简介：把Niya节的地质的记录基于多索引的合成研究，它具有在Tarim盆的南部的边缘的高分辨率，和在南部的Xinjiang的另外的地质的记录，这篇论文重建了自从大约4.00kaBP，paleoclimatic的历史在这个区域变化。在最后4.00ka期间，南部的Xinjiang的区域经历了相对寒冷湿、相对的温暖干燥的时期的引申。三个显著寒冷湿的时期(4.00-3.45kaBP，2.50-1.90kaBP，ca。1.40?1.00kaBP)并且三个温暖干燥的时期(3.45-2.50kaBP，1.90-1.40kaBP，1.00kaBP礼品)被识别。人的活动在南部的Xinjiang与古气候的进化有一种亲密关系，这被显示出。

简介：ＳｅｉｓｍｉｃａｎｉｓｏｔｒｏｐｙｂｅｎｅａｔｈＳｏｕｔｈｅｒｎＴｉｂｅｔＱＩＮＧ－ＴＩＡＮＬＵＩ（吕庆田），ＫＡＩ－ＹＩＭＡ（马开义），ＭＥＩＪＩＡＮＧ＇（姜枚），Ａ．ＨｉｒｎａｎｄＡ．Ｎｅｒｃｅｓｓｉａｎ（ＩｎｓｔｉｔｕｔｅｏｆＭｉｎｅｒａｌＤｅ...

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简介：Sedimentaryfaciesisanimportantfactorinfluencingshalegasaccumulation.Itnotonlycontrollshydrocarbongeneration,butalsoaffectsreservoircharacteristicsanddistribution.ThispaperdiscussestheLowerSilurianLongmaxiFormationinthesouthoftheSichuanBasin.Outcrop,core,drillingandloggingdataidentifythesedimentaryfaciesoftheformationascontinentalshelffacies,whichisdividedintotwosubfacies:aninnershelfandanoutershelfsubfacies.Thesetwosubfaciescanbefurtherdividedintosevenmicrofacies:muddysiltyshallowshelf,calcareoussiltyshallowshelf,muddylimyshallowshelf,stormflow,muddydeepshelf,siltymuddydeepshelfandcontourcurrentmicrofacies.Verticalandhorizontaldistributionofmicrofaciesestablishesasedimentationmodelofthecontinentalshelffacies.Combinedwithanalizationorcalculationofgeochemical,mineralogical,physicalandgas-bearingpropertiesofsamples,sedimentarymicrofaciesisevaluatedusingnineparameters:totalorganiccarboncontent,effectiveshalecontinuousthickness,vitrinitereflectance,kerogentype,mineralcomponents,porosity,permeability,watersaturationandgascontent.Theevaluationrevealedthatthemostfavorablefaciesforshalegasexplorationanddevelopmentarethemuddydeepshelfandpartofthesiltymuddydeepshelfmicrofacies,withTOCmorethan2%,siliceouscomponentover50%,claylessthan30%,porositymorethan3%,watersaturationlowerthan40%,gascontentgreaterthan2m3/t.Theseresultsprovideatheoreticalbasisfordeciston-makingonthemostpromisingareasforshalegasexplorationintheSichuanBasinandformarineshalegasexplorationanddevelopmentinSouthChina.

简介：使用每月的风和海面温度(SST)数据，在印度洋与印度洋偶极子模式(IOD)事件联系的南部的南方的大气循环房间第一次被描述并且检验。分叉的风和压力vertical速度为大气循环房间的鉴定被采用。在积极IOD事件的四个不同阶段期间，在西方的印度洋上的异常南方的哈德利发行量证明空气在更低的对流层在热带，在上面的对流层的流动杆病房，在画热带的水池，和回来升起回到热带。在东方印度洋上的塞诺马劳斯·哈德利循环在西方的印度洋上对那相反。在积极IOD事件期间，当它在西方的印度洋上被加强时，在东方IndianOcean上的南方的哈德利发行量被削弱。在IOD索引和哈德利房间的索引之间的相关分析也证明那，大气循环模式在在记录的时期上的每个IOD事件是明显的。

简介：InSeptember2002,"OrganizingofNationalRareEarthEnterprisesGroup"whichwasdeliveredbyoriginalNationalEconomy&TradeCommitteeandoriginalNationalPlanningCommittee,MinistryofFinanceP.R.C,MinistryofLand&ResourceP.R.C.andMinistryofForeignEconomy&Trade,wasapprovedbytheStateCouncilofP.R.C.toorganizeSouthernandNorthernRareEarthGroups.OnOctober30,2002,ChinaNorthernREGroupCo.,LtdPreparationTeamheldthefoundationconventioninBaotou,whichdrewthecurtainof...

简介：THEyear2006seesthelaunchoftheChinesegovernment'scampaignto'buildanewsocialistcountryside.'Aftermorethan20yearsofreformandopening-up,thefocusisnowonChina'shugeruralpopulation.The

简介：TheanalysisoftherelationshipbetweenseaiceinArcticandAntarctic,andtheSouthernOscillationIndex(SOI)variationonthetemporalscaleofmonth,seasonandyearismadeinthispaper.ThenegativecorrelationbetweenseaiceinArcticandtheSOI.andthepositivecorrelationbetweenseaiceinAntarcticandtheSOIarefound.ThevariationofseaiceinAntarcticPacificseemstoplayanimportantroleintheinfluencetoatmosphere.Theirnonlinearrelationshipspresentmorestronglythanthelinearrelationshipbetweenthem.TherelationshipbetweenseaiceinArcticandAntarcticandtheSOIintheearlystageisinvestigated.Theirvariationshowsperiodicphenomena.ThemaximumcorrelationisusedtobuildthemodelforforecastingthevariationoftheSOIontheconditionoftheseaiceinArcticandAntarctic.Theexplainedvarianceofthesimulatedseriesisgreaterthan0.90.Thereexistsa17-monthperiodintherelationshipbetweenseaiceinArcticandAntarcticandSOI.Theexistingofthecommonfactorwithlargerscaleisdiscussedinthispaper.

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简介：AbstractObjective:To summarize the main updated evidence about the health effects of air pollution, with a special focus on Southern Europe.Data sources:Literature was obtained through PubMed Central and the official websites of European Agencies and Scientific Societies.Study selection:Recent shreds of evidence about the health effects of air pollution coming from international reports and original research were collected and described in this review.Results:Air pollution is an avoidable risk factor that causes a huge burden for society, in terms of death, health disorders, and huge socio-economic costs. The southern European countries face a more threatening problem because they experience the effects of both anthropogenic pollutants and natural dusts (particulate matter [PM]). The European Environment Agency reported the number of premature deaths in the 28 countries of the European Union attributable to air pollutant exposure in the year 2016: 374,000 for PM2.5, 68,000 for nitrogen dioxide, and 14,000 for ozone. In Italy, time series and analytical epidemiological studies showed increased cardiorespiratory hospital admissions and mortality, as well as increased risk of respiratory diseases in people living in urban areas.Conclusions:Based on abundant evidence, the World Health Organization, which hosts the Global Alliance against Chronic Respiratory Diseases (GARD), the scientific respiratory societies, and the patients’ associations, as well as others in the health sector, must increase their engagement in advocacy for clean air policies.

简介：基于在在中国，关于为在中央南部的湖南省设计地点的地震安全评价的最近的研究，中等地震的新变细关系和自从1970，seismicity数据由现代仪器的地震记录获得了的背景编地震地面运动参数的带状配列地图使用的基本数据，中央南部的湖南省的地震带状配列的新结果被提供。有针网阵列=0.05g的区域显然与以前的那个相比在新地图增加了并且与在最近的years.This结果发生在湖南的中央南部的部分的中等地震的地震灾难特征相对一致的结果表演将有益于研究和编译一新产生在中等地震的地震地面运动参数和地震危险评价的地震带状配列地图活跃区域在中央一

简介：FieldstudieswereconductedintheJiuwantanForestFarm,HuaduDistrictofGuangzhouCityfromJune2004toMarch2006toevaluatetheeffectsofplantingspacings(0.5m×0.5m,0.5m×1.0mand1.0m×1.0m)anddifferentfertilizers(bio-fermentedmanure,NPKcompoundfertilizerandNPKmixedfertilizer)onthegrowthofDaemonoropsmargaritaegrownunderirrigationandfull-lightconditionsforedibleshootsproduction.Theeffectsofapplicationofdifferentfertilizersonthemeanheight,lengthofstem...

简介：Thewintersof1997/1998and1998/1999,correspondingtoElNi(?)oandLaNi(?)aepisodes,respectively,weretwotypicalrain-abundantand-scarceseasonsforthesouthernChina.Inordertounderstandthecauseoftheanomalousprecipitationduringthetwowinters,acomparativeanalysistechniquehasbeenemployedtoinvestigatethedifferencesingeneralcirculationandmoisturetransportationbetweenthetwoseasons.Theresultsshowthattheabundantrainfallduringthewinterof1997/1998wasassociatedwiththeENSOwarmepisodeevent,eastwardshiftedweakwesterlytrough/ridge,weakenedEastAsianwintermonsoon(EAWM),strengthenedsubtropicalhigh,andpresentedtwoanti-cycloniccirculationsoverHokkaidoandthePhilippineSea,respectively,aswellasonecycloniccirculationovertheYangtzeRiverBasinintheanomalouswindfieldsofthelowertroposphere.Duringtherain-scarcewinter,however,thepatternsofequatorialseasurfacetemperatureanomaliesandthecirculationsystemsbothinupperandlowerlevelswerenearlytheoppositeofthoseduringtherain-abundantwinter.IthasalsobeendiscoveredthatthewatervaporoversouthernChinaduringthewinterscamemainlyfromthesouthwesterlyflowaheadoftroughsinthesouthernbranchofwesterliesandtheturningflowovertheSouthChinaSea-Indo-ChinaPeninsulaarea;andthemoisturetransportationchannelsvariedsignificantlywithregardtoheight.Theintensifiedflowinthesouthernbranchofwesterliesandtheanti-cycloniccirculationanomalyoverthePhilippineSeaduringthewinterof1997/1998werefavorableformoisturetransportationtomainlandChina,howeverthetwomoisturetransportationstreamsweredramaticallyweakenedduringthewinterof1998/1999duetoweakwesterlyflowandthedominanceofacoldhighsysteminthelowerleveloverthesoutheastcoastofChina.Suchasignificantinter-annualchangeofmoisturetransportationisakeyfactorresultingintheobviousdifferenceinprecipitationbetweenthetwowinters.

简介：InApril2005,theSouthernPowerGridCo.,Ltd.entrustedChinaPowerEngineeringConsultingGroupCorporationwithanevaluationofafeasibilitystudyreport(partofsystemtransmissionscheme)onthefirstUHVprogram-Yun-GuangDCtransmissionproject.Itsvoltageclassandtransmissioncapacityaretobe+_800kVand5000MWrespectively.ItsstartingpointwillbeinthenorthwestofKunmingandconvertersubstationwillbeinZengdongDistrictofGuangzhou.Evaluationexpertsheldthat,1)YunnanisrichinenergyresourcesavailabletobuildenergybasesandGuangdonghasalargemarketspacetoreceiveelectricityfromYunnan;2)the+800-kVDCtransmissiontechniqueiseconomicallyfeasible;

简介：Ironoxidesfrom33samplesof25soilsderivedfromvariousparentmaterialsinthesouthernChinawerestudiedusingNaOHselectivedissolutiontechniqueandX-raydiffraction(XRD).GoethitandhematiteweretheonlytwocrystallineFeoxidesocurringinasignificantquantity,Thegoethite/(goethite+hematite)ratiosrangedfrom0to1,beingthehighestinyellowsoil,someyellow-redsoilsandsaprolitesamplesandthelowestinsoilsderivedfrompurplesandstonewhereonlyhematitewaspresent.Alsubstituioningoethiterangedfrom6.6to29.9mol%withameanvalueof16.7mol%,whilesubstitutionofAlinhematiterangedfrom0to12.1mol%,ThevaluesofAlsubsitutionofhematiteincoexistinggoethiteandhematitewerecloselyrelatedwithcorrespondingvaluesofgoetheite(r=0.7292,P<0.01,n=27),Therednessratingofsoilsincreasedlinearlywithincrasingamountofhematite(r=0.8109,P<0.01),Itwassuggestedthatrenessratngcouldbeusedtocrudelyestimatehematitecontentsofsoils.

简介：<正>ONSOUTHERNSTRETCHOPTHES-NTECTONICBELT,CHINAChenGuanghaoandWeiZhoulin(ChangshaInstituteofGeotectonic,AcademiaSinica,Changsha,410013,Hunan,China)S-Ntectonicbelt,southstretching,boundingbeltItcanbeinferredfromthegeophysicaldata,linearstructures,tectonicevolu-tionhistoryandmetallogenythattheS-NtectonicBeltstretchesfurthersouthinadifferentdi-rectionandmannerafterinterceptedbytheRedRiverFault,Thestretchingsegmentistheim-portanttectonicboundaryinIndo-AsiaandassiminlatestheS-Ntectonicbeltwithsomediffer-ences.

简介：Thispaperfocusesonhowtobuildthemodelofprecisionfirehazarddivisionsinthelevelofforestresourcessub-compartment.Basedon3DGIStechnologyandcharacteristicsofforestfiresincollectiveforestofsouthernChina,thisstudyutilizedLin’anCity,ZhejiangProvinceastheexperimentalarea.Forestfirefactorsweredividedinto11indexesfromthethreecategories(socialandeconomicfactors,forestrycharacteristics,andmeteorologicalcharacteristics)andweightedforanalysis.Next,threeeigenvectors(oneforeachcategory)werecreatedtobuildanonlinearmathematicalmodelcalledprecisionfirehazarddivisionsforforests.Then,themodelwasusedtooptimizeandtestforestfirehazarddivisionswiththeleastsquares.Resultsshowedthatexperimentalandtheoreticalvaluesoferrorwerelessthan0.1.Thus,intheexperimentalareathismodelandthefireoccurrencehistorymatched.

简介：<正>TheDevonianhydrotyermalsedimentationandmineralizationarewidespreadandtypicalinMaizi、KelangandChonghuerbasinsofsouthernAltaymargin,andhavetheirrespectivesignsinoccurrence,fabricandgeochemistry.Hydr)thermalsedimentaryrocksmainlyoccurintheintermittentperiodbetweenvolcanicsub(?)ycles.Theyarethin-midium-bedded,lenticularandbasicallyuniformtotheoccurrencesoftheoverlyingandunderlyingstrata.Theclassificationofthehydrothermalsedimentaryrocksisproposedbasedonthemineralcompositions.Thedetaileddescriptionsaregiventothefivetypesofhydrothermalsedimentaryrocks:silicates,feldspar-richrocks,

简介：生物技术的最新进展给蚕、蜜蜂和其他重要经济昆虫的遗传操作提供许多方法,特别是DNA直接转化为研究这些昆虫提供一个有希望的方法。尽管转化蚕和蜜蜂的尝试已有若干报道(Miline等,1986;田村等,1990),但要发展DNA导