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简介：ＡＴｒｉｐｔｏＴｉｂｅｔａｎＡｒｅａｓｉｎＳｉｃｈｕａｎａｎｄＱｉｎｇｈａｉＷＡＮＧＬＵＯＩｎｓｕｍｍｅｒｌａｓｔｙｅａｒ，ｍｙｆｒｉｅｎｄｓａｎｄＩｔｒａｖｅｌｌｅｄｔｏｔｈｅＴｉｂｅｔａｎａｒｅａｓｉｎＳｉｃｈｕａｎａｎｄＱｉｎｇｈａｉｐｒｏｖｉ...

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简介：Thetreesinurbanlandscapes,independentofwhethertheyareinurbanforestsorstandalone,canimproveenvironmentquality,enhanceindividualandcommunitywell-being,provideawiderangeofservicestoindividualsandcommunities,andproduceamorehealthfulandcomfortableenvironmentforthevastmajorityofthepopulation.Knowledgeofthepotentialsignificanceoftreesinurbanlandscapesisexpandingrapidlyasresearchcontinuestodocumenttheimportantrolethaturbanforestsandtreescanplayinimprovingthequalityofurbanlife.Theenvironmentalconditionsinurbanlandscapesare,however,verydifferentfromthenaturalconditionsthatthetreespeciesareadaptedto.Thisposesbigchallengestotheurbanforestryinitseffortstocreatehealthyandvaluabletreesinurbanlandscapes.Onlythroughimplementingsomeimportantmeasureswecanensurehighsurvivalrateofsaplingsandwell-beingandlongevityofurbantrees.

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简介：ＣＯＭＰＵＴＩＮＧＡＲＥＡＳＢＯＵＮＤＥＤＢＹＲＡＴＩＯＮＡＬＢＥＺＩＥＲＣＵＲＶＥＳＧｕｏｊｉｎＷａｎｇ；ＴｈｏｍａｓＷ．ＳｅｄｅｒｂｅｒｇＣＯＭＰＵＴＩＮＧＡＲＥＡＳＢＯＵＮＤＥＤＢＹＲＡＴＩＯＮＡＬＢＥＺＩＥＲＣＵＲＶＥＳ￥ＧｕｏｊｉｎＷａｎｇ...

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简介：n2000,theauthorscollectedagreatquantityofrelevantdatabyinvestigatingmorethan50naturereserves.BasedontheanalysisofdevelopmentandmanagementsituationoftheprotectedareasinChina,themainproblemswereputforward,suchas,nounifiedmanagementforincomeandmanagingactivities,lackofspecialguidelineandeffectivesupervision,lackofincomeandinvestment,investingfinancialdifferenceindifferentprovinces.Alltheseproblemscausedthelackoffundsforconstruction,aswellasthedamageofresourcesandenvironment.Furthermoretheconservingactivitieshavetotransmittotheprofitsinmanyprotectedareas.Combinedwiththeseproblems,theprimarysolutionprogrammersalsowereputforward.

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简介：一座大楼城市的流动上的密度的效果与RNGκ用一个CFD模型被调查-ɛ骚乱闭合计划。有不同的造的27个案例是密度参数(例如，大楼和街峡谷纵横比)数字地被模仿。当大楼的密度参数变化，不同流动政体出现。当街峡谷相对狭窄、高时，在垂直方向的二个相反旋转的旋涡被产生。沿着街的风速被大楼的长度主要影响。然而，以一座单个大楼的密度参数发现或概括街峡谷流动的特征是很困难的。这是因为复杂流动模式由于旋涡结构和旋涡数字的变化出现。平均卷的涡度大小是很好的指示物尽管有流动的强壮的相关性，在大楼的密度参数的变化上反映流动特征。平均卷的涡度大小是大楼的长度和街峡谷宽度的强壮的功能的多线性的回归表演。大楼的长度的增加减少街峡谷的涡度流动，当时，在街上，峡谷宽度增加的增加涡度。

简介：［1］Holthuijsen,L.H.,Booij,N.andHerbers,T.H.,1989.Apredictionmodelforstationary,short-crestedwavesinshallowwaterwithambientcurrents,CoastalEngineering,13,23～54.［2］Lavrenov,I.V.etal.,1998.Estimationoftheextremeheightsofwindwavesinthecoastalseaarea,Proceedings5thinternationalworkshoponwavehindcastingandforecasting,January26～30,Melbourne,FL.USA,439～450.［3］LILuping,1998.TheeffectontheseafloorerosiononwavehindcastingincoastalareasofBohaiSea,Proceedings5thinternationalworkshoponwavehindcastingandforecasting,January26～30,Melbourne,FL.USA,421～432.

简介：Duetotheuniquefunctionofprotectedareasinspeciesandnatureresourcesconservation,sustainabilityhasbecometheprimaryconsiderationinthedevelopmentofecotourisminprotectedareas.Thispaperfocusesonthisissue,andreviewsthecurrentliteraturesinthisfield,triestogiveacomprehensivereviewwhichcanalsobeorganizedinlogicalsense,classifiesthreemajorparadigmsaboutthecurrentresearch:researchonthedevelopmentofecotourisminprotectedareas,researchontheexternalindicatorswhichaffectthesustainabilityofecotourisminprotectedareas,researchesontheassessmentofsustainabilityofecotourisminprotectedareas,andfinallypointsoutthatthefurtherstudyinthisfieldmustbecarriedoutbyinter-disciplines,suchasculturaleconomicsandecologicaleconomics.

简介：因为在城市的区域的复杂变化，基于面具技术修改了CVA申请能使缩小非植被的效果变化并且在很大程度上在效率之上改善。而且，从方法收极的阴谋，有PVI的绝对尖、全部的大小的技术措施变化计算了根据线性与用3DG-S计算的least-squareestimation和GVI合适转变。最后，这应用在2002和2005与武汉的陆地卫星ETM+形象被执行，并且由错误矩阵估计了，以它能检测的方法94.91%改正的变化象素，和全部的一致系数Kappa能到达to0.85。评估结果演示趋势作为城市的植被的一种有效、有效的选择改变的这个新应用程序抽取。

简介：Internationalcooperationtoaddressclimatechangenowstandsatacrossroads.WithanewinternationalregimeforemissionsreductionestablishedbytheDurbanPlatform,"NewClimateEconomics(NCE)"hasbecomearesearchhotspot.Theneedforurgentactiontocombatclimatechangehasprompteddiscussiononreformsofeconomicgrowthpatternsandtheenergysystem.Theindustrialcivilization,therefore,nowfacesatransitiontowardsanewpathwayforecologicalsustainability.NCEexploresneweconomicconcepts,theories,andanalyticalmethodstodesignabalancedpathwayforsustainablegrowthandemissionreduction.Insteadofgettingtrappedindiscussionsonallocationofemissionreductionresponsibilitiesandobligationsamongcountries,NCEpaysmoreattentiontodevelopingwin-winmultilateralcooperationmechanismsthatfacilitatecollaborativeR&Dandknowledgesharing.Inaddition,NCEstudiesincentivesforlow-carbontransition,turningcarbonemissionreductionintoadomesticneedforcountriestoincreasetheirinternationalcompetitiveness.Toachievethe2°Ctarget,mostcountriesaroundtheworldfacechallengesofinsufficientemissionallowancestocoverexpectedemissionsassociatedwiththeirprojectedeconomicgrowth.Ascarbonemissionsrightsbecomesanincreasinglyscarceresource,increasingthecarbonproductivityoftheeconomyturnstobethecriticalpathtoaddressthedilemmaofgreenorgrowth.NCEstudiesthehistoricalevolutionofcarbonproductivityforcountriesatdifferentdevelopmentstagesaswellaswaystoenhancesuchcarbonproductivity.Thistypeofstudyprovidesinvaluablelessonsforemergingeconomiestoreachtheirownemissionpeakswithoutlosingthemomentumofgrowth.Replacingfossilfuelswithnewandrenewableenergyhasproventobeaninevitablechoiceforreshapingtheenergysystemandaddressingclimatechange-ithasalreadybecomeaglobaltrend.NCEstudiesincentivesfornewenergytechnologyinnovationanddeploymentprovidedbycarbonpricing,andshedsligh

简介：ＩＭＰＬＩＣＡＴＩＯＮＯＦＣＬＩＭＡＴＥＣＨＡＮＧＥＦＯＲＡＧＲＩＣＵＬＴＵＲＡＬＰＲＯＤＵＣＴＩＯＮＩＮＥＡＳＴＥＲＮＡＲＥＡＳＯＦＣＨＩＮＡＷａｎｇＦｕｔａｎｇ（王馥棠）ＩＭＰＬＩＣＡＴＩＯＮＯＦＣＬＩＭＡＴＥＣＨＡＮＧＥＦＯＲＡＧＲＩＣＵＬＴＵ...

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简介：Afierhavingexperiencedtwodecadesofsustainedhigh.economicqrnwthwillithppossibleforChinatoseecontinuedsustainedhigheconomicgrowthinanother10to20years?Followingtheeconomicslowdowninthepastfewyears,manyholdpessimisticviewsonthis.Inaninterviewwithacorresp...