【7A文】湖泊生态修复英文培训教程.ppt

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1、AquaticRestorationLakes湖泊修复教程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