【6A文】湖泊生态修复-教程-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.describecurrentstati

2、sticsregardinglakestressors.identifyspecialchallengesencounteredinlakerestoration.defineandidentifyecoregionsinMinnesota.indicatepreventativestepsusedtocontrolsourcesofwaterpollution.describetheimpactofphosphorusinalakeenvironment.discussmeasuresusedtol

3、imittheimpactsofphosphorusonlakes.Objectivescont.assesstheeffectivenessoflakerestorationthroughanalysisofsiteexamples.identifymethodsusedtocontrollevelsofalgalgrowthinlakes.discusstheeffectivenessandconcernsoflakedredging.describethegoalsandprinciplesof

4、biomanipulationusedinlakerestoration.describefourtypesofzooplanktonandexplaintheirimportance.discusstheeffectivenessandconcernsofusingalgicides.identifyphysicalmethodsusedforcontrollingweedgrowthinlakes.discusschemicalandbiologicalmethodsforcontrollingw

5、eedgrowthinlakes.relatetheprinciplesoflakescaping.OverviewIntroductionLakeRestorationStreamRestorationWetlandRestorationRestorationDefined“Returnanecosystemtoacloseapproximationofitsconditionpriortoadisturbance”(Berger1990)“Actofrestoringtotheoriginalst

6、ateorahealthyorvigorousstate”(Bradshaw1996)Historicconditionspreviouslyexistingonthesitewillbere-established,includingtheentirefunction,structure,andgeneticcompositionReturnoffundamentalprocessesbywhichecosystems(biologicalandnon-biologicalelements)work

7、Restoration,rehabilitationorreclamation?RestorationtohistoricconditionsasagoalisofteneitherimpossibleduetolandusechangesinthewatershedortooexpensiveRehabilitation:returnscertainfunctionsandstructuresofthenaturalecosystematapreviousstate,butnottheorigina

8、lconditionReclamation:providesservicesbyreturningcertainfunctionsandstructuresbringingtheecosystemtoausefulstate,butsomethingotherthantheoriginalconditionFunctionorstructure?Whatareyoutryingtorestore?ExamplesofFunctionsSurfaceand