Eutrophication. By Oli Murphy A Team Pickles Production. A Definition.
By Oli Murphy
A Team Pickles Production
Eutrophication is caused by a runoff of fertiliser which increases the nutrients in the waterways that in turn increases the fertility. This means there is greater competition and a large amount of plants die. Bacteria use the dead matter in respiration, absorbing oxygen from the water so that other organisms in the water cannot respire
Here is an example of an experiment in a
Lake in which on one side of the boom
fertiliser has been added whilst the other
side has been left natural
The most important thing is to use organic fertilisers. These break down a lot slower and so not all the nutrients are released at once reducing the plant bloom
Spraying fertilisers at appropriate times of year is also important when it is not likely to washed off by rain into water ways
Fertilisers should not be sprayed around streams rivers and lakes so that they do not become contaminated.