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AquaticRestorationLakesUnit6,Module24November2019WATERONTHEWEBObjectivesStudentswillbeabletodifferentiatebetweenrestorationrehabilitationandreclamationcompareandcontrastfunctionalrestorationandstructuralrestorationdefinelakerestorationanddescribeitsmajorgoalsdescribecurrentstatisticsregardinglakestressorsidentifyspecialchallengesencounteredinlakerestorationdefineandidentifyecoregionsinMinnesotaindicatepreventativestepsusedtocontrolsourcesofwaterpollutiondescribetheimpactofphosphorusinalakeenvironment.discussmeasuresusedtolimittheimpactsofphosphorusonlakesWATERONTHEWEBDevelopedby:AxlerandReedUpdated:11/26/03LakesU6-m24a-s2Objectivescont.assesstheeffectivenessoflakerestorationthroughanalysisofsiteexamplesidentifymethodsusedtocontrollevelsofalgalgrowthinlakesdiscusstheeffectivenessandconcernsoflakedredgingdescribethegoalsandprinciplesofbiomanipulationusedinlakerestorationdescribefourtypesofzooplanktonandexplaintheirmportancediscusstheeffectivenessandconcernsofusingalgicides.identifyphysicalmethodsusedforcontrollingweedgrowthinlakesdiscusschemicalandbiologicalmethodsforcontrollingweedgrowthinlakesrelatetheprinciplesoflakescapingWATERONTHEWEBDevelopedby:AxlerandReedUpdated:11/26/03LakesOverviewIntroduction1.LakeRestoration2.StreamRestoration3.WetlandRestorationWATERONTHEWEBDevelopedby:AxlerandReedUpdated:11/26/03LakesRestorationDefinedReturnanecosystemtoacloseapproximationofitsconditionpriortoadisturbance"(Berger1990)Actofrestoringtotheoriginalstateorahealthyorvigorousstate"(Bradshaw2019)Historicconditionspreviouslyexistingonthesiteillbere-established,includingtheentirefunction,structure,andgeneticcompositionReturnoffundamentalprocessesbywhichecosystems(biologicalandnon-biologicaelements)workWATERONTHEWEBDevelopedby:AxlerandReedUpdated:11/26/03LakesRestorationrehabilitationorreclamation?RestorationtohistoricconditionsasagoalisofteneitherimpossibleduetolandusechangesinthewatershedortooexpensiveRehabilitation:returnscertainfunctionsandstructuresofthenaturalecosystematapreviousstate,butnottheoriginalconditionReclamation:providesservicesbyreturningcertainfunctionsandstructuresbringingtheecosystemtoausefulstate,butsomethingotherthantheoriginalconditionWATERONTHEWEBDevelopedby:AxlerandReedUpdated:11/26/03LakesFunctionorstructure?Whatareyoutryingtorestore?ExamplesofFunctionsSurfaceandgroundwaterstorage,recharge,supplyFloodwaterandsedimentretentionTransportoforganisms,nutrients,sediments●NutrientcyclingBiomassproduction,foodwebsupport,speciesmaintenanceWATERONTHEWEBDevelopedby:AxlerandReedUpdated:11/26/03LakesU6-m24a-5Functionorstructure?Whatareyoutryingtorestore?ExamplesofStructure●SoilconditionGeologicalcondition●HydrologyWaterqualityTopographyMorphologyFloraandfaunaWATERONTHEWEBDevelopedby:AxlerandReedUpdated:11/26/03LakesU6-m24a-s8EcosystemFunctionReclamationOriginalEcosystemRestorationRelhabilitationDegradedEcosystemEcosystem(ModifiedfromBradshaw2019)StructureWATERONTHEWEBDevelopedby:AxlerandReedUpdated:11/26/03LakesU6-m24a-59SettingProjectGoalsNooneparadigmorcontextforsettingrestorationgoals"(Ehrenfeld2000)Inthepast,goalsusuallyfocusedon:SinglespeciesDrawback:changesmightbecounterproductiveforotherspeciesEcosystemfunctionsDrawback:managersmighteitherhavespecific

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