Saturday, June 24, 2017

4.16: Understand that Eutrophication can Result from Leached Minerals from Fertiliser

EUTROPHICATION: When Fertilisers are Washed Off from Land into Rivers and Lakes by Rain

EUTROPHICATION
Diagram Showing the Process of Eutrophication Over a Time Period
EXPLANATION:

  1. Excessive Nutrients from Fertilisers on Land are Washed into Rivers and Lakes by Rain
  2. Excessive Nutrients will Allow Rapid Plant Growth such as Algae, Duckweed and Other Plants
  3. Rapid Algae Growth will cause Algae Bloom to Form on the Surface, Blocking Sunlight from Reaching Plants Underneath. Plants will Die as a Result, causing Less Photosynthesis to Take Place so will cause Depletion of Oxygen levels
  4. Decomposers (Bacteria) will Further Deplete Oxygen levels as they will Respire Aerobically to Break Down Dead Plants
  5. Death of the Ecosystem will Occur as Oxygen Levels Reaches a Point where No Life is Possible, causing Aquatic Organisms to Die such as Fish

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