简介：煤是一个基本资源，它的使用保证国民经济和人的社会的发展。因此，煤交通是瓷器全面交通系统的重要部分。在这个系统，港口是重要运输节点。这研究在中国考虑了沿海的港口并且从1973～2013分析了煤交通的进化。我们集中了于装载并且卸掉的煤的空间模式，并且总结了这些进程的主要特征和开发。然后，我们用数学模型和指示物在这些数量检验了搬运的煤和地区性的变化的体积。最后，我们分析了专业化功能和涉及煤交通揭示他们的空间关系和时间的进化的港口的空间区别。我们发现煤交通的空间模式从南方输入和北方输出改变了到所有输入和北方输出。然而，突出的港口使用了因为卸掉的煤仍然长江向南在区域被集中。装载的煤被专注于Bohai的西岸海湾。另外，在Bohai海湾附近的一些港口例如Dandong，Dalian，Yantai，和Qingdao，从装载港口到卸掉港口的传统的煤变化了。这研究进一步开发了运输地理的理论，并且改进了我们瓷器煤交通系统的理解。

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简介：TheNanlingMountains,atlatitude23.5"-25.5"N,isafamousnonfcrrousmctalzoneinChina’ItissituatedatthejuncturcofGuangdong,GuangalandHunan,runningcasttowestingencral.TlicrcarefourclcmentsformingthcNanlingMountains’Extcndingfromeasttowcst,oneisgranitcformedfromtlieIndosiniantothcYansbanianorogcny,andespecia

简介：<正>SoutheastChina,whichislocatedinthesoutheastsectionofEasternAsiaCrustobody,turnedintoDiwadevelopmentstage,i.e.,SoutheastChinaDiwaRegion,inMesozoicandCenozoiceraexperiencingthegeotectonicevolutionofpregeosyncline,geosynclineandplat-form.ThisisanimportantconcentrationregionofuraniumoredepositsinChina.Basedontheanalysesofregionalrockformationtypes,tectonicevents,magmatism,metamorphism,metallogenesis,featuresofgeophysicalandgeochemicalfieldsanddifferencesofcrustalevo-lutionandmovement,thisregioncanbeclassifiedintoseveralsecondarytectonicelements,

简介：DescribedisaninitialattempttosimulatethesuspendedsedimentdynamicsrelatingtotidalandwaveforcingduringsummertimeinJune1980andAugust1981fortheYellowandEastChinaSeascontinentalshelf.Thecohesive/non-cohesivesedimentresuspensionandmovementgeneratedbytheinteractionbetweencurrentandwavearemodeledbyuseofECOMSEDandWAMCycle4.ModelresultsarecomparedwithobservationsinUS-ChinaMarineSedimentationDynamicsProgramperformedfor1980-81atofftheChangjiangestuary.Themainfeaturesofsimulationsshowthatsuspendedsedimentconcentrationsduringthesummerdecreasedmarkedlyoffshoreasobservedduringthesimulationperiods.Asforsomediscrepanciesforthemouthoftheestuarywithhighriverdischarges,i.e.,theChangjiangRiver,themodeldidnotproperlyreproducetheover-mixingsituationinthesummer;thusdistinctverticalconcentrationvariationinthislocalregionisnotagreeablewithobservation.However,generaldispersalpatternsofsuspendedsedimentmovementseemtobeagreeablyreproducedforthenearshoreshallowregion.Someoftheproceduresofsimulationandresultsarepresentedanddiscussed.

简介：ThemainlandofChinaiscomposedoftheNorthChinaCraton,theSouthChinaCraton,theTarimCratonandotheryoungorogehiebelts.Amongstthethreecratons,theNorthChinaCratonhasbeenstudiedmostandnotedforitswidely-distributedArcheanbasementrocks.Inthispaper,weassessandcomparethegeology,rocktypes,formationageandgeochemicalcompositionfeaturesoftheArcheanbasementsofthethreecratons.Theyhavesomecommoncharacteristics,includingthefactthatthecrustalrockspriortothePaleoarcheanandthesupracrustalrocksoftheNeoareheanwerepreserved,andTonalite-Trondhjemtite-Granodiorite(TTG)magmatismandtectono-magmatismoccurredatabout2.7Gaandabout2.5Garespectively.TheTarimCratonandtheNorthChinaCratonshowmoresimilaritiesintheirearlyPrecambriancrustalevolution.SignificantfindingsontheArcheanbasementoftheNorthChinaCratonareconeludedtobe:(1)thetectonicregimeintheearlystage(>3.1Ga)isdistinctfrommodemplatetectonics;(2)thecontinentalcrustaccretionoccurredmostlyfromthelateMesoarcheantotheearlyNeoareheanperiod;(3)ahugelineartectonicbeltalreadyexistedinthelateNeoarcheanperiod,suggestingthebeginningofplatetectonics;and(4)thepreliminarycratonizationhadalreadybeencompletedbyabout2.5Ga.HadeandetritalzirconswerefoundatatotalofninelocationswithinChina.Mostofthemshowclearoscillatoryzoning,sharingsimilartextureswithmagmaticzirconsfrominterrnediate-felsicmagmaticrocks.ThisindicatesthatafairquantityofcontinentalmaterialhadalreadydevelopedonEarthatthattime.

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简介：Beforeintruding,primarymagmashaveundergoneliquationandpartialcrystallizationatdepth;asaresultthemagmasarepartitionedintobarrenmagma,ore-bearingmagma,ore-richmagmaandoremagma,whichthenascendandareinjectedintothepresentlocationsonceormultipletimes,thusformingoredeposits.Theabove-mentionedmineralizingprocessisknownasdeep-seatedmagmaticliquation-injectionmineralization.Thevolumeofthebarrenmagmaisgenerallymuchlargerthanthoseoftheore-bearingmagma,ore-richmagmaandoremagma.Intheascendingprocess,mostofthebarrenmagmaintrudesintodifferentlocationsoroutpoursontothegroundsurface,formingintrusionsorlavaflows.Therestbarrenmagma,ore-bearingmagma,ore-richmagmaandoremagmamayeithermultipletimesinjectintothesamespaceinwhichrocksandoresareformedorseparatelyinjectintodifferentspacesinwhichrocksandoresareformed.Theintrusionscontainingsuchdeep-seatedmagmaticliquation-injectiondepositshaveamuchsmallervolume,greaterorepotentialandhigheroregradethanthatofin-situmagmaticliquationdeposits.Consequentlythismineralizingprocessresultsintheformationoflargedepositsinsmallintrusions.

简介：TneglobalchangeofclimateanditsinfluenceonthecroppingsysteminChinahavebeeninvestigatedinthispaper.ItisfoundthatthetemperaturewasincreasedduringthelastdecadeandtheprecipitationdecreasedinnorthernChinaandincreasedinsouthernChinaduringthelast30years.Thesealevelhasbeenrisingbyabout21—26cminthecoastalareassouthof30°NinChinaduringthelast100years.Themostofresultsassimulatedbythegeneralcirculationmodels（GCMs）showthatthetemperatureincreasewouldamounttoabout2°—4°CinthemostpartsofChinaandprecipitationandsoilmoisturemightbedecreasedinnorthernChinaandincreasedinsourthernChinaduetodoublingofcarbondioxide（CO2）.TheeffectsofdoubledCO2ongrowthperiodandclimaticyieldcapabilityinChinahavebeenestimatedroughly.ItisshownthattheregionsofthegrowthperiodinChinawouldbemovednorthwardaboutfivedegreeslatitudeandtheclimaticyieldcapabilitymightbeincreasedbyabout10％inthemostpartsofChina.

简介：ＳＰＡＴＩＯ┐ＴＥＭＰＯＲＡＬＤＩＳＴＲＩＢＵＴＩＯＮＯＦＮｉＤＥＰＯＳＩＴＳＴｈｅＮｉｄｅｐｏｓｉｔｓｉｎＣｈｉｎａａｒｅｄｉｓｔｒｉｂｕｔｅｄｉｎＧａｎｓｕ（Ｊｉｎｃｈｕａｎ），Ｘｉｎｊｉａｎｇ（Ｋａｒａｔｕｎｇｇｕ，Ｈｕａｎｇｓｈａｎ），Ｊｉｌ...

简介：ＴＨＥＳＩＭＵＬＡＴＩＯＮＯＦＡＳＰＲＩＮＧＰＲＥＣＩＰＩＴＡＴＩＯＮＰＲＯＣＥＳＳＦＯＲＩＣＥＳＥＥＤＩＮＧＩＮＮＯＲＴＨＣＨＩＮＡＷａｎｓＸｉａｏｂｉｎ（汪晓滨），ＨｕＺｈｉｊｎ（胡志晋）ａｎｄＹｏｕＬａｉｇｕａｎｇ（游来光）（Ｉｎｓｔｉｔｕｔｅ...

简介：持续都市化是都市化，而且新型的都市化的发展方向的领域里的不仅一个重要研究话题。在这篇论文，我们构造一个索引系统与熵方法评估持续都市化潜力。结果证明大多数城市里的持续都市化的潜在的价值不高。有更高持续的都市化潜力价值的城市主要位于东北中国的中央部分。持续都市化的环境潜力是到在东北中国的持续都市化潜力的主要贡献者。在城市尺寸和潜在的价值之间没有绝对关系，大城市总是不意味着更大的潜力。关联分析证明那都市化率不能反映一个区域的持续都市化潜力。人口都市化不是持续都市化的最终的目标。单方追求都市化率不能改进持续都市化的潜力。向持续都市化，在东北中国的政府应该使新生本地经济，对农村区域给予更多的注意并且开发低碳的经济或生态的经济。最后，这份报纸强调为鉴于一个方法的缺点，测量持续都市化潜力选择更多的综合方法论或新模型的重要性。

简介：主要功能面向的zoning(MFOZ此后)是为在中国优化地区性的开发的空间模式的指南，它必要经济地理的学术领域里的理论、方法学的革新。这研究肛门

简介：1.ObjectiveThestudyareaislocatedinthenorthofJianshiarea,Hubeiprovince.Accordingtothegeologicsurvey,theSilurianblackshaleintheareaischaracterizedbyhighabundanceoforganicmatterandhighhydrocarbonpotential.From1980s,JianghanOilfieldhasdrilled7wellsinJiannangasfieldlocatedinthesouthofstudyarea,whichshoweddifferentdegreeofoilandgasandrevealedagoodexplorationprospectfortheSilurianstrata.

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简介：Torecognizethegeographicalcharacteristicsofthelandslideareaswillbehelpfulforthewatershedmanagementinthereservoirwatershed.Accordingtothequantitativeanalysis,we'lltakedifferentscoresandweightingforthepotentialparametersofthelandslideareasintheTsengwenreservoirwatershed,andinthemeanwhile,we'llextractthedifferentfactors,includingtheslope,aspect,altitude,soilandgeologicaltexturesetc.,andtheresultsshownasmaximumone-dayrainfall,ratioofforestsandaveragereliefisthemostaffectingparametersonthepotentialriskmapoflandslideareas.

简介：TheNorthChinablock,thewesternportionoftheSino-KoreanCraton,isroundedbyYanshanianinthenorthandQinling-Dabieorogenicbeltsinthesouth.Thewidespreaddevelopmentofextensionalbasinsinthisblockindicateshorizontalextensionorcontinuedthinningofapreviouselythickened,trnstablelithospherethroughouttheMesozoic.Inthispaper,weattempttosimulatenumericallythegeodynamicalprocessofthebasinformationbyusingthemountain-basinevolutionsystem.WeassumethattheformationofnumeroussedimentarybasinsintheNorthChinablockistheresultofthecrustalextension,whichdestructsrapidlythepreviouslythickenedcrust.

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简介：Overthepast25years,anannualaverageof6to7tropicalcyclones(TCs)madelandfallonChinamainlandandHainanIslandwithanaverageintensityof29.9m/satlandfallandmaintainedatleasttropicalstormintensityfor15.6hoursoverland,leadingto505deathsand37billionyuanindirecteconomicloss,whichaccountedfor0.4%oftheannualGDPofChina.Althoughtherewaslittlechangeintheoveralllandfallfrequency,intensityatlandfallandoverlandduration,theannualtotaldirecteconomiclossincreasedsignificantlyduetotherapideconomicdevelopmentoverthepast25years.Underglobalwarming,theintensityofTCsthatmadelandfallonHainandecreasedbuttheoverlanddurationandfrequencyofTCsthatmadelandfallonFujianandZhejiangincreased.Atthenationalandprovinciallevels,theratioofthedirecteconomiclosstoGDPandcasualtiescausedbylandfalltropicalcyclonesdecreased,suggestingtheeffectivenessofdisasterpreventionandreductioninChina.