flow.

3. 3.

   Which soil type has higher permeability?

   • Clay
   • Sand
   • Silt

   Hint

   Consider the texture of each soil type.

4. 4.

   True or False: Higher void ratios generally decrease permeability.

   • True
   • False

   Hint

   Think about the relationship between void space and water flow.

5. 5.

   Design a drainage system in an area with varying soil types, explaining how each factor affecting permeability will influence your design.

   Hint

   Identify which soils will need more drainage measures compared to others.

6. 6.

   Explain how permeability might change with the addition of organic matter in soil. Consider each factor discussed.

   Hint

   Think about how compost affects the soil texture.