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简介:Inthepast,evaluationsofecosystemfunctionsweremostlybasedonCostanza'smodel,whereasthespatial,qualityandtemporalcharacteristicsofregionalecosystemswerenotconsideredinthemodel.Focusingontheseissues,coefficientsofregionaldifference,spatialheterogeneityandwillingness-to-pay(WTP)wereestablishedtomodifyCostanza'smodel,andanewcomprehensivevaluationmodelofecosystemfunctionsisproposed.TheanalyticalresultsindicatethatthecomprehensivemodelcouldevaluateregionalecosystemfunctionsinChinaaccuratelyandprovidemorehelpfulinformationfordecision-making.TheempiricalstudyonZhangbeiCountyinHebeiProvinceshowsthattheintensivehumanactivitiescouldlimittheprovisionofecosystemfunctionswhiletheplannedecologicalprogramsmightpromotetherestorationofecosystemfunctions.
简介:Theproblemofhouseholdsolidwastehasbeenconcernedandresearchedonbymunicipalitiesandresearchers.Atpresent,householdsolidwastehasbeenchangedtomanagementproblemfromtechnicalone.Fromthepointviewofmanagement,theresearchonhouseholdsolidwasteistostudythefactorswhichinfluenceresident’sbehaviorofmanagingtheirwaste.Basedontheliteraturereview,firstly,thispapersummarizesthosefactorswhichhavealreadybeenidentifiedtohaveimpactonresident’sbehaviorofmanagingtheirwaste.Theyaresocial-demographicvariables,knowledge,environmentalvalues,psychologicalfactors,publicityandsystemdesign.Secondly,threetypicalmodelsoftherelationshipbetweenfactorsandbehavior,whicharefactorsdeterminingtaskperformanceinwastemanagement,conceptualizationofwastemanagementbehaviorandthetheoreticalmodelofrepeatedbehavioronhouseholdwastemanagement,areanalyzedandthedeficienciesofthesemodelsarealsoanalyzed.Finally,accordingtothecurrentsituationinhouseholdwastemanagementandthecultureandresident’shabitsinChina,thispaperputsforwardaresearchfocusandsuggestionsaboutresident’sbehaviorofhouseholdsolidwastemanagement.
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简介:Toreversethecontinuousdeteriorationofgrasslandecologyandtoimprovethewell-beingofherders,Chinahasbeenformulatingmanynationalpoliciesonpaymentsforgrasslandecologicalconservation.Oneofthem,theGrasslandEco-compensationPolicy(GEP),isthebiggestprogramforgrasslandprotectioninChinasince1949.TheGEPconservesnaturalgrasslandbypayingherderscashsubsidies.Italsohasworldwidesignificancebecauseitcanincreasevegetativecover,improvetheecologicalbalance,increasecarbonsequestrationandlessentheamountofdustreachingothercountriesthroughinhibitingsoilerosion.Overall,wefindthatitsecologicalandsocioeconomiceffectsarebeneficialandfurtherbenefitsmaybeobservedinthefuturebecausewhilethesocioeconomiceffectsusuallyappearquickly,ecologicaleffectsmaytakelongertomanifest.2015isthelastyearforthefirstroundoftheGEPpolicyimplementationandtheextendedpolicyfortheGEPwillbeapprovedandcontinuedbythecentralgovernment.Tomakethepolicymoresuccessful,wesuggestcoordinatedplanning,acomprehensiveoverview,highercompensationandcollaborativestudy.EfficientimplementationoftheGEPcouldalsoprovidevaluableexperienceforothereco-compensationprogramsinChinaandnumerousotherregionsoftheworld.
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