简介：Thispaperattemptstorevealalong-distance-relayedwatervaportransport(LRWVT)eastofTibetanPlateauanditsimpacts.TheresultsshowthatfromAugusttoOctober,eastofTibetanPlateau,thereexistsauniqueLRWVT,andthewatervaporfromtheSouthChinaSeaandthewesternPacificcanaffecttheSichuanBasin,NorthwestChinaandotherChineseregionsfarfromthetropicalseathroughthisway.FromAugusttoOctober,theprecipitationoftheregioneastofthePlateauiscloselylinkedbothintheintra-annualandinter-annualvariations,andtheLRWVTfromtheSouthChinaSeaandthewesternPacificisanimportantconnectionmechanism.Thelarge-scalecirculationbackgroundoftheLRWVTimpactingtheprecipitationoftheregioneastofthePlateauisasfollows:Athighlevels,theSouthAsianHighisgenerallystrongerthannormalandsignificantlyenhanceswithitsnorthwardadvanceandeastwardextensionovertheregioneastofthePlateau.Atmid-level,abroadlowpressuretroughisoverLakeBalkhashanditssurroundings,andtheWesternPacificSubtropicalHigh(WPSH)isnorthwardandwestwardlocated,andthewesternpartofSichuanBasinandtheeasternpartofNorthwestChinaarelocatedinthewestandnorthwestedgeofWPSH.

简介：PermafrostdegradationisprevalentontheQinghai-TibetPlateau.Thismayleadtochangesinwaterandheattransitioninsoilsandthusaffectthestructureandfunctionofecosystems.Inthispaper,usingthemeasureddataofalpinesteppeinWudaoliangassessedthemodelperformanceinsimulatingsoilfreezingandthawingprocesses.Comparisonofthesimulatedresultsbysimultaneousheatandwater(SHAW)modeltothemeasureddatashowedthatSHAWmodelperformedsatisfactorily.Basedonanalyzingthesimulatedandpredictedresults,twopointswereobtained:(1)freezingandthawingoftheactivelayerproceededbothfromthesoilsurfacedownward.Comparedwiththefreezingprocess,thethawingprocesswasslower.Thefreezingperiodpersistedinthesurfacelayer(4cmdepth)forabout5months;(2)inthenext50years,frozenperiodwouldbeshortenabout20daysinthetop100cmdepthwhilethethawingwouldstartearlier40daysthanpresent.Soilwaterstorageinthe0-60cmwoulddecreaseby22%averagely,especiallyfromJunetoAugustwhenthevegetationisatthedominatingwaterconsumedstage.Therefore,thiskindofpermafrostdegradationasactivelayerfreezingandthawingprocesseschangeswillreducesoilwatercontentandthusinfluencethoseecosystemsaboveit.

简介：在为高高度的高山的环境的中国的西藏的高原上有一系列特殊的山土壤。然而，很少的研究在关系集中了于主要土壤元素在这个区域玷污形成。铝(艾尔)，铁(Fe)，钙(Ca)，钠(Na)，钾(K)和镁(Mg)237表层土满足盖住2.8-km的样品在沿着中国的Qinghai西藏铁路的无教养的区域的高度的坡度用诱导地联合的血浆被测量原子排放光谱学。到父母岩石和气候的参数的元素和它的关系的空间分发被分析。沿着坡度的土壤从父母材料的一个范围被导出，但是最与小发展(Cambisols)是不到30厘米深的。土壤艾尔，Fe和Mg内容显示了来自开始车站(Xining车站)的一个减少的趋势结束Qinghai西藏铁路的车站(拉萨车站)，而土壤K和Na内容是从Xining的相对马厩车站到Kunlun山然后逐渐地增加了。土壤Ca内容在Tanggula山的南部的部分是更低的。主要土壤元素内容清楚地反映了父母岩石和气候的影响。有更高的Ca内容的土壤与Ca-Mg碳酸盐岩石出现在区域，与更高级的艾尔一起的土壤在区域被发现与充满硅酸盐并且碎屑状的岩石和充满硅酸盐的铝矽酸盐松开的high-Al硅酸盐沉积。有更高的K和Na内容的土壤与high-K，high-Na和充满硅酸盐的铝矽酸盐岩石出现在区域。而Mg，Fe，Ca和艾尔的内容是降水影响的更多，土壤Na和K内容被温度影响。而Mg，Fe，Ca和艾尔的内容与增加降水减少了，土壤Na和K内容与增加温度增加了。这分析提供在土壤性质和很快变化的环境条件之间的一种关系。数据能被用来在土壤性质上调查气候或陆地使用变化的效果。

简介：ＴＩＢＥＴＡＮＰＬＡＴＥＡＵＦＩＥＬＤＥＸＰＥＲＩＭＥＮＴ（ＴＩＰＥＸ）ＡＮＤＳＴＵＤＹＯＮＴＨＥＩＭＰＡＣＴＯＦＰＨＹＳＩＣＡＬＰＲＯＣＥＳＳＥＳＯＶＥＲＴＩＢＥＴＡＮＰＬＡＴＥＡＵＯＮＧＬＯＢＡＬＣＬＩＭＡＴＥＡＮＤＤＩＳＡＳＴＲＯＵＳＷＥＡＴＨ...

简介：评估似地球形状的意义尖并且在在半干旱的区域的盆沉积产量的地下侵蚀，我们进行了在Yangdaogou监视程序的一块地，在在在1989和1990的中国的黄土高原的多山的黄土区域的潜水艇盆。六个隧道系统通过十五个流动事件被监视。总的来说，全部的盆沉积的57%通过隧道系统被发送，网地下侵蚀占了盆的大约25%全部的沉积生产。这研究建议那地下侵蚀能在半干旱的区域在盆沉积交货和山斜坡开发是高度重要的。

简介：<正>Salinityisanimportantfactorcontrollingthemicrobialdistributioninlakes.Howeverlittleisknownabouthowmicrobialcommunitiesevolveinresponsetosalinityvariation.Inthisstudy,weinvestigatedthemicrobial

简介：StronggroundmotionparametersforShillongplateauofnortheasternIndiaareexamined.Empiricalrelationsareobtainedformainparametersofgroundmotionsasafunctionofearthquakemagnitude,faulttype,sourcedepth,velocitycharacterizationofmediumanddistance.Correlationbetweengroundmotionparametersandcharacteristicsofseismogeniczonesareestablished.Anewattenuationrelationforpeakgroundaccelerationisdeveloped,whichpredictshigherexpectedPGAintheregion.Parametersofstrongmotions,particularlythepredominantperiodsanddurationofvibrations,dependonthemorphologyofthestudiedarea.ThestudymeasureslowestimatesoflogarithmicwidthinShillongplateau.Theattenuationrelationestimatedforpulsewidthcriticallyindicatesincreasedpulsewidthdependenceonthelogarithmicdistancewhichaccountsforgeometricalspreadingandanelasticattenuation.

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简介：AbstractSchatzkter type-I tibial plateau fracture is a split fracture of the lateral tibial plateau in sagittal plane, consequent to valgus impaction caused by low velocity of trauma. However, a deep understanding of the different columns of the tibial plateau and patho-mechanisms of the injury led to the unmasking of atypical fractures around the tibial plateau. We have encountered 2 cases with unusual fracture pattern of the lateral tibial condyle caused by road traffic accidents. The fracture pattern and severity of injury deviate from the original description of Schatzker type 1; in view of dual plane split, there is rotation of the posterolateral column fragment along its sagittal plane plus grade-III medial collateral ligament injury. The patients were initially treated with knee spanning external fixator and after a latency of 5 days, definitive fracture specific fixation was done, combined with repair of grade-III medial collateral ligament injury. At the 6 months follow-up both the patients achieved satisfactory knee functions (knee society score case 1:100 and case 2: 92) and returned to their jobs. The severity of fracture pattern and displacement as described should prompt for examination of associated ligament injury. Because of timely diagnosis, early and appropriate care promised an excellent function outcome even in such a severe nature of knee injury. To prompt the description of injury pattern we coined the name "dual split and dislocation" of lateral tibial plateau, as a complex injury variant of split fracture of lateral tibial plateau fracture.

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简介：夏天从1961～2004的Qinghai西藏高原上的97个气象学的车站的逐日的降水数据被选择通过积累的变化分析时间空间的分发，关联分析，回归分析，empir

简介：正在不同关于在东北西藏的高原上在上面的treelines限制Qilian杜松属(JuniperusprzewalskiiKom)的光线的生长的气候的因素的看法。在这研究，从在东北西藏的高原的Anyemaqen山的一个上面的treeline地点的树被选择介绍低温度限制Qilian杜松属的光线的生长的新证据。用没有信号的地区性的曲线标准化(SF-RCS)方法，为Qilian杜松属的一张戒指宽度年表被开发从广告1082～2010延长。在树戒指索引和仪器的气候的变量之间的关联分析的结果两个都显示出那冬季(在上一年的12月和当前的年里的1月)和夏天(当前的年里的7月和8月)温度显著地并且断然与树戒指索引被相关。在6月的降水显著地并且断然也与树戒指索引被相关，但是不象在控制树生长的低温度一样重要。测试为树限制气候的因素的钥匙在不同高度的光线的生长，指示物称为到上面的treeline(RDUT)的相对距离被开发确定代表性为森林收集了样品上面的treeline。RDUT证明上面20%森林带可以以在东北西藏的高原上在上面的treelines从树戒指宽度捕获温度信号是一条重要边界。我们的调查结果提高温度是在东北西藏的高原上的上面的treelines的限制因素的存在理解，并且将在在未来研究的过去的温度的重建有用。

简介：Themainobjectiveofthisstudyistosimulatethepotentialvegetationtypesonthebasisofenvironmentalparameters.ThepapertookBarkamCountyinamountainousregionoftheEasternTibetanPlateauasthestudyarea.Thevegetationdistributionwasmappedin1994and2007basedonTMremotesensingimagesbyobject-orientedinterpretationmethod.Weoverlaidthetwomapstofindoutthevegetationpatcheswhichhavenotchanged,andtookthemasstabletypes.Fiftypercentofthestablepatcheswererandomlysampledtooperatethelogisticregressionwithrelatedenvironmentalparameters;otherswereusedastestdataofsimulatedresults.Sevenenvironmentalparametersweremapped,includingelevation,slope,aspect,surfacecurvature,solarradiation,temperatureandprecipitation,basedonDEMdataandmeteorologicalsitedatabyGIStechnology.Therelationshipbetweenthespatialdistributionofvegetationandenvironmentalvariableswerequantifiedbylogisticregression.Thedistributionprobabilitiesofeachvegetationtypewerecalculated.Finally,thespatialdistributionofpotentialvegetationwassimulated.Thisresearchcanprovideascientificbasisforvegetationrestorationandecologicalconstructioninthisarea.

简介：Timedomainreflectometry(TDR)isahighlyaccurateandautomaticmethodfordeterminationofporousmediawatercontentandelectricalconductivity.ThispaperfocusesonthebasicprincipleofTDRtechnologyanditsapplicationinCaijiachuanwatershed,theLoessPlateau,China,thecompositionandstructureofasetofTDR-TRIME.Theinstallation,measurementandcalibrationofTRIME-TDRintheLoessPlateauhasbeenintroduced.ThefactorsthatcaninfluencetheveracityofthemeasurementbyTDRhavealsobeenanalyzedinthearticle.

简介：Weplantoestimateglobalnetprimaryproduction(NPP)ofvegetationusingtheAdvancedEarthObservingSatellite-Ⅱ(ADEOS-Ⅱ)GlobalImager(GLI)multi-spectraldata.WederiveanNPPestimationalgorithmfromgroundmeasurementdataontemperateplantsinJapan.Bythealgorithm,weestimateNPPusingavegetationindexbasedonpatterndecomposition(VIPD)fortheMongolianPlateau.TheVIPDisderivedfromLandsatETM+multi-spectraldata,andtheresultingNPPestimationiscomparedwithgrounddatameasuredinasemi-aridareaofMongolia.TheNPPestimationderivedfromsatelliteremotesensingdataagreeswiththegroundmeasurementdatawithintheerrorrangeof15%whenallabove-groundvegetationNPPiscalculatedfordifferentvegetationclassifications.

简介：<正>1IntroductionIn2006,planktoninvestigationwascarriedoutinthelakesinAlidistrict,Tibet.7planktoniccrustaceanswereidentifiedandreported.MetadiaptomusasiaticusUljanirswasreportedforthefirsttimeontheQTP(Yuanetal.,2007).However,detaileddataonthisspecies,especiallyitsecologicalsignificance,werenotmentioned.Inthis

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简介：一个332厘米的长湖的核心在西藏的高原的中央南部的部分在Nam公司被钻。从核心，ostracods的15种类(甲壳纲：Ostracoda)，它属于6个类被识别了。根据o的变化

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