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简介：沿海的泻湖存款在仪器的记录和历史的文档以前为过去热带的气旋的大小和频率提供证据。在现在的学习，我们试图分析为北华南海区域包含台风信息的沉积记录。为这个目的，沉积核心在东南的海南岛从二个沿海的泻湖被收集，并且在实验室被分析关于谷物尺寸，器官、无机的碳内容，和免职率导出数据集合。谷物尺寸和器官无机的碳数据被用来提出台风事件的代理。免职评价，用CRS210

简介：从Lombok岛，印度尼西亚，和包围区域的paleotsunami沉积的年龄决心用210在BATAN雅加达的Pb方法。包括paleotsunami沉积，方法假定那捱过沉积的这的基本理论将导致210Pb丰富。这个方法的原则是计算210在到更深埋葬的沉积的从表面的特别沉积间隔的Pb内容累积。结果然后在以前联合起来的年里被变换成年龄或depositional时间。从GawahPudak的paleotsunami沉积的标明日期的结果(S8?？？

简介：ObjectiveUnderstandingthedynamicsofsedimentgravityflowsisofgreatimportancetocorrectlyinterprettheirrelateddeposits.Thediscoveryofsupercriticalsedimentgravityflowsprovidessomenewviewpointsfortheexplanationofcontroversialsedimentgravityflowdeposits.However,thedynamics,formation,evolutionprocessesofsupercritical

简介：China'sislandandreefcoastsaremainlydistributedalongthecoastsofZhejiangandFujianprovinces.Theseareashavefavorabledeep-waterconditionsandgreatdevelopmentpotential.TheZhoushanArchipelagoisatypicalislandandreefcoast.Inthemidstoftheislands,therearemanytidalchannelswithhighwaterdepthandhighcurrentvelocity.DaishanIslandislocatedonthenorthernpartoftheZhoushanArchipelago.TheseanorthofDaishanIslandcanbecharacterizedashavinggreatwaterdepth(generallybetween10and20m),highcurrentvelocity(themaximummeasuredvalueisabout2m/s),andhyperconcentratedsuspendedsediment(annualaverageconcentrationundernormalweatherconditionsisabout0.6kg/m3).Sedimenttransportisinfluencedbytheco-actionofwavesandcurrents.Landreclamationcaneasethecontradictionbetweenthedesirefordevelopmentandthelandresourceshortageonislandandreefcoasts.Landreclamationgenerallystartsfromdeposition-promotingprojectsonislandandreefcoastswithhyperconcentrationofsuspendedsedimentwiththeaimofreducingthereclamationcost.BasedonthemorphodynamiccharacteristicsoftheseaareanearnorthofDaishanIsland,atwo-dimensionalmathematicalmodelwasdevelopedtoanalyzetheco-actionofcurrentandwavesandthemodelwasverifiedforspringaswellasneaptidesin2007and2012.Thesimulatedvaluesoftidalstages,tidalcurrentvelocities,tidalcurrentdirections,andsuspendedsedimentconcentrationat15stationsin2007and9stationsin2012wereingoodagreementwiththein-situmeasuredvalues.Furthermore,thesimulatedmagnitudeandpatternoferosionandsedimentationagreedwellwiththeobservations.Thismodelwasusedtoevaluatetheeffectsofaproposedsiltationschemeonthehydrodynamicenvironmentandmorphologicalchangeofthestudyarea.Theresultsofthisstudycaninformtheprotection,development,andutilizationofshoal-channelsonislandandreefcoasts,aswellprovideascientific

简介：Disturbancesthatcreategapscanshapethestructureandfunctionofforests.However,suchdisturbanceregimesinAsiantropicalmontanerainforestsremainlargelyunquantified.Leaststudiedaretyphoondisturbancesthatareattributabletoclimatechange.Weinvestigatedgapcharacteristicsintermsofsize,age,andgapmakertoquantifythegapdisturbanceregimesinanintactold-growthtropicalmontanerainforestonHainanIsland,China.Theintensityoftyphoonshasincreasedsince1949,andtyphoonwindsblowmostly(45.5%)fromthenortheastcornerofHainanIsland,resultinginahigherfrequencyofgapsinthenortheast.Atotalof221gap-makers(treesthatfelltocreatecanopygaps)and53gapswereobservedina3.16haold-growthrainforest.Mostcanopygaps(85%)were\200m2.Theaveragesizeofcanopygapswassmallerintherainforestthaninothertropicalforests,whiletheaveragesizeofexpandedgapswassimilartothoseinothertropicalforests.Themaximumageofgapswas23.5yearsindicatingthatgapshadmorerapidturnoverthanotherpartsoftropicalforests.Thefrequencydistributionofgap-makersfollowedalognormaldistributionwithadistinctivepeakatthreegap-makers,whichwasdifferentfromtheinverseJ-shapedcurvetypicalofothertropicalforests.Gapswererecordedmainlyonslopesbetween20_and35_andwooddensityofgap-makerswasbetween0.6and0.7gcm-3.Ourresultssuggestthatsmall-scaledisturbancewasthedominantagentofgapformationinthisold-growthrainforestthatissubjecttoincreasingtyphoondisturbances.

简介：授课对象：八年级学生指导老师：王兰英（陕西省西安市教育科学研究所中学英语教研员）杨丽梅（陕西省西安交大阳光中学英语教研组组长）一、教学内容教学内容为人教版新目标《英语》八年级（下）Unit8HaveyoureadTreasureIslandyet？SectionA（3a—4c）。

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