简介：Derechos经常发生在欧洲和美国，而是在中国的derechos的报告是少见的。在这份报纸，雷达，卫星，和表面观察，数据被用来在2011年4月17日在华南分析一个derecho事件。对流系统与中等对流可得到的精力在环境形成了的生产derechomesoscale，大垂直的风砍，并且在中间的对流层的干燥的层，并且进行与前面和一根表面风集中线一起向南方。暴风能在雷达回响的特征和强风的原因根据差别被划分成二个阶段。一个阶段是一个supercell阶段，有塑造鞠躬的雷达回响的高降水的supercell的下沉后面的流入在导致了FujitaF0班强风。另外的阶段是一个non-supercell阶段(回响是顺序肾形的，塑造脚，并且一个平常的单个房间)，在哪个downbursts在FujitaF1班上导致了强风。这个derecho事件有许多类似，derechos在西方的国家观察了。例如，暴风对吝啬的流动垂直，强风位于鞠躬回响的鼓起的部分，并且derecho移动了与表面前面一起向南方。一些差别也被观察。摘要规模的强迫当进展不在时是弱的高振幅的midlevel马槽并且伴随强壮的表面气旋；然而，垂直的风砍是很强壮的，典型地代表与强壮的摘要规模的强迫联系的derechos的一个特征。对流可得到的势能以前被认为必要到弱强迫的原型和混合derechos的形成的对流可得到的势能和downdraft的极其高的价值；然而，这些价值多不到2000J在这个derecho事件期间。

简介：与从在1970和2001之间的热带气旋年鉴的数据，统计分析被执行学习气候的特征乍见陆地TC(作为TCshereafter注意了)在有详细规格的中国，注意集中于乍见陆地频率，地点，支撑，腐烂，转变，增强和驱散等等。结果显示在土地上的TC的支撑的时期是相当不同的为不同乍见陆地看到，并且从Guangxito浙江增加了。TC紧张的最明显的减少主要在12个小时以内发生在以后乍见陆地。TC越强壮，它越腐烂。TC是的在上区域驱散罐头嬉痞的集会Heilongjiang，极北，并且云南，最西。而且，Guangxi是有高作为与另外的沿海的区域相比驱散率和题目到TC驱散的一个区域。

简介：Dalingheornisliweii情报。etsp。nov，一只新enantiornithine鸟在东北中国从早白垩纪Yixian形成被收集。它是在中生代鸟中的一只高度专业化的异种扬抑抑格脚的第一个记录。有shorthypocleidum的塑造Y的叉突与另外的enantiornithines的不同。未成年者掌部比专业柔韧、长掌部。一条长多骨的尾巴与dromaeosaurids并且这样类似于那些的V形臂章20尾的vertebrae创作了，再加亮在鸟和非鸟的theropods之间的进化关系。保存得很好的小翼羽毛和一只异种扬抑抑格脚为Dalingheornis的树木的习惯提供充分证据。

简介：这篇文章讨论北方大西洋摆动(NAO)和诺思太平洋摆动(NPO)的interannual变化，它与在与气候被联系的中国的interdecadal气候变化的关系在1960鈥檚在北半球跳，用数据分析。两个都，NAO和NPO的振幅在1960鈥檚显然增加，这清楚地被显示出，摆动的主要时期在1960鈥檚前从3-4年改变到8鈥?在1960鈥檚以后的5年。因此，在中国的interdecadal气候变化或气候在1960鈥檚跳仔细与NAO和NPO的异例有关。关键词诺思大西洋摆动(NAO)-诺思太平洋摆动(NPO)-气候跳-Interdecadal气候变化这个工作被国家关键基本科学节目在中国(G1998040903)支持，科学的中国学院和中国(资助No.49823002)的国家自然科学Fundation。作者对为打手稿的王璇女士也感激。

简介：Sponsoredby:ChineseAcademyofSciencesNationalNaturalScienceFoundationofChinaPublishedby:ScienceinChinaPressChairman:ZHOUGuangzhao(ZhouGuangZhao)Editor-in-Chief:SUNShuExecutiveEditors:CHENYongMAZongjinOUYANGZiyuanSUJilanSUNHonglieWANGPinxianZHOUXiuii

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简介：TherearethreetypesofshalegasresourcesinChina.Theresourcesarepresentinlargeamountsandarewidelydistributed.Marinefacies,transitionalfaciesandcontinentalfaciesresourceseachaccountforathird.Basedonresourcedistributions,therearemanywellspenetratedintotheSinian,Cambrian,Ordovieian,Silurian,Devonian,CarboniferousandPermianstrataoftheYangtzeplateanditsperiphery,theNorthChinaCratonandtheTarimBasin.ManyyearsofexplorationhaveindicatedthatthemarineSilurianLongmaxishalegasiswidelydistributedinsouthChinaandhasbeenindustrializedinitsproductionintheSiehuanbasin.TheshalegasfromtheCambrianNiutitangFormationandtheSinianDoushantuoFormationareimportantdiscoveriesinYichang,HubeiandZhenba,Shanxi.TherearealsoshalegasresourcesfoundwithintransitionalfaciesandcontinentalfaciesindifferentareasinChina.The"twoelementenrichmenttheory"hasbeensummarizedduringtheexplorationprocessofSilurianmarineshalegasintheSichuanBasin.Inaddition,horizontaldrillingandfracturingtechnologiesupto3500mindepthhavebeendeveloped.BasedontheunderstandingofshalegasaccumulationinacomplextectoniczoneoutsidetheSichnanbasin,apreliminarysummaryoftheformationofthe"conversefaultsynelinecontrolreservoir"and"paleoupliftcontrolreservoir"modelhasbeenconstructed.Thedominanttheoryof"Trinity"shalegasenrichmentandthehighyieldofthe"deepwaterLuPengxiangsedimentaryfaciesbelt,structuralpreservationconditionsandoverpressure"issummarized.Guidedbytheabovetheories.AnyelwellinGuizhouandEyangyelwellinHubeiweredrilled."Fourstorey"oilandshale"gasisfoundinthePermianQixiagroup,theSilurianShiniulanFormation,theLongmaxiFormationandtheOrdovicianBaotaFormationinAnyelwell.GoodshalegashasbeengoundintheCambrianNiutitangformationinianDoushantuoformationinEyangyelwell.Thispaperaimstosummarizeandreviewthemainprogress,theoreticaltech

简介：Asproductsofurbanization,citiesarefocalpointsforsocialandeconomicinteraction.ThoughChinaisanancientcivilization,onlyrecentlyhastheurbanpopulationsurpassedthatinruralareas.Duringthelastthreedecades,unprecedentedurbanizationhasreshapedChina'sgeographical,social,economicandculturallandscapes.Amongthesocial-economictransformationshavingoccurredinChinainrecenthistory,urbanizationisprobablythemostimpressiveanddynamicprocess;ithaschangeddailylifeofChinesepopulationandprofoundlyimpactedtheregionalandglobaleconomy.

简介：ThecontinentofChinaisgroupedintoPan-Cathaysianblocks,LaurasiaandGondwanaContinentalmarginsandrelicsofthreeoceans-Paleoasian,Tethys,andPacificasawhole.Indetail,thecontinentofChinagrewupbycoalescenceofthreeblocksorplatforms(NorthChina,TarimandYangtze)andeightorogenicbelts(Altay-InnerMongolia-Daxinganling,Tianshan-Junggar-Beishan,Qinling-Qilian-Kunlun,Qiangtang-Sanjiang,Gangdise,Himalaya,Cathaysia,EasternTaiwan)duringtheprocessesofoceaniccrustdisappearanceandacceretionary-collisionofcontinentalcrusts.Intheorogenicbelts,sixconvergentcrustalconsumptionzones(Ertix-XarMoron,SouthTianshan,Kuanping-Foziling,Bangongco-Shuanghu-Nujiang-Changning-Menglian,Yarlung-Tsangpo,Jiangshao-Chenzhou-Qinfang)havebeendistinguished.Correspondingly,thestrataofthecontinentofChinaaresubdividedinto17tectonicstratasuperregions,whichtectonicallybelongtothreeblocksorplatforms,sixconvergentcrustalconsumptionzonesandeightorogenicseries,respectively.Thisdivisionisbasedmainlyondifferencesoftectonicenvironmentandtectonicevolutionamongblocks,zonesandbelts,includingthetimingofwhentheoceaniccruststransferredintocontinentalcrusts,thepaleobiogeographicfeatures,andthetypesofstrata.

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简介：TheSinoProbeCenteroftheChinaGeologicalSurveyisageosciencesinnovationcenterfordeepgeologicalsurveysanddeepprocessresearches,whichisalsothenationalbasefordeepexplorationanddeepearthscienceresearchesinChina.Thecenterismainlyfocusedondeepexplorationsoftheearth,deepgeologicalsurveysandfundamentalresearchesondeepearthscience.ThemainmissionsoftheSinoProbeCenteraretoundertakeresearchprogramsondeepearthstructuralandcompositionalexploration,technologyresearchanddevelopmentondeepearthexploration,exploitationandevaluationofdeepoilandgas,deepmineralresources,deepgeothermalenergy,andundergroundspace'explorationandutilization.

简介：<正>CENTRALCHINAARCSERIESANDITSMETALLOGENYJiangZhenya(HubeiInstituteofGeoscience,Wuhan,430022,Hubei,P.R.China)arc,metailogeny,CentralChinaThecentralChinaarcseriesliesacrossthewholecentralChina,embodyingQinghuaiarc,Esuarc,Changjiangarc,Chuzhearc,andXianggangarc.Itisagigantictecton-icarcseries.TheseriesistheresultofnorthandsouththrustingofhorizontaldiferrentialbucklingundertheuniversalnorthandsouthcompressingineasternChina.ItbeganatYingzhimovement,formedatthefirststageofYanshanmovement,andsolidifiedatthesceondstageofYanshanmovement.Theseriescontrollssedimentation,exogenicdeposits,magmatism,andendogenicdeposits.Menawhileitaffectsmordentopography,alluvialsystem,andclimate.

简介：DevelopmentofChinaDigitalSeismologicalObservationalSystemsduring1996～2000andtheCapitalCircleAreaSeismographNetworkduring1999～2001areintroduced,andthestationdistributions,instrumentsused,maintasksofNationalDigitalSeismographNetwork,RegionalDigitalSeismographNetworkandPortableDigitalSeismographNetworkareintroducedchiefly.

简介：DifferentmodelshavebeenproposedfortheformationandtectonicevolutionoftheSouthChinaSea(SCS),includingextrusionoftheIndochinaPeninsula,backarcextension,two-stageopening,proto-SCSdragging,extensioninducedbyamantleplume,andintegratedmodelsthatcombinediversefactors.Amongthese,theextrusionmodelhasgainedthemostattention.Basedonsimpli?edphysicalexperiments,thismodelproposesthatcollisionbetweentheIndianandEurasianPlatesresultedinextrusionoftheIndochinaPeninsula,whichinturnledtoopeningoftheSCS.TheextrusionoftheIndochinaPeninsula,however,shouldhaveledtopreferentialopeninginthewestsideoftheSCS,whichiscontrarytoobservations.ExtensionalmodelsproposethattheSCSwasabackarcbasin,riftedofftheSouthChinaBlock.Mostofthebackarcextensionmodels,however,arenotcompatiblewithobservationsintermsofeitherageorsubductiondirection.Thetwo-stageextensionmodelisbasedonextensionalbasinssurroundingtheSCS.Recentdatingresultsindeedshowtwo-stageopeningintheSCS,buttheSouthwestSubbasinoftheSCSismuchyounger,whichcontradictsthetwo-stageextensionmodel.Hereweproposeare?nedbackarcextensionmodel.TherewasawideNeotethysOceanbetweentheAustralianandEurasianPlatesbeforetheIndian-Eurasiancollision.Theocean?oorstartedtosubductnorthwardat*125Ma,causingbackarcextensionalongthesouthernmarginoftheEurasianPlateandtheformationoftheproto-SCS.TheNeotethyssubductionregimechangedduetoridgesubductionintheLateCretaceous,resultinginfold-belts,uplifting,erosion,andwidespreadunconformities.Itmayalsohaveledtothesubductionoftheproto-SCS.FlatsubductionoftheridgemayhavereachedfurthernorthandresultedinanotherbackarcextensionthatformedtheSCS.Therollbackofthe?atsubductingslabmighthaveoccurred*90Maago;thesecondbackarcextensionmayhaveinitiatedbetween50and45Ma.TheopeningoftheSouthwestSub

简介：鉴于食物，为食物安全负担得起能力和阀值，这篇论文为在中国估计食物安全的危险建立了一个综合索引，它在食物供应和需求之间的平衡主要是镇静的，reserv

简介：UsingaDMT(DropletMeasurementTechnologies)continuousflowstreamwisethermalgradientcloudcondensationnuclei(CCN)countermountedonaCheyenneⅢAaircraft,about20flightsforaircraftmea-surementsofCCNoverNorthChinawereconductedintheautumnof2005andspringof2006.Accordingtothedesignforaircraftobservation,themethodofspiralascentordescentinthetropospherewasusedfortheverticalmeasurementofCCN,andsomecertainlevelswerechosenforhorizontalmeasurement.TheverticaldistributionsofCCNconcentrationsshowthatmostCCNparticlesareconcentratedinthelowleveloftroposphereandCCNconcentrationdecreasedwithheightincreasing.ItsuggeststhatthemainsourceofCCNisfromthesurface.Thisresultisconsistentwithformerstudiesduring1983-1985inChinawithastaticthermalgradientCCNcounter.ThecomparisonofverticalobservationsbetweenpollutedruralareanearShijiazhuangandnon-pollutedruralareanearZhangjiakoushowsthatthereisaboutfivetimesdifferenceinCCNconcentration.Butovertwopollutedcities,ShijiazhuangandHandan,thereisnonotabledifferenceinCCNconcentration.ThehorizontalflightmeasurementsforpenetratingthecumuluscloudsexperimentshowtheapparentdecreaseofCCNinclouds.ItconfirmsthatcloudhasadefiniteconsumptiveeffectonCCNparticlesbecausesomeCCNparticlescanformclouddroplets.ThesurfacemeasurementsofCCNinShijiazhuangCityweremadeduringJune-August2005.Thesta-tisticalCCNdatashowthegreatdifferenceinconcentrationatthesamesupersaturation(S)inShijiazhuangsummertime.TheminimumCCNconcentrationswere584,808,and2431cm~(-3),andthemaximumconcen-trationswere9495,16332,and21812cm~(-3)atS=0.1%,0.3%,and0.5%,respectively.CCNhasadiurnalvariationcycle.From0600BT,theconcentrationbegantoincreaseandreachedthemaximumataboutnoon.Thenitgenerallydecreasedthroughouttheafternoon.Thereasonmaybeisrelatedtotheonsetofemissionsfromvehiculartraffi

简介：ThestatusofdeepgeophysicalexplorationandresearchinChinaissummarizedinthispaper.Newachievementsinthestudyofthevelocitystructure,seismotectonicsandgeodynamicsofthecrustanduppermantlearealsobrieflydescibed.

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