简介：在夏天，紧张，地点和vertical的不同汇编副热带的高度和早/以后的时间组织它的季节向北跳在中国上引起不同降水模式。因此，副热带的高活动和它的原因在在中国和Chinadrought/flood的原因上的极端气候的事件的出现期间被学习改进预报的天气。自从1990年代，副热带的高活动的物理机制上的许多理论研究被做了，它集中于加热的热带diabatic的效果并且在副热带的高形成和变化上的空间不一致的加热，但是很少考虑动态环境变化的影响在它上由西的系统或副热带的上面的喷气的反常活动产生了。根据动态理论和摘要的原则，此处，在2003的HuaiheRiverfloods上的副热带的高活动和它的影响被分析，并且在副热带的高活动和它的形成机制的西、副热带、热带的循环的反常特征的效果进一步被学习，它被期望对在中国的运作的夏天降雨预报有用。

简介：TobetterunderstandclimatevariationsofMeiyu,somenewindicatorsfortheonsetandretreatdates,duration,andMeiyuprecipitationintheYangtze-HuaiheRivervalleyareobjectivelydevelopedbyusingobserveddailyprecipitationdatafrom230stationsineasternChinaduring1954-2003.Therainyseasononsetandretreatdatesineachstationcanbedefinedintermsofthresholdsforrainfallintensityandpersistence.Then,theonsetandretreatdatesoftheMeiyufortheYangtze-HuaiheRiverbasinhavebeendeterminedwhenmorethan40%ofstationsreachthefirstrainyseasonthresholdsinthestudyregion.BasedontheindicatorsofMeiyuintheYangtze-HuaiheRiverbasin,variationsofMeiyurainfallduring1954-2003areanalyzed.TheresultssuggestthatMeiyurainfallintheYangtze-HuaiheRiverbasinhasincreasedinrecent50years.Inaddition,interannualandinterdecadalvariabilityofMeiyuisalsoobvious.Alltheindicatorsdisplayapredominantperiodofabout3years.

简介：选取三江平原典型沼泽湿地——毛苔草沼泽，通过人工施加氮肥和磷肥来模拟农田污水排入沼泽湿地后，沼泽植物对污水的净化效果。从植物营养吸收角度进行野外实地污水净化模拟研究，对植物直接吸收利用的营养成分NH4^+-N、PO4^3--P进行了测试分析。研究表明毛苔草沼泽对水中的NH4^+-N、PO4^3--P的净化随时间的推移呈现明显的指数衰减下降趋势，随着氮、磷含量的增加，沼泽湿地对污水净化逐渐变慢，净化所需时间增长，曲线数值方程模拟效果较好。

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简介：各位代表、各位来宾、各位领导：浙江省测绘学会第五次会员代表大会暨综合性学术研讨会现在隆重开幕了。

简介：中国人民银行货币政策委员会秘书长易纲指出。我国物价下降的原因有4点：①整个市场供过于求。在国家经贸委调查的600种市场商品中，86％的商品供过于求，供求平衡的只占13．7％。

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简介：IthasbeenatraditiontoorganizeverysuccessfulUNESCOPostgraduateCoursesonGeochemicalProspectingMethodsintheformerCzechoslovakiafrommid70's.Thefirstcertificatedcourse--GEOCHIMPRAHAUNESCO1975waslaunchedonSeptember5,1975andlastedtillOctober25,1975.SincethattimethiscoursehasbeenorganizedbiannuallybytheCzechGeologicalSurveyinPraguetogetherwiththeDionyzSturGeologicalSurveyinBratislavaandsponsoredbytheDivisionofEarthSciences(UNESCO/Paris)andtheInternationalAssociationofGeochemistryandCosmochemistry(IAGS).Thecoursewasspecializedonboththeoreticalandpracticaltraininginclassicalgeochemicalprospectingmethods.AteamofinternationallyexperiencedgeoscientistsasDrs.J.Pokorny,F.Mma,J.Manour,V.LomozovaZ.Sulcek,I.Rubeska,A.Spackova,V.Sixta,J.Juna,J.Veselu,J.Dornicandothers,co-ordinatedbyDr.ZdenekPacalfromtheCzechGeologicalSurveyinPraguehassoonearnedhighinternationalreputationandtheGEOCHIMCSSRUNESCOPostgraduateCoursedevelopedintooneofthemostsuccessfulPostgraduateTrainingProgrammesofUNESCO.

简介：Therehavebeen12possiblelocationsoftheearthquakesoccurringintheSouthYellowSeasince1505.Inthispaper,thelocationoftheearthquakethatoccurredin1505hasbeendeterminedbythecollectionofmorehistoricaldataoftheinfluencedfield,referringtheisoseismaldataofearthquakeswiththeepicentralintensityⅨandcombininggeophysicalfielddatawithtectoniccondition,duetoitsgreatinfluenceonseismicsafetyassessmentofsomesignificantengineering.

简介：CH4emissionrateshavebeenmeasuredcontinuouslyfortheearlyriceof1988andlatericesof1987and1988duringentiregrowingseasonsinaricepaddyfieldinHangzhou,ZhejiangProvince,China,byusinganautomaticsamplingandanalyzingsystem.DuringmostpartsoftheseasonsCH4emissionratesshowedstrongdiurnalvariations.Bi-modepatternswiththehighestvalueintheafternoonandasecondpeakatmid-nightweregenerallyfoundfortheearlyrice,whilethehighestvalueswerealmostalwaysfoundinthenightforthelaterice.Bi-modepatternswithasecondpeakintheafternoonwerealsofoundduringthereproductivephaseofthelatericeplants.Thesediurnalvariationsmaybeexplainedbythediurnalvariationsofthesoiltemperatureandtheactivityofriceplants.Strongseasonalvariationswithonepeakinthetilleringstageandtwoduringthereproductivephaseofriceplantswereobservedforallthethreegrowingseasons.Theseasonalvariationsmaybeexplainedbytheactivityofriceplants,availabilityoforganicsubstratesinthesoil,andtheactivityofsoilbacteriarelatedtosoiltemperatures,FertilizationdidnotshowsignificanteffectsonthetotalseasonalCH4emissionsbutslightlychangedthepatternoftheseasonalvariationsoftheCH4emissionrates.Averagedoverthemeasuringperiodsand8spots,CH4emissionratesof7.8mgm-2h-1fortheearlyriceand28.6mgm-2h-1forthelatericewereobtained.Basedonthesemeasureddata,thetotalglobalemissionofCH4fromricepaddiesisestimatedtobeabout90Tg/yrrangingfrom70to110,accountingfor20%ofthetotalsourceofCH4.

简介：Acomprehensivestrengthmonitoringsystemusedonafixedjacketplatformispresentedinthispaper.Thelong-termmonitoringofW-11-4Aplatformachieved.Structuralresponses(strainandacceleration)atselectedlocations,aswellasassociatedenvironmentalparameters,havebeenobtained.Theemphasisofthepaperisplacedonthesystemdesign,andtheinstrumentationandoperationmethodologyemployedinthemonitoringofthestructuralresponses.Theperformanceofthesystemandthecharacteristicresultsobtainedduringits13-monthoperationarealsosummarized.

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简介：Thispaperpresentsthedetaildesignconditions,designcriteriaandmethodsaswellasdesignconclusionsoftheprocess,structureandcorrosionoftheproductionflowlinesandhighpressurewaterinjectionlinesinBZ34-2/4oilfieldinBohaiBay.AtpresentthisdesignrepresentsthedesigncapabilityandlevelinthefieldofthesubmarinepipelineengineeringofChina.

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