简介:AccordingtostatisticsconductedbytheEnvironmentBureauofT.A.R,Tibethasestablished7differentconservationareasatnationallevel,8atprovinciallevel,and23atsub-provinciallevel.Thetotalconservationareareachesto407,000sqkm,ThisnumberaccountsforonethirdoftA.R,andranksnumberoneinChina.
简介:Thevulnerableeco-areaisoneoftheimportantresearchtargetsinthefieldofsustainabledevelopment.Itistherequirementofbuildingawell-offsocietyinanall-roundwaythatweshouldstudymoreonthevulnerableeco-areas,dealwiththerelationshipbetweenenvironmentalprotectionandeconomicdevelopment,speeduptheeconomicdevelopmentintheseareasandincreasethelivingstandardofthelocalpeople.Thispaperputsforwardthecountermeasuresofenvironment---economycoordination,onthebasisoftherecognitionofeco-environmentfeaturesandsocialeconomicconditionsinthevulnerableeco-areasofChina,inviewoftheprogressinsustainabledevelopmentstudiesofthevulnerableones,takingthetransitionalareasoffarmingandpasturinginnortheastChinaasanexampletostudytheregionalenvironmentvulnerability.
简介:Theinstalledcapacityofhydropowerstationsrisesrapidly,andinthewholecountry800countiesaremainlydependingontheelectricpowerfromsmallhydropowerstationsandtheirpowergrids.Bytheendof2000,theinstalledcapacityofhydropowerfromthewaterresourcesadministrativebodieshadamountedto31.1GW,andtheannualgenerationreached94.5billionkWh.
简介:山谷经济是在被山谷开发的各种各样的人物定义的多山的区域开发的一个新模式,并且是区分为多山的区域开发的节俭的地理模式。在在山谷的不同多山的元素的分发的特殊空间联合关系是为山发展研究的新题目,并且如此的研究为研究和惯例两个都是有意义的。把简短探索基于关于多山的区域开发和追随者的长期的研究进涵义和山谷经济的空间组织进程,作者在北京多山的区域分析了山谷经济的开发的现在的状况,在北京多山的区域学习了特征和山谷经济的空间结构的变化的影响,并且最后建议了山谷经济的空间结构的合理安排山谷经济在新时代在北京多山的区域在发展和功能的转变起一个重要作用,这在这研究被考虑。第一,山谷经济没被行政边界构画出,并且它沿着主要交通线粗略地在多山的区域连接大多数村庄。因此,山谷经济能在多山的区域对发展施加积极影响,至少在象在多山的区域和农村、城市的区域的协调发展的工业结构的重新整理那样的方面。另外,在北京多山的区域的山谷经济在第二等的集中的一个空间组织阶段被发展,这被发现,它被节省资源的、生态的保护和工业优化描绘。因此,山谷经济的发展将在多山的区域对在生态的保护和经济开发之间的协作有用,并且将支持多山的区域的综合发展。在北京多山的区域的山谷经济的发展中的模式将在北京多山的区域的功能的角色的转变为决策提供基础,并且在另一方面,将在北京外面在多山的区域为研究介绍经验。
简介:-Acombinednumericalmodelforcomputingmixingareasofpollutionverticaljetdischargingintotidalflowshasbeendeveloped.Thisnumericalmodeliscomposedofa2-Ddepth-averageddynamicfar-fieldnumericalmodelanda2-Dverticaldynamicnear-fieldnumericalmodel.Theformerusesfinitenodemethodtocomputevelocity,andimprovedfinitenodemethodtocomputepollutantconcentrationdistribution;thelatterisak-eturbulencemodel,andusesSIMPLE(Semi-ImplicitMethodforPressureLinkedEquations)methodtocomputevelocity.Atthesametime,theformerprovidesboundaryconditionsforthelatter.Thismodelcansimulatebothfar-fieldpollutantconcentrationdistributionandnear-fieldverticalrecirculationquicklyandprecisely.ThismodelhasbeenverifiedbymeasureddataofpollutantFoftheDachangreachoftheChangjingRiverandtestdatapresentedbyChenelal.(1992).Onthebasisofverification,theauthorsuseadesignedhydrographtocomputethismixingareaforacer
简介:BasedonanalysesofsurfaceandcoresedimentsinthetidalflatsoftheYangtzeEstuaryandcoastalareas,thepresentstudyrevealsphosphorousformsexistinginsedimentsandtheirdistributions.Theresultsshowthatphosphorusintidalflatsedimentsinthestudyareamainlyconsistsofinorganicphosphorousforms,involvingDP,Fe-P,Al-P,andCa-Pandorganicphosphorousforms,inwhichCa-PandOParedominantcompositions.Thisfindingindicatesthatspatialdistributionsofvariousphosphorousformsarerelatedtosedimentaryenvironmentsinwaterandgrainsizesofsediments,andareinfluencedbysewagedischargesandeffluentsfromaquacultivationinthecoastalareas.
简介:IntheareasofViminaciumandNaisfourrareandunusualvotivededicationswereidentified.ThesearethededicationsDeusAeternus,DiiAngeli,Hero(Viminacium),andAtta(Naissus).ThededicationsDeusAeternusandDiiAngelimayperhapsindicateChristianity,whilethededicationsHeroandAttamayindicatesettlersofGreekorigin.ThededicationtogoddessAttacouldhavebeenmadebyafreedman,sincehercultwastoanextentrelatedtothecultofHeracleswho,thankstohisloyalservicetoOmphale,wherehewastorepenthissins,wasfreedfromslavery,andthuswasalsoaprotectoroffreedman.Mainmethodologicalapproachinthispaperistheanalysisofcultsaswellastheirbackgroundsasconditionsfortheirrealisation.UntilnowfortheterritoryofSerbiatherewasnotcorpusofanalyzingcults.ThereisonlycorpusofgraveandvotivemonumentsfortheterritoryofSerbiawithveryrareandsporadiccommentsofcult.So,themaintopicofthisarticleisanalyzingofcults.Itincludesthemainmeaningofthecult,dateingofmonumentsandhistoricalandarcheologicalbackgroundsofthecults.Atthesametimeitwasthemainmethodintheanalyzingofthementionedvotivemonuments.BythismethodastheresultappearedthedateingofthemonumentsandimprovementofexistingGreeksettlers.Atthesametimetherewerethemainresearchquestionswhichshouldbeensolved.ForensolvedthedateingofthemonumentswasusedthesystemofanalyzingsyllabicformulaeandfortheimprovementofexistingGreeksettlersthemethodof“healtymind”andconnectionsofanalogies.AsaresultthedateingofmonumentsofDeusAeternus,DiiAngeli,andHerowasearly2-ndcentury,andforAttafromthebeginningof2-ndtotheendof3-rdcentury.
简介:IntheprocessofChina’srapidindustrializationandurbanization,duetolaboroutflow,alargenumberofchildrenwereleftbehindinruralarea.BeingLongseparatedfromtheirparents,someofthesechildrensufferfrompsychologicalproblemsorevenshowextremebehaviors.Theyaremorevulnerabletoaccidentsorevenunlawfulinfringements.Theseproblemshaveseriouslyaffectedtheir
简介:Onthebasisofstereoimageanalysis,thechangedetectionofman-madeobjectsinurbanareasisintroduced.Informationoftheheightofman-madeobjectscanbeappliedtoreinforcetheirchangedetection.BycomparisonbetweenthenewandoldDSMs,thechangedregionsareextracted.However,ouraimistodetectchangesofman-madeobjectsinurbanareaandfurtherinthepotentialareasbythemeansofline-featurematchingandgradientdirectionhistogram.TheexperimentsbasedontheaerialimagesfromJapanhaveproventhatthealgorithmiscorrectandefficient.
简介:Buildingaforestcityrequiressufficientareaofurbanforestsandanexpeditewatercirculatingsystem.TakingShanghaiasanexample,itisproposedthatChinashoulddevelopitsurbanforestrythroughnetworkingofforestsandwaterareasduetohighdensityofpopulation,limitedlandresourcesandpoorwatercirculatingsystem.InordertodevelopaconceptionofurbanforestwithChinesecharacteristics,thispaperelaboratesimplications,foundation,evolutionanddevelopmentofthenewconceptionthroughcomparativestudiesofurbanforestdevelopmentinsideandoutsideChina.
简介:<正>TheFifthComputerFestivalonZhujiangRoad,XuanwuDistrict,NanjingCityandtheGoldenAutumnFairofTrade&InvestmentheldinSeptemberthisyearattracted200well-knowncompanies,allofwhichareintendingtoinvestinNanjing.Followingtheprincipleof"Givingprominencetopreponderantprojectsmarkedoutbythedistrictaswellasmaintainingwholesomeplanningofthecity",XuanwuDistrictputforward28itemsatthefair,coveringthe