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Walking In Veseli


What is eutrophication? It is a process in which large quantities of nutrients, especially nitrogen and phosphorus, are added to an aquatic system.

Where do the nutrients come from? Nitrogen and phosphorus are released from soil or during decomposition of dead organisms. Human activities contribute significantly – e. g. artificial fertilizers contain a lot of nitrogen and phosphorus, which are then rinsed off from fields into water systems. Phosphorus is also part of most laundry detergents.

Why is eutrophication bad? Especially in stagnant waters, the high nutrient content leads to an enhanced growth of algae and cyanobacteria. The decay is also fast. A lot of the oxygen from the water is used up in the process while the decaying mass accumulates at the bottom. This altered water environment is unsuitable for fish and other organisms. Some cyanobacteria release toxins, so bathing in such water poses a health risk.

enhanced growth of algae and cyanobacteria


Eutrophication can be limited by:

GPS position

N 48° 56.883', E 17° 22.216'



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Marie Petrů
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