简介：Tobuildtheartificialforestecosystemisthemajoreco-economicdevelopmentmodelinthewatershedofMiyunReservoir.Itisveryimportanttoevaluatethebenefitsofthoseecosystems.Emergytheoriesareveryhelpfulforustoestablishascience-basedassessmentframework.EmergyevaluationoftheartificialforestecosystemsinthewatershedofMiyunReservoirisusedtoassestherelativevaluesofseveralecologicalfunctions(sometimescalledecosystemservices)andmainecosystemstorages(sometimescallednaturalcapital).Themaindrivingenergies,internalprocessesandstoragesareevaluated.Themainfunctions,includingtranspiration,GPPandinfiltration,areevaluated,whichare609em$/ha/yr,6,245em$/ha/yrand340em$/ha/yrrespectively.Thetotalvaluesofmajorenvironmentalservicesare4,683em$/ha/yrintheartificialforestecosystem.Themainstoragesofnaturalcapitalincludinglivebiomass,soilmoisture,organicmatter,undergroundwaterandlandformareestimated,whichare112,028em$/ha,9em$/ha,40,718em$/ha,34em$/haand6,400,514em$/harespectively.Thelargestvalueislandform,whichaccountsfor97.7%ofthesecalculatedtotalemdollarvalues.Theconceptofreplacementvalueisexploredusingtheemergyvaluesofbothecosystemservicesandnaturalcapital.Thetotalcalculatedreplacementvaluesare302,160em$/ha.

简介：Thepaperresearchesonthepatternofman-landrelationshipofartificialoasisintheeastofnorthTian-shanMountain,thedevelopmentofQitaiartificialoasisanditsrelationshipwithenvironment,analyzesthefactorsin?uencingthechangeofQitaiartificialoasisandeconomicgrowththroughgreyanalysis,andsuggeststheap-proachesofsustainabledevelopmentofQitaiartificialoasis.Researchshowsthatthepatternofartificialoasisanditsenvironmenthadgonethroughthreephases:therelativelyharmoniousstage,theunharmoniousstage,andthenewfragilebalancestage.Italsoshowsthatthegardenandtheshelter-forestareusefultothesustainabledevelop-mentofQitaioasisaccordingtogreyanalysis.