学科分类
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53 个结果
  • 简介:GuangdongProvinceissituatedinthesouthernpartofChina,neighbouringHongkongandMacaoandfacingtheSouthChinaSea.Ithasalandareaof178,000squarekilometres.Sincethedriveofreformandopeningwaslaunched,theprovincehasuseditsgeographicalsuperiorityandrichagriculturalresourcestothefull,readjusteditsproductionstructure,reneweditsvarietiesandappliedadvancedscienceandtechnologytodevelopagriculture.Theruraleconomyhasseengreatchangesincomprehensiveeconomicresults.In1994,totalruralsocialoutputvaluewasRMB471.149billion,15.3timesthefigurefor1978;totalagriculturaloutputvaluewasRMB71.979billion.a179.5%increase;theincomeforfarmerswas

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  • 简介:Guangdong,acoastalprovinceinsouthChina,hadverypoorfoundationofindustryinthepast.AftertheestablishmentofPeople’sRepublicofChinain1949,undertheleadershipandunifiedplanningofthecentralgovernment,economyconstructionofbothindustryandagriculturehavebeenboostedandhencetheprovicialelectricpowerindustryhavedevelopedaccord-ingly.Especiallysince1979,theimplementationofreformationand

  • 标签: GUANGDONG ACCORD agriculture UNIFIED REFORMATION OWNED
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  • 简介:Objective:Toestimatethecancerincidenceandmortalityin2012inGuangdongprovincebyanalyzingthecancerdataofselectedpopulation-basedcancerregistriesinGuangdongprovincein2012.Methods:Eightofninepopulation-basedcancerregistriessubmittedcancerdatatotheGuangdongProvincialCentreforDiseaseControlandPrevention(GuangdongCDC),whosedatametthedataqualitycriteriawereincludedforanalysis.Thestatisticsofselectedregistries,stratifiedbyareas,gender,ageandcancertypes,wereusedtoestimatethecancerincidenceandmortalityin2012inGuangdongprovinceaccordingtothepopulationdatainGuangdongprovince.Segi'spopulationandthenationalcensuspopulationin2000wereusedforcalculatingtheage-standardizedrates(ASR).Results:Atotalof15,084,942people,accountedfor17.47%ofallpopulationinGuangdongprovince,werecoveredin8selectedpopulation-basedcancerregistriesin2012.Thepercentageofcasesmorphologicallyverified(MV%)andthepercentageofdeathcertificate-onlycases(DCO%)were72.84%and0.87%,respectively,andthemortality/incidence(M/I)ratiowas0.56.Itwasestimatedthattherewere211,300newcancercasesand117,300cancerdeaths.Theincidencecruderate(CR),theASRbyChinesestandardpopulation(ASRC)andbyworldstandardpopulation(ASRW),andtheaccumulatedrate(AR)(0-74years)were250.20/100,000(265.39/100,000inmales,234.29/100,000infemales),207.04/100,000,201.34/100,000and22.91%,respectively,inGuangdongprovincein2012.TheincidenceCRandASRCwere267.25/100,000and221.43/100,000inurbanareas,and215.51/100,000and178.77/100,000inruralareas,respectively.ThedeathCR,ASRC,ASRWandAR(0-74years)were148.44/100,000(190.95/100,000inmales,105.06/100,000infemales),103.73/100,000,102.44/100,000and11.68%,respectively,inGuangdongprovincein2012.ThedeathCRandASRCwere164.57/100,000and105.46/100,000inurbanareas,and124.63/100,000and99.97/100,000inruralareas,respectivel

  • 标签: 癌症发病率 广东省 死亡率 疾病预防控制中心 人口数据 质量标准
  • 简介:UsingthemethodofSingularSpectrumAnalysis(SSA),theevolutionregularityoftropicalcycloneslandinginGuangdongareanalyzed.ThemainperiodsofyearlytopicalcycloneslandinginGuangdongarefoundat8andquasi-3years,andinthewestofPearlRiverMouthare12andquasi-2yearstothewestofPearlRiverMouth.ThenorthwestPacificthattopicalcyclonesaregeneratedisdividedinto8areas,andtheSea-SurfaceTemperature(SST)ineachareaisanalyzedusingSSA.ThemainperiodsofNINO-westare8and3years,andthoseofthewarmpoolare12and2years,respectively.ThismaybethephysicalreasonforthegenerationtropicalcycloneslandinginGuangdong.BycombiningtheMaximumEntropyMethod(MEM)withSSA(SSA-MEM),theyearlyvariationtrendoftropicalcycloneslandinginGuangdongandthePearlRiverMouthareforecast,andtheresultsaregood.Themethodcanbeusedinoperationalshort-rangeclimateforecast.

  • 标签: 热带气旋 频谱分析 年变化 周期
  • 简介:OnOctober12thisyear,thecontractsoftheprocurementontheconverterstationequipmentforThreeGorges-GuangdongandGuizhou-Guangdong±500kVDCtransmissionprojects,know-howtransferandthesubcontractsonequipmentmanufacturinghasbeensigned.Theconstructionscaleofthetwoprojectsis

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  • 简介:ThecharactersoforganicmatterinrocksandoresintheFankouandDabaoshandepositsaresystematicallystudiedwithregardtotheirimplicationsformineralization.TheresultsshowthatkerogensinthisareafaaamainlyintotheplutonismfieldinVanKrevelen'sdiagram.Reflectivityoftheorganicsubstancewasmeasuredtobe3.06%(Fankou)and1.67%(Dabaoshan),correspondingtothepaleo-geotemperaturesof232℃and184℃respectively.Thesametypesofporphyrinsandhydrocarbonswererecognizedintherocksandoresandhydrocarbon-bearinginclusionsarewidespreadinquartzandcalcite,particularlyinDabaoshan,Itisthoughtthattheorgainmattermusthaveplayedacriticalroleindiagenesisandmetallizationinthesedepositsandthatthehydrothermalsolutionwasmostlikelytobethetypeofwater-oilhotbrine.

  • 标签: 有机地球化学 锌矿床 成矿作用 昆仑山 广东
  • 简介:ThepurposeofthisworkistostudythemolecularepidemiologicalcharacteristicsofnorovirusgastroenteritisoutbreaksinGuangdong.DuringOctober2003andDecember2004,fecalandanalswabsspecimenscollectedfrom13outbreaksofnon-bacterialgastroenteritisweretestedfornorovirus.SpecimensweredetectedbyRT-PCRandsequenced.Thedescriptivedatawerealsocollected.Eightin13outbreaksofgastroenteritiswerepositivefornorovirus.Allof8virusstrainswereidentifiedasgenogroupⅡbutbelongedto3genotypes.SixstrainswereGⅡ-4genotype.NorovirusisamajorcauseofoutbreaksofnonbacterialgastroenteritisinGuangdongprovinceandhasawidedistribution.Theillnesshappendedfromlateautumntowinter.TheprevalentstrainsweregenogroupⅡvirus.

  • 标签: 广东 诺罗病毒 病毒性胃肠炎 疾病爆发 分子流行病学
  • 简介:WeusedearthquakecatalogsrecordedbyGuangdongSeismologicalNetworkfrom2008to2014toresolvethespatialvariationsofb-valuesinthecoastalareaofGuangdong,particularlyinthreekeyresearchareas(Yangjiang,Heyuan,andoffshoreNanaoIsland)withstrongseismicity.Ourresultsrevealedthatb-valuesexhibitedsignificantspatialvariations,andzoneswithlowb-valuescouldindicatethemostlikelyseismogenicareaoflargeearthquakes.Weobservedthreeclearlowb-valuepatchesintheoffshoreNanaoIsland.Wefoundadistincthighb-valuepeakatthedepthof11kmandtwominimumpeaksatabout14and7–8kmintheYangjiangarea.Theoverallb-valuesgenerallydecreasewithdepthintheHeyuanarea.Thespatialvariationsofb-valuesreflecttectonicanomalies;thatis,the‘low-high-low’distributionofb-valuesintheoffshoreNanaoIslandandtheYangjiangareamayindicatetheanomalyofthecrustalstructurewithaweaklayer.Theb-valuesofreservoir-inducedseismicityareobviouslylowerthanthatinducedbytectonism.Thisfindingindicatesthatthereservoirareaisgenerallyathighstressstateundertheconditionofhighporepressure.Weinferredthatlargeearthquakesmightbepronetooccurat10–12kmdepthintheoffshoreNanaoIsland,at12–15kmdepthintheYangjiangarea,andatthelowerpartoftheseismicactivityzoneintheHeyuanarea.Moreover,theupstreamareaoftheXinfengjiangreservoiristhemostlikelyareaoffuturelargeearthquakesintheHeyuanarea.

  • 标签: B-VALUES EARTHQUAKE GUANGDONG SEISMOGENIC area STRESS
  • 简介:ThecharacteristicstructuresofthePrecambrianchertsfromtheGusuisection,Guangdong,Chi-na,includebeddedstructure,laminatedstructure,massivestructureandpseudobrecciatedstructure.ThechertischaracterizedbyconsistentlylowabundanceofTiO2,Al2O3andmosttraceelements.Howevver,itisenrichedinBa,As,Sb,HgandSe.InAl-Fe-Mnternarydiagrams,itfallsintothe'hydrothermalfield'.Correspondenceanalysisandfactoranalysisshowthatmanyelementsshowupinthefactorthatrepresentstheleachingofcountryrocksbyhydrothermalsolutions,andaretheverycharacteristicelementassociationfothegeochemicallyanomalousSouthChinabasement.Petrologicandgeochemicalevidencesuggestsahydrothermaloriginforthechert.ThechertmayhavebeenformedinaPrecambrianfiftoranextensionzonedevelopedwithintheYunkaimarginalgeosyncline,withafaultsystemlinkingittoanunknownheatsourceatdepth.

  • 标签: 前寒武纪 中国南部 层状黑硅石 多元分析 热液起源 岩石记述学
  • 简介:TheDajiangpingpyritedepositlocatedinthemiddlesectoroftheYunkaiupliftinwesternGuangdongisastratiformsulphidedepositoccurringinSinianmarineclasticandfineclasticrocks.Theformationofthedepositwasrelatedtosubmarineexhalationandhotbrinedeposition.Apartofitwasreformedbylate-stagehydrothermalsolution.Theδ34Svaluesofpyritevaryfrom-25.55‰to+21.07‰,whichareinverselyproportionaltothecontentoforganiccarboninoreandpyrite.Passingfromstripedfine-grainedpyriteoretomassivecoarse-grainedpyriteore,i.e.fromsouthtonorth,thesulphurisotopiccompositionchangesfromthelightsulphur-enrichedonetotheheavysulphur-enrichedone.Theleadisotopiccompositionofstripedoreisconsistentwiththatofthecountryrocksoforebodiesandtheleadisradiogenicleadderivedfromtheuppercrust.Theleadisotopiccompositionofmassiveoreisrelativelyhomogeneousandits206Pb/204Pb,207Pb/204Pband208Pb/204Pbratiosareabitlo

  • 标签: PYRITE DEPOSIT SULPHUR ISOTOPIC COMPOSITION lead
  • 简介:HuanengHaimenThermalPowerPlant,plannedtoinstallsix1036-MWultra-supercriticalcoal-firedgeneratingunits,isthefirstGW-classultra-supercriticalpowerplantinSouthChinapowergrid,

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  • 简介:从2002~2004的广东每日的力量负担和它到气象学的变量的连接的可变性特征与小浪分析和关联分析被分析。预言方程用优化子集回归被建立。一个线性增加趋势是很重要、季节的变化的结果表演是明显的。力量负担展出重要伪周刊(5-7天)摆动,quasi-by-weekly(10-20天)摆动和intraseasonal(30-60天)摆动。这些摆动被大气的低频率摆动和公共假期引起。广东每日的力量负担的变化显然在在星期天的减少,特别地象在中国新年期间的一个漏斗一样塑造。最小在第一和第二天被发现,力量负担逐渐地在劳动白天和国庆节的长假期期间在第三天以后增加到正常水平。广东力量负担对温度最敏感,它是主要影响因素,作为在在中国的另外的区域。力量负担也在不同季节期间与另外的气象学的元素有关系到某程度。在夏天的力量负担的最大值,最小在劳动白天和国庆节期间在中国新年和变化期间好使用优化子集回归和财务为工作日和假期的效果建立的方程适合并且预言。

  • 标签: 广东 天气预报 低频率震荡 子波分析
  • 简介:StrataofdifferentgeologicalperiodsextensivelyoutcropinwesternGuang-dongProvince,butmostgolddepositsarerestrictedtotheMiddle-LateProterozoicYunkaiGroupandtheCambrianBacunGroup,showingobviousstrata-bouncharacter-istics.GoldabundanceandtraceelementgeochemistryoftheYunkaiandBacunGroupsarecomparedwiththoseoftheOrdovicianandSilurianstrta.TheYunkaiGroupisconsideredtobethesourcestrataforgoldmineralizationintheregion.

  • 标签: 地层 云开组 广东 示踪元素 寒武纪 志留纪
  • 简介:TheMaomingBasinisoneamongstagroupofCretaceous-TertiarybasinsinSouthChina.347sampleswerecollectedfromdrillcoresMRandMBandsectionMS(110°54ˊE,21°45ˊN).MostofthelithologicalunitsareofTertiaryage.ThecoresincludetheLaohuling,Shangun,HuangniulingandYouganwoformations.TheMRcore(874minlength)hasrecordedthepolarityhistoryfromNormalZone18toNormalZone11ontheGeomagneticPolarityTimeScale(GPTS).Thestratawereformedfromabout42Mato32Ma,thatisfromLateEocenetoEarlyOligocene.Ameansedimentationrateofthisstratigraphiccolumnis8.1cm/ka.

  • 标签: 磁性地层 第三纪 广东 地质时代 白垩纪 沉积速率
  • 简介:118农业土壤和43件蔬菜样品的一个总数从Dongguan城市被收集,广东,中国。空间分发,来源,累积特征和在农业土壤和蔬菜的重金属的潜在的风险被三条不同途径在细节描绘,包括在土壤和蔬菜的八个金属元素的全部的内容,在在学习的土壤的重金属的GIS地图和multivariate分析。结果证明在农业土壤有象Cu,Zn,Ni,Pb,Cd和Hg那样的重金属的更高的累积,并且Pb的内容(65.38mgkg?2)并且Hg(0.24mgkg?2)分别地是在广东省的土壤的相应重金属的背景内容的1.82和2.82次。有在附近的3.4%Cu,5.9%Ni,1.7%Cd和28%Hg在所有从有的所有调查地点收集了土壤样品溢出为为土壤标准的中国环境质量的重金属的内容(GB15618-1995,等级II)。在土壤的多金属的污染特征被Hg主要反映。到在土壤的八个金属元素有不同来源,Cu,Zn,Ni,Cr并且这是主要源于父母材料,并且Pb,Hg和Cd被人为的活动影响。空间分发表演Cu,Zn,Ni,Cr,Pb并且农业土壤的Hg内容在西方高并且在东方,和Cd内容低在西北高,东南并且在在Dongguan的西南低。Ni的蔬菜样品的比率,Pb并且作为比最大值高的集中,在食物(GB2762-2005)的沾染物的层次分别地是4.7%,16.3%和48.8%。在蔬菜的重金属的简历集中因素(BCF)的顺序是Cd>Zn>Cu>作为>Ni>Hg>Cr>Pb。在Dongguan城市里从农业土壤和蔬菜为食物安全和人健康集中于重金属的潜在的风险是必要的,广东省。

  • 标签: 土壤重金属含量 农业土壤 地理信息系统 环境质量标准 空间分布 金属元素
  • 简介:连续大雨在2005年6月18-25日期间访问了广东省(命名大雨200506,HR200506)并且导致了庞大的经济损失。ageostropicQ向量,θ_(se),南方的循环,从NCEP分析,和TBB计算了被用来学习降雨过程。结果显示一个对流系统从华南海(SCS)向北移动了并且呆在广东几天,它是HR200506的一个直接原因。过程是华南海夏天季风的活动的结果。有在广东的HR200506的二根雨线。在生产了正面的降雨的广东的北方生的;位于生产了季风降雨的广东的南方的另外一个。

  • 标签: 夏季 季风 广东 大雨 气象分析
  • 简介:<正>OnOctober21,2003,thefirstunitofTaishanPowerPlant-thelargestcoal-firedpowerplantplannedcurrentlyinAsia,wassuccessfullyconnectedtothepowergridtogenerateelectricity.

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