|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
长江口表层沉积物分布特征及动力响应
DOI: 10.11821/xb200701009, PP. 81-92
Keywords: 长江口,沉积物,中值粒径,潮流
Abstract:
基于长江口2003年2月采集的58个表层沉积物样品及以同步水动力资料的分析表明,表层沉积物中值粒径自江阴—口外逐渐变细,由江阴附近的217.8μm减少到南槽口外的12.1μm;浑浊带海域表层沉积物中值粒径北港最大,平均为126.2μm,北槽其次,平均为48.4μm,南槽最小,平均为14.2μm;口外海域则北槽最大,为22.4μm,北港其次,为16.5μm,南槽最小,为12.1μm。沉积物分选性大多为中等—很差,中值粒径越大,分选系数越小;沉积物偏度大多是近对称—极正偏;峭度表现为中等峭度—很窄尖。横沙以上区域表层沉积物类型以砂为主,口外海域沉积物类型以粘土质粉砂为主,浑浊带海域表层沉积物类型复杂多样。长江口主槽表层沉积物中值粒径与落潮历时、Ve/Vf值和余流值等动力参数呈正相关关系,落潮动力条件是决定长江口表层沉积物中值粒径大小的主要动力因素。
| [1] | [高抒,方国洪,于克俊等.沉积物输运对砂质海底稳定性影响的评估方法及应用实例.海洋科学集刊,2001,43:25-37.]
|
| [2] | CelsoGarcia,JonathanLaronne,MariaSala.Continuousmonitoringofbedloadfluxinamountaingravel-bedriver.Geomorphology,2000,34:23-31.
|
| [3] | DongYongfa,DingWenjun.RelationshipbetweenthegrainsizecharacteristicsandhydrodynamicsofsedimentationintheChangjiangEstuary.In:ChenJiyu,ShenHuanting,YunCaixing(eds.),ProcessesofDynamicsandGeomorphologyoftheChangjiangEstuary.Shanghai:ShanghaiScientificandTechnicalPublishers,1988.314-322.
|
| [4] | [董永发,丁文鋆.长江河口沉积物粒度特征与水动力关系.见:陈吉余,沈焕庭,恽才兴主编,长江河口动力过程和地貌演变.上海:上海科学技术出版社,1988.314-322.]
|
| [5] | [刘苍字,吴立成,华棣.长江口水下三角洲的沉积结构、构造特征及沉积作用机制.见:长江河口最大浑浊带和河口锋研究论文选集.华东师范大学学报,1995:159-164.]
|
| [6] | MengYi,LiuCangzi,ChengJiang.GeochemicalcharacteristicsofheavymetalandenvironmentevaluationofbedloadsedimentinChangjiangEstuary.MarineGeology&QuaternaryGeology,2003,23(3):37-42.
|
| [7] | JiaHailin,LiuCangzi,YangOu.DynamicsedimentenvironmentofthenorthbranchofChangjiangEstuary.JournalofEastChinaNormalUniversity(NaturalScience),2001,(1):90-96.
|
| [8] | YangOu,LiuCangzi.AnalysisonsedimenttransportpatternssedimentsourcesofnorthbranchofChangjiangEstuary.JournalofHydraulicEngineering,2002,(2):79-84.
|
| [9] | [杨欧,刘苍字.长江口北支沉积物粒径趋势及泥沙来源研究.水利学报,2002,(2):79-84.]
|
| [10] | [李九发,沈焕庭,徐海根.长江河口底沙运动规律.见:长江河口最大浑浊带和河口锋研究论文选集.华东师范大学学报,1995:62-68.]
|
| [11] | FolkRL,WardWC.BrazosRiverBar:astudyinthesignificanceofgrainsizeparameters.JournalofSedimentaryPetrology,1957,27:3-26.
|
| [12] | [王元叶.长江口近底边界层观测研究.华东师范大学硕士学位论文.2004,18.]
|
| [13] | McLarenP,BowlesD.Theeffectsofsedimenttransportationongrain-sizedistributions.JournalofSedimentPetrology,1985,55(4):457-470.
|
| [14] | GrochowskiNL,CollinsMB,BoxallSRetal.SedimenttransportpredictionsfortheEnglishChannel,usingnumericalmodels.JournaloftheGeologicalSociety(London),1993,150:683-695.
|
| [15] | ShenHuanting,PanDing'an,LiJiufaetal.TherelationshipofchannelevolutionwiththecharacteristicsofresidualcurrentsintheChangjiangEstuary.In:ChenJiyu,ShenHuanting,YunCaixing(eds.),ProcessesofDynamicsandGeomorphologyoftheChangjiangEstuary.Shanghai:ShanghaiScientificandTechnicalPublishers,1988.102-107.
|
| [16] | [沈焕庭,潘定安,李九发等.长江河口余流特性及其与河槽演变的关系.见:陈吉余主编,长江河口动力过程和地貌演变.上海:上海科学技术出版社,1988.102-107.]
|
| [17] | GaoShu,FangGuohong,YuKejunetal.Methodologyforevaluatingthestabilityofsandyseabedcontrolledbysedimentmovement,withanexampleofapplication.StudiaMarinaSinica,2001,43:25-37.
|
| [18] | HemmingaMA,CattrijsseA,WielemakeraA.Bedloadandnearbeddetritustransportinatidalsaltmarshcreek.Estuarine,CoastalandShelfScience,1996,42(1):55-62.
|
| [19] | MillimanJD,ShenHT,YangZSetal.TransportanddepositionofriversedimentintheChangjiangEstuaryandadjacentcontinentalshelf.Cont.ShelfRes.,1985,4:37-45.
|
| [20] | CarbonneauE,BergeronNE.TheeffectofbedloadtransportonmeanandturbulentflowpropertiesPatrice.Geomorphology,2000,35:267-278.
|
| [21] | LiuCangzi,WuLicheng,HuaDi.Thesedimentstructure,structuralcharacteristicsandsedimenteffectmechanismofChangjiangRiversubmergeddelta.In:SelectionsoftheStudiesoftheTurbidityMaximumandEstuarineFrontinChangjiangEstuary.JournalofEastChinaNormalUniversity,1995,159-164.
|
| [22] | [孟翊,刘苍字,程江.长江口沉积物重金属元素地球化学特征及其底质环境评价.海洋地质与第四纪地质,2003,23(3):37-42.]
|
| [23] | [贾海林,刘苍字,杨欧.长江口北支沉积动力环境分析.华东师范大学学报(自然科学版),2001,(1):90-96.]
|
| [24] | LiJiufa,ShenHuanting,XuHaigen.ThebedloadmovementintheChangjiangEstuary.In:SectionsoftheStudiesoftheTurbidityMaximumandEstuarineFrontinChangjiangEstuary.JournalofEastChinaNormalUniversity,1995:62-68.
|
| [25] | WangYuanye.TheobservationsofbottomboundarylayerinChangjiangEstuary.TheThesisoftheEastChinaNormalUniversity.2004,18.
|
| [26] | PejrupM.Thetriangulardiagramusedforclassificationofestuarinesediments:anewapproach.In:Tide-influencedSedimentaryEnvironmentsandFacies.Dordrecht.D.ReidelPublishingCompany,1987.298-300.
|
| [27] | AllenGP.RelationshipbetweengrainsizeparameterdistributionandcurrentpatternsintheGirondeEstuary(France).JournalofSedimentaryPetrology,1971,41:74-88.
|
| [28] | ShenHuanting,PanDing'an.ThecharcteristicsoftidalcurrentanditseffectsonthechanneloftheChangjiangEstuary.In:ChenJiyu,ShenHuanting,YunCaixing(eds.),ProcessesofDynamicsandGeomorphologyoftheChangjiangEstuary.Shanghai:ShanghaiScientificandTechnicalPublishers,1988.80-90.
|
| [29] | [沈焕庭,潘定安.长江河口潮流特性及其对河槽演变的影响.见:陈吉余主编,长江河口动力过程和地貌演变.上海:上海科学技术出版社,1988.80-90.]
|
| [30] | LiuHong.StudyonthecharacteristicsofsurfacesedimentdistributioninChangjiangEstuary.TheThesisoftheEastChinaNormalUniversity.2006,18.
|
| [31] | [刘红.长江口表层沉积物分布特性研究.华东师范大学硕士学位论文.2006,12-38.]
|
| [32] | JinLiu,TanZewei.Theproblemsofre-siltationinthedeepchanneloftheYangtzeEstuary.ChinaHarbourEngineering,2003,(4):1-6.
|
| [33] | [金镠,谈泽炜.长江口深水航道的回淤问题.中国港湾建设,2003,(4):1-6.]
|
| [34] | LiuCangzi.In:InvestigationReportofResourcesofShanghaiIslands.Shanghai:ShanghaiScientificandTechnicalPublishers,1996.63.
|
| [35] | [刘苍字.上海市海岛资源综合调查报告.上海:上海科学技术出版社,1996.63.]
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
