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1、ECOLOGICALINFORMATICS3(2008)13–25availableatwww.sciencedirect.comwww.elsevier.com/locate/ecolinfAcasestudyonqualitativemodelevaluationusingdataaboutriverwaterqualitySymoneC.S.Araújo,PauloSalles⁎,CarlosH.SaitoInstituteofBiologicalSciences,UniversityofBrasília,CampusDarcyRibeiro,AsaNorte,70904-97
2、0,Brasília,DF,POBox04457,BrazilARTICLEINFOABSTRACTKeywords:Qualitativereasoninghasbeensuccessfullyusedforecologicalmodelling,particularlyQualitativereasoningwhennumericaldataarenotavailable.However,inordertofurtherexplorethepotentialofModelevaluationthismodellingapproach,itisimportanttodiscussh
3、owtoincorporatenumericaldata,ifWaterqualityavailable,andtodevelopmeanstoevaluateconceptualaspectsandmodeloutputs.ThisWaterresourcesmanagementpaperdescribesastudyonqualitativemodelevaluation,inwhichnumericaldataaboutwaterqualityareusedtodefinedifferentscenariosinawaterbasin,sothattheoutputsofsim
4、ulationswiththemodelcanbecomparedtotheactualsystem.Themodelwasevaluatedbyindependentexperts,concerningitsconceptualandoperationalaspects,andwithrespecttoitspredictivecapability.Themodelwasconsideredvalidfortheintendeduse,whichistoincreasetheunderstandingofnon-expertwatermanagers.©2008ElsevierB.
5、V.Allrightsreserved.1.IntroductionThemodeldescribestheMonteiroriverwaterbasin,asmallbasinlocatednearBrasilia,intheFederalDistrict,Brazil.Aremodelstruthfulrepresentationsofecologicalsystems?AsThisbasinwasselectedbecauseitpresentsgreatdiversityoftheuseofmodelsastoolsfordecisionmakingandpublicland
6、uses:protectedareas,agriculturalactivities,consolidatedpolicyformulationisquicklyincreasing,concernabouttheurbanareasandareasundergoingconsolidation.Detailsaboutcorrectnessofmodeloutputsgrows.However,therearenothestudyarea,themodelandtheevaluationprocesscanbeuniversallyacceptedrulesformodeleval
7、uation—andfoundinAraújo(2005).Theworkdescribedhereaimsatsemantic,philosophicalandpracticalaspectsoftheevalua-answeringthefollowingresearchquestion:istheknowledgetionprocesshavebeensubjectofathornydiscussion(forancapturedinthemodel
