6.1. General Sediment Process Overview

Try these first

1. 1.

   Define diffusion in the context of sediment processes.

   Hint

   Think about concentration gradients.

2. 2.

   What is resuspension?

   Hint

   Consider disturbances like rain or winds.

3. 3.

   What is the primary mechanism of chemical transport from sediments to water?

   • Advection
   • Resuspension
   • Diffusion

   Hint

   Remember the D in DRS stands for diffusion.

4. 4.

   True or False: Bioturbation slows down the transport of chemicals in sediments.

   • True
   • False

   Hint

   Consider how living organisms interact with sediment.

5. 5.

   Model the effect of increased storm intensity on the rates of diffusion and resuspension in a lake sediment environment.

   Hint

   Think about how storms disturb the sediment and affect chemical exchanges.

6. 6.

   Evaluate the long-term effects of bioturbation on sediment quality and related water quality parameters.

   Hint

   Consider both positive growth effects and negative pollutant transport implications.