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1、AquaticRestoration Lakes湖泊修復(fù)教程ObjectivesStudentswillbeableto:differentiatebetweenrestoration,rehabilitation,andreclamation.compareandcontrastfunctionalrestorationandstructuralrestoration.definelakerestorationanddescribeitsmajorgoals.describecurrentstatisticsr
2、egardinglakestressors.identifyspecialchallengesencounteredinlakerestoration.defineandidentifyecoregionsinMinnesota.indicatepreventativestepsusedtocontrolsourcesofwaterpollution.describetheimpactofphosphorusinalakeenvironment.discussmeasuresusedtolimittheimpac
3、tsofphosphorusonlakes.Objectivescont.assesstheeffectivenessoflakerestorationthroughanalysisofsiteexamples.identifymethodsusedtocontrollevelsofalgalgrowthinlakes.discusstheeffectivenessandconcernsoflakedredging.describethegoalsandprinciplesofbiomanipulationuse
4、dinlakerestoration.describefourtypesofzooplanktonandexplaintheirimportance.discusstheeffectivenessandconcernsofusingalgicides.identifyphysicalmethodsusedforcontrollingweedgrowthinlakes.discusschemicalandbiologicalmethodsforcontrollingweedgrowthinlakes.relatet
5、heprinciplesoflakescaping.OverviewIntroductionLakeRestorationStreamRestorationWetlandRestorationRestorationDefined“Returnanecosystemtoacloseapproximationofitsconditionpriortoadisturbance”(Berger1990)“Actofrestoringtotheoriginalstateorahealthyorvigorousstate”(
6、Bradshaw1996)Historicconditionspreviouslyexistingonthesitewillbere-established,includingtheentirefunction,structure,andgeneticcompositionReturnoffundamentalprocessesbywhichecosystems(biologicalandnon-biologicalelements)workRestoration,rehabilitationorreclamat
7、ion?RestorationtohistoricconditionsasagoalisofteneitherimpossibleduetolandusechangesinthewatershedortooexpensiveRehabilitation:returnscertainfunctionsandstructuresofthenaturalecosystematapreviousstate,butnottheoriginalconditionReclamation:providesservicesbyre
8、turningcertainfunctionsandstructuresbringingtheecosystemtoausefulstate,butsomethingotherthantheoriginalconditionFunctionorstructure?Whatareyoutryingtorestore?ExamplesofFunctionsSurfaceand
