2019MCM/ICMSummarySheet(Yourteam'ssummaryshouldbeincludedasthefirstpageofyourelectronicsubmission.)Typeasummaryofyourresultsonthispage.Donotincludethenameofyourschool,advisor,orteammembersonthispage.Ecosystemsprovidemanynaturalprocessestomaintainahealthyandsustainableenvironmentafterhumanlife.However,overthepastdecades,rapidindustrialdevelopmentandotheranthropogenicactivitieshavebeenlimitingorremovingecosystemservices.Itisnecessarytoaccesstheimpactofhumanactivitiesonbiodiversityandenvironmentaldegradation.Themainpurposeofthisworkistounderstandthetrueeconomiccostsoflanduseprojectswhenecosystemservicesareconsidered.Tothisend,weproposeanecologicalserviceassessmentmodeltoperformacostbenefitanalysisoflandusedevelopmentprojectsofvaryingsites,fromsmall-scalecommunityprojectstolargenationalprojects.Wemainlyfocusonthetreatmentcostofenvironmentalpollutioninlandusefromthreeaspects:airpollution,solidwasteandwaterpollution.Wecollectpollutiondatanationwidefrom2010to2015toestimateeconomiccosts.Wevisuallyanalyzethechangeineconomiccostsovertimeviasomecharts.Wealsoanalyzehowtheeconomiccostchangeswithtimebyusinglinearregressionmethod.Wedividethedataintosmallcommunityprojectsdata(livingpollutiondata)andlargenaturaldata(industrialpollutiondata).Ourresultsindicatethattheeconomiccostsofrestoringeconomicalservicesfordifferentscalesoflandusearedifferent.Forsmall-scaleland,accordingtoouranalysis,thetreatmentcostoflivingpollutionisabout30millioneveryyearinChina.Withtherapiddevelopmentoftechnology,thecostislowerthanpastyears.Forlarge-scaleland,accordingtoouranalysis,thetreatmentcostofindustrialpollutionisabout8million,whichislowerthancostoflivingpollution.Meanwhilethecostistrendingdownduetotechnologydevelopment.Thetheorydevelopedhereprovidesasoundfoundationforeffectivedecisionmakingpoliciesonlanduseprojects.Keywords:economiccost,ecosystemservice,ecologicalserviceassesmentmodel,pollution.TeamControlNumberForofficeuseonlyForofficeuseonlyT1________________F1________________T2________________F2________________T3________________ProblemChosenF3________________T4________________F4________________ETeam#1909647Page2of18Content1.Introduction.......................................................................................................32.VariableDescription...........................................................................................32.1Definitions.............................................................................................33.ModelDefinitionsandResults...........................................................................43.12010-2015AirPollutionVirtualGovernanceCost................................43.22010-2015SolidWasteVirtualGovernanceCost.................................83.32010-2015WaterPollutionVirtualGovernanceCost........................113.4TotalGovernanceDataAnalysis..........................................................143.5ModelAnalysisOverTime..................................................................154.Conclusions......................................................................................................164.1Strengths.............................................................................................174.2Weakness............................................................................................174.3ModelImprovement...........................................................................175.References........................................................................................................18Team#1909647Page3of181.IntroductionToday,withtherapiddevelopmentofsocialindustrializationandmodernization,onethingwemustadmitisthatintheprocessofindustrializationindifferentregions,countriesandeventhewholeworld,wearetryingtomaximizetheeconomicbenefitsoflimiteddevelopmentspace,butatthesametime,theimpactofdecision-makingonthebiosphereisalsoignored.Itiswellknownthatthebiosphereprovidesmanynaturalprocessestomaintainhealthyandsustainablehumanlivingenvironments,whicharecalledecosystemservices.Itnotonlyprovidesfood,medicineandrawmaterialsforindustrialandagriculturalproduction,butalsomaintainsthelifesupportsystemthathumanbeingsrelyonforsurvivalanddevelopment.Atpresent,theinternationallyrecognizedecosystemservicefunctionclassificationsystemisaclassificationmethodproposedbyMAworkinggroup.MA'secosystemserviceclassificationsystemdividesthemainservicefunctiontypesintofourfunctiongroups:product,rule,cultureandsupport.Thus,theecosystemservicefunctionisthefoundationofhumancivilizationandsustainabledevelopment.Butasweuseandupdateourenvironment,wemaylimitoreliminateecosystemservices.Althoughtheseactivitiesseeminsignificant,theydoaffecttheecosystemtosomeextent.Therefore,weintroducethevirtualcostmanagementmethod,whichaimstoevaluatethecostofenvironmentaldegradationbycalculatingthecostofpollutioncontrol.Thisallowsforacomprehensiveassessmentofprojectsunderconstruction,thusensuringtheresilienceandsustainabilityofecosystemserviceswhileutilizinglandresources.Toensuretheintegrity