学科分类
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46 个结果
  • 简介:Alongwiththeemergenceofaworldwidetrendofeconomicregionalism,theSoutheastAsiancountrieshavetakenaninitiativeinpromotingsub-regionale-conomiecooperation,notablyintheformof“growthtriangles”or“naturaleco-nomicterritories”.Asthisnewdevelopmentishelpfultoenhanceeconomiccom-plementarityandmutualbenefitamongthememberstates,itwillcertainlygiveagreatimpetustothefurtherdevelopmentoftheSoutheastAsianeconomy.

  • 标签: SOUTHEAST cooperation helpful mutual Thailand INITIATIVE
  • 简介:Theauthorshaveproposedadynamicmodelinthispaperbasedontheages,rockseriesandassociations,Sr-NdisotopicsignaturesoftheMesozoicintracontinentalmagmatismoverlyingtheCathaysianandYangtzeblocks.ThemodeldescribestherelationofintracontinentalcollisionandsubductionintheTethyantectonicregiewithPaleo-Pacificoceanicplatesudbuction-strikeslip-extensioninthePacifictectonicregime.During220-150Ma,thehorizontalcollisionbetweentheNorthChinablockandtheYangtzeblock,aswellastheintracontinentalsubductionofsomedivergentmicrocontinentalterranesinthesouthwesternpartofSouthChinaareascribedtotheinfluenceoftheTethyantectonicregime,givingrisetoavolumeofhigh-Israndlow-εNd(t)S-typegranitesonlyintheCathaysianBlock.During145-90Ma,underthegeodynamicbackgoundofsubduction-strikeslip-extensionofthePaleo-PacificoceanicplateonthebasisofthedeeptectonicprocessintheTethyantectonicregime,high-K,alkalirichcalc-alkalineandshoshoniticvolcano-plutoniccomplexesweregeneratedintheYangtzeblock,andhigh-Kcalc-alkalicandbimodalvolcano-plutoniccomplexesweregeneratedintheCathaysianblock.TheoccurrenceofA-typeperalkalinegranitesinthecoastalareasofSoutheastChinaindicatestheendofMesozoicintracontinentalmagmatism.

  • 标签: 中生代 陆内岩浆作用 地球动力学 岩石 花岗岩
  • 简介:<正>SoutheastChina,whichislocatedinthesoutheastsectionofEasternAsiaCrustobody,turnedintoDiwadevelopmentstage,i.e.,SoutheastChinaDiwaRegion,inMesozoicandCenozoiceraexperiencingthegeotectonicevolutionofpregeosyncline,geosynclineandplat-form.ThisisanimportantconcentrationregionofuraniumoredepositsinChina.Basedontheanalysesofregionalrockformationtypes,tectonicevents,magmatism,metamorphism,metallogenesis,featuresofgeophysicalandgeochemicalfieldsanddifferencesofcrustalevo-lutionandmovement,thisregioncanbeclassifiedintoseveralsecondarytectonicelements,

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  • 简介:Thepaperpresentsanoverviewoftherelationshipsbetweentheinteriorstructuresoftectonicterranesandthedistributionoftectonic-metallogeniczonesinSoutheastAsia.Episodictectonicactivitiesoccurredinthisarchipelagicarea,generatingmetallogenicbeltsinmulti-terranes.SincetheLatePaleozoic,openingandclosureofthePaleotethysandNeotethysledtomultiplesuturezonesbetweendifferentblocks,mainlybetweentheIndochinaterrane,theNambungterrane,theSibumasuterraneandtheWestMyanmarterrane.DuringtheMesozoictoCenozoic,theformationofaccretedterranesandtheirrelatedislandswascausedbysubductionandcollisionprocessesbetweenthePacificandAustralianplatestowardtheEurasianContinent,formingSundalandanditsaffiliatedislands,thePhilippinesanditssubsidiaryislands,thePapuaNewGuineaterraneanditsrelatedislandsandtheSundaepicontinentalarcsystem.Withinthemarginofterranesresultedinthestructuraltransferzones,theirsecondarytectonicunitscanbedividedintoislandarcbelts,back-arcbasins,suturezones,marginalfoldbeltsandorogenicbelts.Themetallogenicassemblagesaremainlydistributedwithinthesestructuralzonesoftheterranes.Accordingtotherelationshipbetweenthesetectonicunitsandthedistributionofmineralresources,thetectonic-metallogenicbeltscanbedividedinto24metallogenicbeltsinSoutheastAsia.Theyarecharacterizedbyadiversityandfrequencyofmetallogenicmaterialcombinationwhichislikelytoreflectthecomplexityofthematerialdistributionduringmineralizationprocesses,mostlybythestructuraltransformationduringthedissociation-convergenceprocessbetweenmultipleterranes.Therefore,theformationoforedepositswasnotonlyrestrictedbytheevolution(openingandclosure)ofPaleo-andNeotethys,butmayalsobecontrolledbytheinteractionoftheterraneswithdifferenttectonicattributeswhichprovidedmultiplesourcesofmetallogenicmaterial.

  • 标签: Southeast Asia TERRANE groups METALLOGENETIC belt
  • 简介:在河口和沿海的环境的关键担心之一是超营养作用,它被知道仔细被连接到滋养的丰富。为了控制并且改善表面水,优秀、滋养的标准被建议以便为环境提供参考条件。然而,在中国的滋养的标准的当前的数据集也为表面水或海水被设计,并且作为这,这些不对估计河口水质量合适,特别给唯一的生态系统和河口的动态性质。为了在当前的河口处理这期,浇管理,滋养的标准在中国的东南为一个本地河口被开发了。Jiulong河河口的分割,中国第一通过在2013-2014期间执行的地调查被分析,它导致了他们的不同性质在与咸度的关系描绘的三个片断的描述,水文学,生态系统,等等。从1997~2014的历史的记录然后用统计建模被分析为河口开发候选人营养素标准。分析的这个阶段从1980年代与滋养的地位记录的学习在联合被承担,它被用来建立一个基线参考条件。在片断的溶解的无机的氮(吵闹)的推荐标准价值分别地,Jiulong河河口的,II和III是64,21和14mol/L,为可溶的反应的磷(SRP)的相应价值分别地是0.89,0.76和0.89mol/L。这些价值是,这应该被强调地点依赖者,和那不同结果可以在取决于的另外的地点被完成物理并且一个河口的biogeochemical特征,或甚至在集水以内的一个单个地点。由在Jiulong河河口表明滋养的标准推导的一条可能的方法学的途径和方法,当前的学习将为研究人员提供开始在整个中国在另外的河口为滋养的条件的学习开发更完全的滋养的标准索引的某基本基础,这被希望。

  • 标签: 标准索引 河口 滋养 中国 动态性质 生态系统
  • 简介:ThebiomassandenergyproductionofCasuarinaequisetifoliaplantationsaged14werestudiedinHuianCounty,FujianProvince,SoutheastofChina.Thestandingcropbiomasswas152.60t/ha,inwhichthebiomassofbolewas67.02t/ha,accountingfor43.94%ofthetotal,whilethatofrootwas36.83t/haand24.14%,respectively.Netprimaryproductivitywas10.17t/(ha.a).Therangeofgrosscaloricofcomponentswas19.29~20.23kJ/g,withtheaverage19.70kJ/g.Thestandingcropenergywas2987×10^6kJ/ha.Netenergyproductionwas196.8×10^6kJ/ha,whilesolarenergyconversionefficiencywas0.90%.

  • 标签: 木麻黄 中国 东南沿海地区 生物量 生产力 薪炭林
  • 简介:基于可得到、增补的调查data.it在中国大陆的东南的沿海的区域上在台湾和台湾海峡分析seismicity的效果并且在地震危险预防和在台湾区域的强烈地震的频率高的历史的earthquakes.The结果表演的文本的研究讨论它的角色,影响seismicity的紧张,时间intervaI从几到几十年,而是最大值从在那里到C的沿海的区域

  • 标签: 东南沿海地区 地震活动 台湾海峡 中国内地 中国大陆地区 台湾地区
  • 简介:用先进研究WRF(ARWWRF)当模特儿并且Gridpoint统计插值(GSI)三维的变化分析(3DVAR)系统,吸收ATOVS的影响(先进初学者运作垂直更健全)通过原型社区放射的转移模型(pCRTM)的发光在预报在2005年6月20-21日在中国的东南发生在中央广东省上的重暴风雨上被评估。为这个盒子的一双比较实验(NODA和DA)与多重配置被进行,包括嵌套有4-km和12-km格子距离的领域。结果证明由通过数据吸收改变起始的条件,有偶极子的结构的一个修改分叉和潮湿领域与西南东北取向被加到雨线的轴。当一口西南的低级喷气(LLJ)带的更多的潮湿在Longmen的天文台车站附近被集成进雨线的东北部分时,,潮湿静电干扰精力(MSE)的振幅在中间的层次在底层实质地增加了,导致在在500hPa和850hPa之间的MSE扩大差别;空气变得更不稳定。因而,对流降雨在Longmen车站附近在省的东北部分增加了,它与降雨的观察分发一致。

  • 标签: 中国东南部 ATOVS 暴雨预报 资料同化 三维变分分析 辐射传输模型
  • 简介:Theleachingandredistributionofnutrientsinthesurfacelayerof4typesofredsoilsinSoutheastChinawerestudiedwithalysimeterexperimentunderfiledconditions.Resultsshowedthattheleachingconcentratedintherainyseason(fromApriltoJune).Generally,theleachingofsoilnutrientsfromthesurfacelayerofredsoilswasintheorderofCa>Mg>K>NO3-N,Infertilizationtreatment,thetotalamountofsoilnutrientsleachedoutofthesurfacelayerinaredsoilderivedfromgranitewasthehighestinallsoils.Theuptakebygrassdecreasedtheleachingoffertilizerionsinsurfacelayer,particularlyforNo3-N,SoiltotalNandexchangeableK,CaandMginthesurfacelayerdecreasedwithleachingandgrassuptakeduringthe2yearswithoutnewfertilizationofurea,Ca(H2PO4)2,KCl,CaCO3andMgCO3,Camovedfromtheapplicationlayer(0-5cm)offertilizerandaccumulatedinthe10-30cmdepthinthesoilsstudiedexceptthatdervedfromquaternaryredclay.ThedeficiencyofsoilexchangeableKwillbecomeaseriousdegradationprocessfacingtheSoutheastChina.

  • 标签: 红壤 营养成分 淋溶作用 分布规律 中国 云贵高原
  • 简介:<正>EXTENSIONOFTHECATHAYSIANDIWA-TYPEOROGENSANDCONTINENTALMARGINSPREADINGINSOUTHEASTCHINAZouHeping(DepartmentofGeology,ZhongshanUniversity,Guangzhou,510275,China)lateorogenicextension,Diwa,crustobody,continental-margin-spreading,SoutheastChina.Adynamicmechanism,"lowerlithosphericdelaminationandextensionoftheCathaysianDiwa-typeorogens",hasbeenputforwardtoexplaintheformationoftheCenozoiccontinental-margin-spreading-beltinSoutheastChina.Theprocessesofformationanddevelop-mentforthebeltarefromthestageoftheCathaysianDiwa-typeorogensatwhichcompressionandthickeningofcurstobodiesprevailed,tothestageofthebasin-and-range-typestructuresatwhichthelateorogeniccrustalextensionoccurred,andthentothestageoftheepicontinentalDiwa-typeriftsatwhichthelithosphericextensiontookplace.

  • 标签: late OROGENIC EXTENSION DIWA crustobody continental-margin-spreading
  • 简介:TheendoftheColdWarandthetransitionfromglobalbipolaritytomultipolari-tyhaveexertedanunprecedentedlyprofoundimpactonSoutheastAsiasincetheSecondWorldWar.Thesubregionisexperiencinganewtransformationwithintra-subregionalstaterelationsandtherelationshipbetweenindigenousnationsandthemajorpowersundergoinganewroundofreadjustmentandrealignment.

  • 标签: SOUTHEAST MILITARY indigenous PROFOUND defense VIETNAM
  • 简介:在云南雨季的开始以前,在在孟加拉的海湾的南方的潮湿隧道的南方的气流在省在雨季和早夏天降雨的开始在索马里人比南方的潮湿隧道起一个更重要的作用。越强壮(更弱)在海湾的南方的潮湿流动的标准化索引是,越stronger(更弱)向北方海湾潮湿愿望的交通。它通常对应于早(迟了)雨季和更多(更少)的开始在省的早夏天降雨。

  • 标签: 南亚夏季季风 南欧湿气输运 云南 多雨季节
  • 简介:在它的stratighraphy的一瞥,Taftan火山能作为三个组被分类:pre-,syn--并且volcanic以后沉积物。pre暴烈的存款主要由复理层外形和有颜色的mélange建筑群组成。syn暴烈的存款主要是主要从这座火山的主要身体由碎屑状的焦性没食子酸和熔岩流组成的Taftan火山的产品。volcanic以后存款主要是从Taftan火山的epiclastic和重做的材料由于它的侵蚀并且捱过。专业和痕量元素,和从Taftan火山在整个岩石的样品上决定的Sr/Rb同位素组成证明火山在大陆人边缘被形成。Taftan火山的整个岩石的同位素组成与87Sr/86Sr=0.7053260.705921。Taftan火山的Geochronological样品由40K/40Ar方法把6.95±0.72的一个年龄范围给了0.71±0.03妈。稀土元素的元素模式被高LREE和将近强烈线性的模式为MREE描绘到HREE,建议象橄榄石和辉石那样的特殊矿物质在早magmatic阶段结晶然后涉及在下地壳和残余岩浆之间的反应。在Taftan火山下面的综合同位素和痕量元素分类学和构造结构由主要岩浆建议了降低外壳的吸收。主要岩浆从异构的披风来源和一个第二等的petrogenetical过程产生了。这岩浆能被阿曼海的俯冲在大陆人欧亚大陆板下面影响了。

  • 标签: 地球化学 地质 火山 年代学 同化作用
  • 简介:Aftercxperiencingaseriesofgeoteetonicdevelopmentstagesofpregeosyncline,geosynclineandplatformctc’,thisarcaturncdintoadiwarcgioninMcsozoicandCenozoicera-ItmaybedividedintotwogcodomesyStemsofJiangnan,GanyUeandthrcegeodepressionsyStcmsofXianggui,QianguiMinchcandfourcorrespondinguraniummcta1logenicbelts

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  • 简介:SoutheastChinaisoneoftheseveresoildegradationareasinChina.Thispapertheoreticallyexaminestheimpactofsomeimportantinstitutionalarrangementsandpolicies,likelandmanagementpattern,theruraloff-farmemployment,landpropertychangeandchangesinpricesofagriculturalproducts,onsoildegradationinthisarea.Itfurtherconductssomecasestudiestoconfirmthepotentialrelationshipbetweentheinstitutions&policiesandsoildegradation,applyingthesurveyedandthesecondhanddata.Thepaperatlastmakessomeconclusionsandproposessomesuggestionsonhowtopromotesoilconservationbyimprovingthewaysofpolicydecision-makingandtheeffectsofpoliciesonlanduse.

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  • 简介:ToinvestigategeneticdiversitiesamongtheAAgenomeOryzaspeciesintheSoutheastandSouthAsia,atotalof428accessionsoftheAAgenomeOryzaspeciesweregenotypedusing36simplesequencerepeats(SSR)markersdistributedthroughoutthericegenome.Allofthe36SSRmarkersgeneratedpolymorphicbands,revealing100%polymorphism.Thenumberofallelesperlocusrangedfrom3to17withthemeanof8.6.TheNei’sgeneticdiversityindex(He)rangedfrom0.337atRM455to0.865atRM169withanaveragevalueof0.650.ThegeneticdiversityoftheAAgenomeOryzaspeciesintheSoutheastAsiawasobviouslyhigherthanthatintheSouthAsia.AmongthedetectedOryzaspeciesintheSouthandSoutheastAsia,O.rufipogonshowedthehighestgeneticdiversity.Meanwhile,ahighergeneticdifferentiation(Fst)wasfoundamongthedetectedOryzaspeciesintheSoutheastAsiathanintheSouthAsia.TheFstvaluebetweenO.nivaraandO.sativawasthehighest.Theresultsfromthenumberofspecificalleles,specificloci,andallelefrequencyconfirmedthegreatergeneticvariationamongthedetectedspecies.Inaddition,thespecificalleleinRM161displayedhigherfrequency(0.193),suggestingitsimportantfunctioninidentifyingOryzaspeciesofAAgenome.

  • 标签: GENOME ORYZA SPECIES simple sequence REPEAT