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简介：AmongtheHenduanMountains,therearefouradjacentpeaksthatcomprisetheFour-GirlMountainRange.TheyarelocatedinRilongTownontheborderofXiaojinCountyandWenchuanCountyinAbaTibetanAutonomousPrefecture.Itis3,160metershighabovesealeveland220kmfromChengdu.

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简介：AlthoughChenChunyu,theheadofourtourgrouphadtoldusto,getreadybyeighto'clock,XiuXiuandIwokeupasearlyassix;webothfeltsoexcited.

简介：Thereisastorytellingofareligiousmasterallegedlycapableofmovingmountains.Amancametohimaskingforademonstratiom.Themastersatinfrontofamountainforamoment,thenwenttotheothersideofitanddeclaredtheendofthedemonstration.Alltheaudiencesweregreatlypuzzledandbeggedhimforanexplanation.Hesaid:“Therehasneverbeenawayofmovingmountains;whatyoucandoistogotothemountainifitdoesn'tcome”.

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简介：<正>WeareconcernedwiththefollowingDirichletproblem:-△u（x）=f（x,u）,x∈Ω.u∈H01（Ω）.（P）wheref（x,t）∈C（Ω×R）,f（x,t）/tisnondecreasingint∈RandtendstoanL∝-functionq（x）uniformlyinx∈Ωast→+∝（i.e.,f（x,t）isasymptoticallylinearintatinfinity）.Inthiscase.anAmbrosetti-Rabinowitz-typecondition,thatis.forsomeθ>2.M>0,0<θF（x.s）≤f（x,s）s,forall|s|≥Mandx∈Ω,（AR）isnolongertrue,whereF（x,s）=integralfromn=0tosf（x,t）dt.Asiswellknown,（AR）isanimportanttechnicalconditioninapplyingMountainPassTheorem.Inthispaper,withoutassuming（AR）weprove,byusingavariantversionofMountainPassTheorem,thatproblem（P）hasapositivesolutionundersuitable,conditionsonf（x,t）andq（x）.Ourmethodsalsoworkforthecasewheref（x,f）issuperlinearintatinfinity.i.e.,q（x）≡∞.

简介：在分析中国水土资源的状况及水土流失危害的基础上，作者介绍了中国山区流域经营的主要经验与措施体系；应用全国各大流域２０个典型，分析了流域经营的效益．为了判别流域经营的可持续性，提出了包括社会经济与生态环境两个方面的可持续流域经营指标体系．

简介：ＲｉｔｕａｌＷａｌｋｓＡｒｏｕｎｄＢｅｎｒａｂＭｏｕｎｔａｉｎ￥／／ＬＡＭＣＯＴｈｅＮｙｉｎｇｃｈｉａｒｅａａｌｏｎｇｔｈｅＮｙａｎｇＱｎＲｉｖｅｒ，ａｎａｒｅａｈｉｓｔｏｒｉｃａｌｌｙｋｎｏｗｎａｓＧｏｎｇｂｏ，ｗａｓｔｈｅｈｎｍｅｏｆｔｈｅＧｏｎ...

简介：有一些18的Qinling隧道。488km在Qinling山的中间从Xi鈥檃n(山西省)位于铁路线到Ankan(四川省)。它是在中国的最长双的轨道铁路隧道并且在世界上占据第三个位置。根据设计，在调查的altimetric控制引起的垂直方向的突破错误为穿透脸的盒子被限制到18mm。因为铺平的线路在长度在120km上到达并且必须在2800m高度温习二座山，一阶的精确铺平和精确严肃测量应该在构造阶段被执行。在这份报纸，与最后的结果分析铺平途径，新技术的申请，一些经验以及办公室计算的地被介绍。由过细的计划，组织和观察，二个隧道结束点之间的垂直差别的最后的精确性仅仅是8mm，并且它提供可靠调查为这个大隧道工程的保证。最后，这垂直差别象114mm一样高与主要测量结果显然区分开来，这被指出。它意味着主要结果不是足够精确的。

简介：Ekeland’svariationalprincipleisafundamentaltheoreminnonconvesanalysis.Itsgeneralstatementisasthefollowing:Ekeland’sVariationalPrinciple'’a:.LetVbeacompletemetricspace,andF:F—*-RU{+°°}alowersemicontinuousfunction,notidentically+00andboundedfrom,below.Lets>0begiven,andapointu^VsuchthatF(u)

简介：ByWenZuowuandGanLu1.CommunityForestryandMountainEnclosureforReforestationTheterm"communityforestry"hasbeenintroducedintoChinainrecentyears.Althoughinthepasttheterm"communityforestry"wasnotused,thepracticehasalonghistoryinChina,especiallyintheruralareaofsouthernChinawhereindividualhouseholdsorcollect

简介：Glacialdepositsinlocally-glaciatedmountainregionsareoftenexpressedthroughtheirsurfaceformandthestudyofthesedepositsconstitutesamajorbranchofgeomorphology.Studiesofglacialdepositionalrecordsinmountainareashaveoftenneglectedformalstratigraphicalprocedureresultinginanadhocdevelopmentofquasi-stratigraphicalnomenclature.Here,aformalstratigraphicalprocedureisrecommended,sincethisenablesasystematicapproachtothesubdivisionofglacialdepositsinmountainregions.Moreover,suchanapproachfacilitates,insomeinstances,thedevelopmentofaformalchronostratigraphythatcanbecomparedtoregionalandglobalgeologicaltimescales.Thisisimportantinlocally-glaciatedmountainregionswhereglacialdepositsrepresentoneofthemostimportantrecordsofcoldstageenvironments.GiventhatglaciallandformsrepresentakeycomponentoftheQuaternaryrecord,maintainingaformallinkbetweengeomorphologicalandgeologicalstratigraphicalprocedureisafundamentalrequirementofaconsistentandcomparablestratigraphicalframework.

简介：Accordingtothecharacteristicsofsodarecho,aclassifiedmethodfortemperaturestratificationisgiven.ByusingsodardataobservedinYanshanMountainareainBeijing,thestatisticalcharacteristicsfortheheightofinversionlayer,thermalplume,andthedepthofmixedlayerarecompared.Finally,theappearancefrequencyforstable,unstableandneutralstratificationisanalyzed.

简介：Therearemanythrust-relatedstructuresoccurringinthePaleozoicstrataoftheNiushouMountaininthecentralpartofNingxiaHuiAutonomousRegion.Thefault-relatedfoldsarethetypicalstructuresinthisarea.Basedontheanalysisaboutthesestructuresandtheirrelationships,theprocessesbywhichthesestructuresoftheMiboshanFormationwereformedarereconstructed,andthestrataunderwentaboutthreestagesofdeformation:(1)horizontalshortening,(2)folding,and(3)thrusting.AndthefactthattheNiushouMountainistheleadingedgeofanoldthrustsheetwasproved,theNiushouMountain,theDaluoMountainandtheXiaoluoMountaintogetherconstitutethefrontpartofthisoldthrustzone,sotheNiushouMountainandtheOrdovicianstratainthecentralandsouthernpartsofNingxianowarelikelyallochthons.IntheperiodfrommiddleOrdoviciantoDevonian,theareasofthecentralandsouthernNingxiabelongedtotheback-arcforelandbasinofNorthQilianshanorogen,whichwasadjacenttothecontinentinthenorth.InthelaterpartoftheearlyPaleozoicperiod,theNiushouMountainwasformedaftertheclosureoftheback-arcforelandbasin.

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简介：ＧＲＥＥＮＭＥＳＳＥＮＧＥＲ──ＷＯＭＥＮ’ＳＭＯＵＮＴＡＩＮＰＲＯＤＵＣＴＩＯＮＢＲＩＧＡＤＥＩＮＹＯＵＸＩＶＩＬＬＡＧＥＢｙｐｒｏｊｅｃｔｔｅａｍ“ＷｏｍｅｎａｎｄＳｏｃｉａｌＦｏｒｅｓｔｒｙ”Ｗｏｍｅｎｉｎｍｏｕｎｔａｉｎｏｕｓａｒｅａｓｗａｒ...

简介：ThegeneticdifferentiationofKoreanpine(Pinuskoraiensis)indifferentaltitudesinChangbaiMountainwasanalyzedbyISSRtechnique,anditwasfoundthatthelevelofgeneticdiversityofKoreanpinereducesalongwithaltitudeincreasinginChangbaiMountain.ThevariationofKoreanpineismainlyfromintra-populationandthereisapositiverelativitybetweengeneticdistanceandverticalgeographicdistanceofKoreanpineindifferentaltitudes.ThegeneticcoherenceshowsthataltitudehaslessinsulationtoKoreanpine.Therefore,itisdeducedthattheterrainformationofverticaldistributionofKoreanpineisaresultofdiffusionfromloweraltitudetohigheraltitudeinthecourseofenlargingitsadaptability.