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简介：TheappleindustryinShaanxiProvinceisaresource-basedindustry;comparedtothebestproductiveregionsathomeandabroad,itisadvantageousinhighqualityaswellasgeographicalandnaturalresources.Currently,bigchangeshaveoccurredintheapplemarketsupply-demandrelations;long-termandcomprehensiveshortagehaspassed;thebuyer’smarkethascomeintobeing;competitionsinthedomesticmarketarefierce.Atthesametime,theforeignapplewillimpactonthedomesticmarket,increasingcompetitivepressure.Foreignanti-dumpingmeasures,greenbarriersandtechnologiesrestricttheexportationofthedomesticapple.Basedonsuccessfulexperienceofotherindustrialclusters,thispaperanalyzestheexistingproblemsinthedevelopmentofShaanxiappleindustrialcluster,combiningempiricalanalysis,qualitativeanalysisandquantitativeanalysis,proposesspecificpolicyrecommendationsandgettheconclusions.First,thecharacteristicsoftheagriculturalindustrialclusterareanalyzed;Shaanxiappleindustryischaracterizedbycluster.Second,therapiddevelopmentofShaanxiappleindustrialclusterexposessomeproblems.Third,weneedthegovernmenttocontrolthedisorderlycompetitionofShaanxiappleindustry.

简介：在它的stratighraphy的一瞥，Taftan火山能作为三个组被分类：pre-，syn--并且volcanic以后沉积物。pre暴烈的存款主要由复理层外形和有颜色的mélange建筑群组成。syn暴烈的存款主要是主要从这座火山的主要身体由碎屑状的焦性没食子酸和熔岩流组成的Taftan火山的产品。volcanic以后存款主要是从Taftan火山的epiclastic和重做的材料由于它的侵蚀并且捱过。专业和痕量元素，和从Taftan火山在整个岩石的样品上决定的Sr/Rb同位素组成证明火山在大陆人边缘被形成。Taftan火山的整个岩石的同位素组成与87Sr/86Sr=0.7053260.705921。Taftan火山的Geochronological样品由40K/40Ar方法把6.95±0.72的一个年龄范围给了0.71±0.03妈。稀土元素的元素模式被高LREE和将近强烈线性的模式为MREE描绘到HREE，建议象橄榄石和辉石那样的特殊矿物质在早magmatic阶段结晶然后涉及在下地壳和残余岩浆之间的反应。在Taftan火山下面的综合同位素和痕量元素分类学和构造结构由主要岩浆建议了降低外壳的吸收。主要岩浆从异构的披风来源和一个第二等的petrogenetical过程产生了。这岩浆能被阿曼海的俯冲在大陆人欧亚大陆板下面影响了。

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简介：SeveralearthquakeswithMs≥5.0occurredintheDatongseismicregionin1989,1991and1999,TheprecisefocuslocationoftheearthquakesequencewasmadebytherecordsoftheremotesensingseismicstationnetworkinDatong.Usingthatdatatogetherwithmacro-intensitydistributionandfocalmechanismsolutions,weanalyzethedifferenceamongthreesubsequences.Theresultsshowthatthefocalfaultofthe1999Ms5.6earthquakewasaNWW-trendingleft-lateralstrike-slipfault.Itis16kmlongand12kmwide.Itdevelopedatthedepthof5kmandisnearlyverticalindip.Thetwopreviousearthquakesubsequences,however,weregeneratedbyactivityalongNNE-trendingright-lateralstrike-slipfault.Itcanbefoundthattherupturedirectioinofthe1999earthquakehaschanged.Itisgenerallyfoundthatarupturezonehasmorethantwodirectionsandhasdifferentstrengthalongthesetwodirections.Thecomplicatedegreeoffocalcircumstanceisrelatedtothetypeofearthquakesequences.ThereistheNE-trendingDawangcunfaultandtheNW-trendingTuanbufaultintheseismicregion,butnoproofindicatesaconnectionbetweenfocalfaultsandthesetwotectonicfaults.Thefeaturethatfocalfaultsofthreesubsequencesarestrike-slipisdifferentfromthatofthetwotectonicfaults.Itissuggestedthatthe1999earthquakesubsequencewaspossiblygeneratedbyanewrupture.

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简介：AheavyrainfalleventthatoccurredinShandongProvincein26-28August2004wascausedmainlybyTyphoonAereandcoldairactivitiesrelatedtoawesterlytrough.Theeventwastriggeredbyaninvertedtyphoontrough,whichwascloselyassociatedwiththeintensificationofthelow-levelsoutheasterlyflowandthenorthwardtransportofheatandmomentumintheperipheryofthetyphoonlow.AnumericalsimulationofthiseventisperformedusingthenonhydrostaticmesoscalemodelMM5withtwo-wayinteractiveandtriply-nestedgrids,andthestructureoftheinvertedtyphoontroughisstudied.Furthermore,theformationanddevelopmentmechanismoftheinvertedtyphoontroughandamesoscalevortexarediscussedthroughavorticitybudgetanalysis.Theresultsshowthattheheavyrainfallwasinducedbythestrongconvergencebetweenthestrongandweakwindswithintheinvertedtyphoontrough.Dynamiceffectsofthelow-leveljetandthediabaticheatingofprecipitationplayedanimportantroleinthedevelopmentoftheinvertedtyphoontroughandtheformationofthemesoscalevortex.Thevorticitybudgetanalysissuggeststhatthedivergenceterminthelowtroposphere,thehorizontaladvectionterm,andtheconvectionterminthemiddletroposphereweremaincontributorstopositivevorticity.Nonetheless,atthesamepressurelevel,theeffectofthedivergencetermandthatoftheadvectiontermwereoppositetoeachother.Inthemiddletroposphere,theverticaltransporttermmadeapositivecontributionwhilethetiltingtermmadeanegativecontribution,andthetotalvorticitytendencywasthenetresultoftheircounteractions.Itisfoundthatthechangetendencyoftherelativevorticitywasnotuniformhorizontally.Astrongpositivevorticitytendencyoccurredinthesoutheastofthemesoscalevortex,whichiswhytheheavyrainfallwasconcentratedthere.Theincreaseofpositivevorticityinthelow(upper)tropospherewascausedbyhorizontalconvergence(upwardtransportofvorticityfrom

简介：Xizhang沟被定位太原城市的10km西北，山西省，在Jiaocheng差错zone.The的北片断上的4.6m高度的一个趋势NNW陡坡前面，沟的尺寸是在长度的108m，在宽度的8m，并且在depth.There的10m是在trench.The揭示的18根地平线上面的阶层是沙的沃土；差错的downthrown块的上面的阶层是石子，更低的在差错的upthrown块上是棕色的沃土和沙的loam.The阶层的interbed是沙的l

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简介：AbstractPurpose:The increasing number of deaths due to road traffic accidents (RTAs) has attracted global attention. However, the influence of road types is rarely considered in the study of RTAs. This study evaluates the influence of different road types in RTAs in northern Guizhou to provide a basis for the formulation of evidence-based policies and measures.Methods:We obtained the data from the Zunyi Traffic Management Data Platform for the years 2009-2018. The mortality rates of RTAs were calculated. Descriptive methods and Chi-square tests were used to analyze the characteristics of road traffic collisions on different road types. We also examined the associations between the mortality rate per 10,000 vehicles and the growth of per capital gross domestic product (GDP) with Spearman's rank correlation analysis. According to the passing volume and the infrastructure, we defined different types of roads, like administrative road, functional road, general urban road and urban expressway.Results:In 2012, the traffic mortality rate of administrative roads was 8.9 per 100,000 people, and the mortality rate of functional roads was 7.4 per 100,000 people, which decreased in 2018 to 6.1 deaths per 100,000 people and 5.2 deaths per 100,000 people, respectively. The mortality rate per 10,000 vehicles reached the highest level in 2011 (28.8 per 10,000 vehicles and 22.5 per 10,000 vehicles on administrative and functional roads, respectively). The death rate of county roads was the highest among administrative roads (χ2= 17.389, p < 0.05) and that of fourth-class roads was the highest among functional roads (χ2= 21.785, p < 0.05). The mortality rate per 10,000 vehicles was negatively correlated with per capital GDP.Conclusion:Although our research shows that RTAs in northern Guizhou have steadily declined in recent years, the range of decline is relatively small. Many measures and sustainable efforts are needed to control road traffic death and accelerate the progress in road traffic safety in northern Guizhou.

简介：MicrosatellitemarkersandmorphologicalcharacteristicswereusedtoexplorethegeneticdiversityandpossibleoriginofweedyriceinTaizhouCity,JiangsuProvince,China.Fifty-twoweedyrice(OryzasativaL.)accessionswerecomparedwithtwowildrice,fourhybridriceandfivecultivarsusing22simplesequencerepeat(SSR)primerpairs.Atotalof107fragmentswereamplified,averaging5.6allelesperprimerpair.Thepolymorphicindexcontent(PIC)valuesrangedfrom0.3077to0.7951,averagingat0.5870.Theaveragegeneticdistanceofallsamplesrangedfrom0.02to0.46withanaverageof0.262.ThegeneticdistanceamongTaizhouweedyricerangedfrom0.03to0.44withanaverageof0.224.ClusteranalysisshowedthatalltheweedyriceaccessionsfromTaizhouCitywereindica,andcouldbesubdividedintodifferentgenotypes.Themajority(86%)ofweedyricewasmostcloselyrelatedtohybridrice.TheTaizhouweedyriceaccessionsweremorphologicallysimilar,butstillcouldbedelineatedintoindicaorjaponicagroupbysomemorphologicaltraits.ItissuggestedthatthelevelsofgeneticandmorphologicaldiversitiesofweedyriceinTaizhouCityarelowandtheseweedyriceplantsoriginatedfromthesegregatingprogeniesofhybridricethathadnaturallyintrogressedwithcultivatedrice.

简介：Ｉ．ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｉｓｐａｐｅｒ，ｏｕｒｍａｉｎｇｏａｌｉｓｔｏｓｅｔｈｅｒｅｇｉｏｎａｌｄｉｓｐａｒｉｔｉｅｓｉｎｓｏｃｉｏｅｃｏｎｏｍｉｃｄｅｖｅｌｏｐｍｅｎｔｉｎＪｉａｎｇｓｕＰｒｏｖｉｎｃｅ．Ｗｅｗｉｌａｌｓｏｉｎｖｅｓｔ...

简介：Aimingatfacilitatingtheresearchofurbantourismimagepositioning,thispapersummarizesthedomesticandabroadtheoriesonurbantourismimageandanalyzesitssignificanceforcities.WithDengfengasanexample,itsgoalistoboostdevelopmentofDengfengtourism,whichisanexcellenttourismcityinChina.Thispaperpresentsitscurrenturbantourismdevelopingsituation,positionsitstourismimage,concludestheplanofimagebrandandproposespromotionalslogansbasedontheanalysisofDengfengtourismlocalfeatures,itscoreelementsandperceptionsofvisitors.

简介：OnOctober11,2001,thesigningceremonyofstartingtobuildalargesizepumpedstoragehydropowerstationprojectinJiangsuProvincewasheldbyfourinvestingsidesinNanjing.ThisstationislocatedinTongguanMountainarea,about10kmsouthwestofYixingCity,adjacenttothesouthJiangsulo

简介：BasedonSwaverecordsofdeepteleseismsonDigitalSeismicNetworkofShanxiProvince,shearwavevelocitystructuresbeneath6stationswereobtainedbymeansofSwavewaveformfitting.Theresultshowsthatthecrustisthickinthestudiedregion,reaching40kminthicknessunder4stations.Thecrustallalternativeshighvelocitylayerwithlowvelocityone.Thereappearvariedvelocitystructuresfordifferentstations,andthestationsaroundthesametectonicregionexhibitsimilarstructurecharacteristics.Combinedwithdominantdepthdistributionofmanysmall-moderateearthquakes,thecorrelationbetweenseismogeniclayersandcrustalstructuresofhighandlowvelocitylayershasbeendiscussed.

简介：ＡｃｔｉｖｅＮｏｒｔｈｅｒｎＨｕａｓｈａｎＰｉｅｄｍｏｎｔＦａｕｌｔＺｏｎｅａｎｄＧｅｏｌｏｇｉｃａｌＨａｚａｒｄｉｎＳｈａａｎｘｉＰｒｏｖｉｎｃｅ￥ＨｏｕＪｉａｎｊｕｎ；ＨａｎＭｕｋａｎｇ；ＢａｉＴａｉｘｕ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｌｏｐ，Ｐ...

简介：TobuildarapidandaccuratemethodforgreenhousevegetablelandinformationextractionusinganindexmodelderivedfromTMdigitaldataofQingzhouCity,ShandongProvince,basedonasystematicanalysisofthespectralcharacteristicsofdifferentlandusetypesinthestudyarea,asubsetoftheimagewasfirstmadetoeliminatethemountainousregionnotassociatedwithvegetabledistribution,andthenwaterbodypixelsweremasked.WiththistheV1indexmodelforgreenhousevegetablelandextractionwasdeveloped.TheindexmodelindicatedgreenhousevegetablelandforQingzhouinApril2002wasconcentratedinthesoutheastandaroundruralresidentialareas.Fielddatausedforanaccuracyevaluationshowedthatgreenhousehectaresdeterminedwithremotesensingwere95.9%accurate,andaccuracyforthespatialdistributionofgreenhousevegetablelandcrosscheckedwitharandomsamplewas96.3%.Therefore,thisapproachprovidedaneffectivemethodforgreenhousevegetablelandinformationextractionandhaspotentialsignificanceformanagementofgreenhousevegetableproductioninthestudyarea,aswellasNorthChina.

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简介：Itisofpracticalsignificanceforthedecision-makingoncountryfoodsecurityandfarmlandprotectiontoanalyzetheconversionmarginsforthemajorusesofagriculturallandandtheirvariations.Basedonthepaneldataofwheat,corn,vegetable,fruit,andforestsproductionsfrom520investigatedfarmerhouseholdsof13investigatedvillagesinShandongProvincefrom2003to2009,andusingCobb-Douglasproductionfunction,therevenueconversionmarginscanbeobtainedseparately,betweendifferentgrain-crops(wheat,corn)anddifferentnon-graincrops(vegetable,fruit,forests),andtheconversionrelationshipbetweengrowinggrain(wheat,corn)andgoingoutfornon-farmwork.Theresultsshowthatfrom2003to2009,growingwheatandcornaremoreeconomicallyandreasonablyforfarmers,comparedwithgrowingvegetable,butgrowingwheatandcornarebecominglesseconomicallyandlessreasonablydaybyday,comparedwithplantingforests.Moreover,theconversionmarginbetweenwheatandfruitshowsobviousscissorsdifference.Justfrom2007,farmers'growingfruitbecameeconomicallyandreasonably,butuntil2009,comparedwithgoingouttoworkafterabandoningfarm8land,growingwheathadnoeconomicrationality.From2003to2009,farmers'growingcornismoreprofitablethangrowingfruitandgoingoutfornon-farmworkafterabandoningfarmland.Thesubsidiesforwheatandcornhaveincreasedfarmers'comparativeincomefromfoodproductionremarkably,butthesubsidiescannotchangethegeneraltendencythatfarmerstransformfood(wheat,corn)productionintonon-food(especiallyforests)production.Therevenuedifferencebetweengrowingwheat,cornandvegetableandgrowingfruitandforestsisbeingpulledceaselesslybigger,andthetendencythatfarmerstransformwheat,cornandvegetablegrowinglandsintofruitandforestsgrowinglandshasbecomeincreasinglyapparent.