Source: Food and
Agriculture Organization of the United Nations, 2013, Kieran Noonan-Mooney, CBD
and Christine Gibb, CBD and FAO, "The Youth Guide to Biodiversity"
1st Edition (Chapter 2) Youth and United Nations Global Alliance. Reproduced
with permission.
Chapter 2. Verbatim.
In eutrophic water bodies, such as lakes and ponds, the concentration of chemical nutrients is so high that algae and plankton begin to grow rapidly. As these plants grow and decay, the water quality and the amount of oxygen in the water decline. These conditions make it difficult for many species to survive. The excess nutrients that cause this situation mostly come from fertilisers, erosion of soil containing nutrients, sewage, atmospheric nitrogen deposition and other sources.
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