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Transcript

Annalie Sandor

Eutrophication

eu·troph·i·ca·tionyo͞oˌträfəˈkāSH(ə)n/nounnoun: eutrophication excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.

What IS Eutrophication?

Where does it occur?

› 28% lakes in Africa

› 48% lakes in Noth America› 41% lakes in South America

› 53% lakes in Europe› 54% lakes in Asia

Eutrophic Lake Levels

Schindler's 1974Cultural Eutrophication Experiment

Nutrient Cycle Lake Biwa

--Reduce sprinkler usage--Water only where/when necesary--Be careful with fertilizers--Prevent excess water runoff

Gardening Practices

Create vegetative barriers between the land being used, and the lake/river/pond that may absorb the nutrients

Riparian Buffers

--Don't over fertilize!--Reroute sewage disposal so it doesn't empty directly into waterways--Don't use detergents with phosphates & other clogging nutrients in them!

Educate People

Preventative Measures:

--How can we prevent non-point source pollution from contributing so heavily to cultural eutrophication?--How does the natural nutrient cycle of bodies of water affect eutrophication?

Conclusion

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