TheEffectOfFertilizersOnEutrophicationStudent’sname:MingYou(Tom),LiuFormClass:12ATeacher’sname:Mr.CallaghanFinishDate:27th/Augest/2012Content1.0Introduction--------------------------------------------------------------------------32.0Hypothesis----------------------------------------------------------------------------43.0Materialsandequipment----------------------------------------------------------54.0Methodology-------------------------------------------------------------------------65.0Results------------------------------------------------------------------------------7~86.0Discussion------------------------------------------------------------------------9~117.0Conclusion--------------------------------------------------------------------------128.0Appendix------------------------------------------------------------------------13~159.0ReferenceandBibliography-----------------------------------------------------161.0IntroductionPlantsarethemostimportantproducersonearthprovidingbothfoodandoxygen.Intheatmosphere,oxygenissuppliedbyplantphotosynthesis.70%to80%ofthisoxygenisderivedfromaquaticplants(Hall,2011).Thewaterplantsaresomeofthemostimportantplantstoproduceoxygenandthemostpopularfoodforaquaticanimals.Ontheotherhand,ifthenumberofwaterplantsincreaseinwaterways,itwillalsoaffectthelocalaquaticsystem,causingeutrophicationwhichistheprocessbywaterwaysacquireareallyhighconcentrationofnutrients,especiallynitrogensandphosphates.Theseapparentlypromoteexcessivegrowthofaquaticplants.Becauseofhumanactivitiessuchasfarmingandsewage,eutrophicationbecomesoneofthemostseriousbiologicalissues.Fertilizersprovidesomeofthemostessentialnutrientsbutoverusecanhavesignificantconsequences.Farmersuselargeamountsofchemicalfertilizersinordertohaveahigh-yieldharvestforfarming.Unfortunately,massiveamountsoffertilizersarewashedawayfromsoiltothewaterwaysbyrainfallandirrigation.Thiscausethelevelofnutritioninthewaterwaysrisesandexceedsthenormalindexinthewaterways,providing