简介：Populationgrowthanddevelopmentpatternshaveasignificantimpactontheenvironmentalperformance.Theissueofconcerniswhetherpopulationgrowthortheconsumption/productionpatternsareresponsibleforenvironmentaldeterioration.Thispaperisanattempttocapturetheimpactoftechnologicaldevelopment,affluence,andpopulationonenvironmentalperformanceindex,whilepreviousstutheshadcapturedtheimpactofthesethreefactorsonenvironmentonlythroughCO2emissions.Theanalysisrevealsthattechnologicaldevelopmentandpopulationsizehaveanegativeimpactonenvironmentalperformance,whereasmeasurestoimproveaffluencehaveapositiveimpact.Technologicaldevelopmenthasincreasedtheproductionofenergyefficientproductsbutatthesametimeconsumptionoftheseproductshasincreasedmanifoldleadingtoenvironmentaldeterioration.Demographicattributesneedspecificattentiontoimproveenvironmentalperformance.Thispaperconcludesonsomepolicyreflectionsonslowingthepopulationgrowthaswellaspersuadesindividualsandeconomiestorelooktotheirconsumptionandproductionpatternsandchannelizetheireffortstoprotecttheenvironment.

简介：Ecologicaleconomicsandsustainabledevelopmenteconomicsarethebasictheoriestoresearchoncirculareconomy.Throughthesystemicallyresearchontherelationshipofthethreeabove,thispaperthinksthatthereuseandrecycleofcirculareconomyisawaythatthestallismendedafterasheepislost.Althoughthereductiontechnicallycontrolstheproductionprocess,itcannotsolvethewastecausedbyblindproductionandexcesscompetition.Wehaveexperiencedvarietyobstacleswhenimplementingthecirculareconomy,whosemainreasonistheconflictbetweentheindividualrationandthesocialration.Therefore,onlywhentheindividualrationandsocialrationinclinetoconformity,thecooperatingNashequilibriumwillbeappeared.Inordertorealizetheharmonyofecology,economyandsociety,wehavetoexploreeffectiveevaluationtheory.Thispapercitesthe'fiveflowsofwealthoperationtheory'fromprofessorMaChuandongtosearchoperationmechanismofcirculareconomy,makesclearthedevelopingthoughtsofcirculareconomybasedontherealities,andbringsforwardsomecountermeasurestodevelopcirculareconomybasedontheabovetheoreticalanalysis.

简介：

简介：1.We,therepresentativesofnationalandlocalgovernments,representativesofutilitiesandtheprivatesector,UnitedNationsagencies,multilateralfinancialinstitutions,otherinternationalorganizations,non-governmentorganizations,thescientificcommunityandacademia,andinternationalindustryassociations,

简介：ForestpolicyevolutionwaspresentedfirstlyinordertounderstandthebackgroundofforestpolicydevelopmentinChina.Therecentchangesofforestpolicywereintroducedindetails,includingforestpoliciesonimprovingbiodiversityconservationandsecuringnationalecologicalsafety,restoringkeyecosystems,promotingsustainableforestmanagement(SFM),clarifyingforestlandtenureandprotectingfarmer’srightonforestandforestlandmanagement,promotinghealthyforestryindustrydevelopment...

简介：Withthedeteriorationofglobalclimateinrecentyears,climatechangeremainsasahotissuetowhichtheinternationalcommunitypayscloseattention.2007couldbecalledthe'YearofClimateChange'.InApril,theUnitedNationsSecurityCouncilheldanopendebateonclimatechangeandinternationalsecurityforthefirsttime,greatlyenhancingtheimportanceofclimate

简介：

简介：

简介：TheHeilongjiangNationalityEconomicDevelopmentCorporationisaforeigntradeenterpriseapprovedbytheMinistryofForeignTradeandEconomicCooperation.Aftereightyears,thecorporation,co-establishedbymanyminoritynationalities,hasdevelopedintoaforceinforeigntrade,withtransnationaljointventures,shipping,tourismandculturalinterests.

简介：

简介：

简介：

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

简介：Multi-functionaldendrometerisakindofforestrytoolthatcanmeasuremultiplefactorsofforest.Bycombiningsensortechnologyandcomputertechnology,adigitalmulti-functiondendrometerhasbeendeveloped,whichintegratedthefunctionsofmeasuringheight,distance,azimuth,slope,elevation,formquotientofanypartsofthestemintoonebodyatthesametest.Thedendrometercanfitthecomplexforestenvironment,solvethedifficultproblemsinaspectsofplantheight,measuredistance,centraldiameterandformquotientofbreastheight.Theaccuracycanmeettherequirementsofgeneralforestsurvey.

简介：

简介：ThestudywasmadebyobservingtheannualchangeofthegonadaldevelopmentofamphioxusinXiamencohtinuouslyfortwoyearsfromNovember,1986toNovember,1988.Wedeterminedthegonadaldiameter,gonadosomaticindexofeachamphioxus,andobservedthehistologicalcharacteristicofthegonadaldevelopmentofthefemaleandmalebycutsection,whichprovidedthebasisfordividingthestagesgonadsandthedetermininglevelofthegonadaldevelopmentofamphioxusineachmonth.

简介：

简介：Urbanforestry,whichroseinthewestinthelatterhalfofthe20thcentury,isatypeofforestryservingforcity.Itsimportantcharacteristicisthatitmakesthroughitsnarrowsense,or"urbanafforestation",whoseobjectiveistomakecitygreenandbeautiful,anddevelopsintoaforestrysystemservingfortheurbansystem.Theconsequenceofrapidmoderncivilizationisthatskyscrapersconcentrateinurbandistrictandgreenspacebecomenarrower,resultingthatgreen

简介：ThecurrentstatusofecotourisminruralChinawasanalyzedinthispaper.EmpiricalsurveyscoveringthewholecountryindicatethatecotourisminruralChinahasattractedalargenumberoftouristswho,however,didn’tgeneraterevenuesthatcanmatchthenumber.Althoughtheenvironmentalqualityofthoseruralecotourismdestinationsishighwithlittlenegativeimpacts,severalproblemshavealreadyappeared,suggestinganeedtomonitorthoseareas.Thecurrentpracticeofinterpretationinmostruralecotourismdestinationsdidnotprovideenvironmentaleducationopportunitiestothetourists.Andlocalcommunitiesneedmoreeffectivewaystodecideontheprospectsoflocalecotourismdevelopmentbythemselves.Finally,afewrecommendationsforimprovingthesustainabilityofecotourismdestinationswereprovided.

简介：WhileitisstillacontroversialissueregardingwhethertheNewWorldwasdiscoveredbytheancientChinesesailorZheng