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1.
In the past, domestic and abroad scientific workers have done a great number of researches of experiment forthe relationship between electrical resistivity change and stress on rock (Geoelectric Testing Group, Department ofGeophysics, Peking University and Research Division, Seismological Brigade of Lanzhou, 1978; Zhang, 1981;Chen, et al, 1983, Zhao, et al, 1983, Zhang, Lu, 1983; Zhang, et al, 1985; Brace, Orange, 1968, Kurite, 1986;Teisseyre, 1989), such as simulating the dynamic cour… 相似文献
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The bottom of the Lower Cambrian series is an important bed typical of boundary event. The bed had been enriched with many useful elements such as Ni, Mo, Cu, Pb, Zn, Au, Ag, Ru, Rh, Pd, Os, Ir and Pt, many rare and dispersed elements such as Cd, Se, Tl, … 相似文献
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《湖泊科学》2021,33(1)
专稿
论水生野生动物的主动保护与被动保护(1-10)
杨海乐,危起伟
淡水贝类观察——生物阐释水污染和毒理的创新手段(11-27)
陈修报,杨健,刘洪波,姜涛
综述
天然胶体的水环境行为(28-48)
王沛芳,包天力,胡斌,钱进
湖泊富营养化响应与流域优化调控决策的模型研究进展(49-63)
刘永,蒋青松,梁中耀,吴桢,刘晓钰,冯秋园,邹锐,郭怀成
研究论文
——富营养化与水华防控
19882018年滇池氮磷比的时空演变特征与原因解析(64-73)
高伟,程国微,严长安,陈岩
基于水华蓝藻固有光学特性的主要类群定量识别方法(74-85)
褚乔,张壹萱,张玉超,马荣华,胡旻琪
西藏巴松错浮游植物功能群垂直分布特征及其与环境因子的关系(86-101)
安瑞志,潘成梅,塔巴拉珍,杨欣兰,巴桑
鄱阳湖丰水期着生藻类群落空间分布特征(102-110)
钱奎梅,刘霞,陈宇炜
夏季东太湖光合有效辐射衰减特征及其对沉水植物恢复的指示(111-122)
徐德瑞,周杰,吴时强,戴江玉,吴修锋
喀斯特湿地水葫芦(Eichhornia crassipes)生长及表型可塑性特征对不同富营养化水体的响应(123-137)
滕秋梅,孙英杰,沈育伊,张德楠,徐广平,周龙武,张中峰,黄科朝,何文,何成新
——水环境保护与修复
城市场次降雨径流污染负荷快速估算方法(138-147)
何胜男,陈文学,廖定佳,周瑾,穆祥鹏
Fenton体系处理黑臭河道沉积物的效果初探(148-157)
罗春燕,巩小丽,张巧颖,陈煜,杜瑛珣
鄱阳湖网箱养殖区沉积物有机质来源分析(158-167)
王毛兰,熊鑫,何昶,赵茜宇,刘景景
不同丰枯情景下长江三角洲非通江湖泊(滆湖、淀山湖和阳澄湖)有色可溶性有机物组成特征(168-180)
石玉,李元鹏,张柳青,郭燕妮,周蕾,周永强,张运林,黄昌春
——水生态与生物多样性保育
水位对洞庭湖湿地4种典型沉水植物的影响(181-191)
刘向东,侯志勇,谢永宏,于晓英,李旭,曾静
水位波动的幅度与频率对刺苦草(Vallisneria spinulosa)生物量和形态特征的影响(192-203)
丁明明,黎磊,金斌松,陈家宽
河流大型底栖动物对环境压力的响应:以太湖、巢湖流域为例(204-217)
张又,蔡永久,张颖,高俊峰,李宽意
19882016年洞庭湖大型底栖动物群落变化及驱动因素分析(218-231)
王丑明,张屹,田琪,黄代中,高吉权,刘云志,龚正,陶世新,孟星亮
西江广东鲂(Megalobrama terminalis)繁殖生物学及繁殖策略(232-241)
刘亚秋,李新辉,李跃飞,陈蔚涛,李捷,朱书礼
——水文与水资源保护
基于系统动力学的巢湖流域水资源承载力动态预测与调控(242-254)
张礼兵,胡亚南,金菊良,吴成国,周玉良,崔毅
太湖流域梅雨的划分及其典型年异常成因分析(255-265)
吴娟,梁萍,林荷娟,吴志勇,钱琦雯
近100年来长江与洞庭湖汇流河段水文特征演变(266-276)
肖潇,毛北平,吴时强
长江中游沙质河段床沙级配调整过程计算(277-288)
李林林,夏军强,周美蓉,邓珊珊
洪泽湖水沙变化趋势和冲淤时空分布及驱动因素(289-297)
贲鹏,虞邦义,张辉,胡勇
三峡水库中段库底水体CH4浓度变化及其主要影响因素(299-308)
秦宇,苏友恒,李哲,刘正勉,张渝阳
——流域与可持续发展
近30年来鄱阳湖生态系统服务变化(309-318)
陈旻坤,徐昔保
研究简报
淡水磷酸盐氧同位素前处理方法的优化(319-328)
薛珂,张润宇,安宁,陈敬安,邹银洪,刘勇,张志 相似文献
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Distribution of empirical recurrence intervals for segment-rupturing earthquakes on active faults of the Chinese mainland 总被引:2,自引:0,他引:2
闻学泽 《地震学报(英文版)》1999,12(6):667-675
IntroductionInassessingtheprobabilitiesoftime-dependentandlong-termseismichazardsforsegmentsofactivefaults,itisnecessarytohavetheprobabilitydensity,f(O,fordescribingtherecurrenceintervaldistributionforsegment-rupturingearthquakes.Fromf(nandthefollowingequation,theconditionalprobability,pc,whichincreaseswiththetime,Te,elapsedsincethelatestearthquake,isabletobecalculated(Nishenko,Buland,1987,WorkingGrouponCaliforniaEarthquakeProbabilities,1995;Wen,1995,1998)fwhereATisthetimeintervalforthefor… 相似文献
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LINTRODUCTIONAstudyonevolutionandpredictionofthefluvialgeomorphicsystemhasdevelopedinthe1970's(Scheideggef,1975),andisstillapplied.Fromthemiddleofthe1980'son,researchofcatastrophicprocessesinthefluvialgeomorphicSystem(catatrophism,hazards)hasbeenfocusedon(SchummandChorley,1983,ShenandSchumm,1981,Chorley,SchununandSugden,1985).WhenafluvialgeomorphicSystemislocatedatthelinearregionofanollequilibriumstatebutveryclosetoequilibriumone,theboundaryconditionprotectstheSystemfromequilibrium,an… 相似文献
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A numerical study of 1-D nonlinear P-wave propagation in solid 总被引:3,自引:0,他引:3
IntroductionBecauseoftheextensivedistributionofruptures,micro-cracksandcrystalfracturesintheearth,therelationshipsbetweenthestressandstrainarenolongerlinear,infact,theyarenonlinear.Inordertoinvestigateandusethenonlinearcharacteristicsofsolidmediumintheearth,weshouldconsidertheinfluenceofnonlinearresponseduringthecourseofseismicmodelingandinversion.Thisisoneoftheimportantstudyfieldsthathavebeenpaidgreatattentionsinthere-centyearsintheworld(Minster,etal,1991;ZHANG,TENG,1993).Thenonlinearchar… 相似文献
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The crystal structure of (Fe_4Cr_4Ni)_9C_4 总被引:1,自引:0,他引:1
SHI Nicheng MA Zhesheng XIONG Ming DAI Mingquan BAI Wenji FANG Qingsong YAN Binggang & YANG Jingsui . X-ray Diffraction Laboratory China University of Geosciences Beijing China . Institute of Geology Chinese Academy of Geological Sciences Beijing China 《中国科学D辑(英文版)》2005,48(3)
The Luobusha podiform chromite deposit occursin the Luobusha ophiolite exposed at the In-dus-Yarlung Zangbo suture[1]. The wall rocks of chro-mitites are harzburgites. Many mantle minerals werefound in chromitites and harzburgites. Among of them,there are 120 grains of diamond[2], many elementalmetals (mainly Au, Cu, Fe, Ni, Cr, Al, W, Zn, Pb, Sn,Os, Ir, Ru, C, etc.) and their intermetallic compounds.Besides diamond and graphite, the element C isalso combined with Fe, Cr, Ni, Ti and … 相似文献
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IntroductionTheYanqing-Huailaibasin,whichconsistsoftheYanqing-FanshanandHuailai-Zhuolusub-basins,ismainlycontrolledbythenorthboundaryfaultsofthesub-basins.AsabasictectonicunitattheintersectionofthenortheasternendoftheNNE-trendingShanxigrabensystemandtheNW-trendingZhangjiakou-Penglaifaultzone,ithaskepttheintensivetectonicactivityintheQuaternary(YANG,1982;XU,DENG,1988;XU,MA,1992;FANG,etal,1993;Pavlides,etal,1999).Overthepastdecade,manyresearchershaveconductedstudiesonthedetailedstr… 相似文献
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IntroductionInrecent2oyears,throughstudiesofthegreatearthquakesoftheChinesemainlandanditSvicinitysincel9OO,itiswidelyrecognizedthattheseeventSoccurredinsomeregionsinarelativelyconcentratingmannerfordifferentperiods(Ma,Zhang,l986;Zhang,etal,l994,Hong,l994;Hong,elal,l997;Huang,Dong,l997).Inthispapef,wecallthemmajorregionsofgreatearthquakesincertaintime,ormajorregionsinshort.Themajorregionsofdifferentperiodscanmigratethroughlongdistanceinspace.Thegeneralpatternofthegreatearthquakedistributio… 相似文献
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IntroductionIncurrentstudiesofnewactivityofafault,orthecrustmovementandtheeallhdynamics,moreat'tentionshavebeenpaidonthedegassingactivities,andtheutilizationofGPStechniqueandtheseismicitydata(Kan,etal,1979,Li,etal,1993;1998).Beforetheoccurrenceofalargeearthquake,thegassesinnertheearthwillstronglyreleasealongthefaultduetotheactionofthetectonicstressfield.Suchphenomenahasbeendiscoveredandreportedintheearly1970s(Cat,etal,1980).Sincethe1980s,thetechniqueoffaultgashasbeendevelopedrapidlyandthegr… 相似文献
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Application of observed strain steps to the study of remote earthquake stress triggering 总被引:1,自引:0,他引:1
IntroductionModernseismologysuggeststhatearthquakesarecausedbyfaultslippingtriggeredbytec-tonicstressesaccumulatedtoacertainextent;andthefaultslip,inturn,releasesstresses.Infact,whenanintensivequakeoccurs,thefracturingoftheseismogenicfaultdoesnotleadtothereleaseofallthestressesbut,accordingtothegeometricrelationsamongthefaults,releasesstressesonsomeofthefaultstomakethemmorestable,whileaccumulatesstressesonotherfaultstomakethemtendtoslip.Asanapproximation,thestrengthofthefaulttobeysByerleylawby… 相似文献
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IntroductionChinesemainlandliesinthesoutheastofEurasianPlateandisclampedbyindian,PacificandPhilippineSeaPlates.Besides,itislocatedatbetweenthetwobigseismicactivebeltsintheworldatthesametime.Differingfromtheshowoftwobigseismicbeltswhichhaveseismiczonaldistributionalongplateboundary,Chinesemainlandanditsperipheralareahaveapeculiarcharacter,expressingseismicallylargestrength,highfrequency,widedistribution,shallowfocus,seriousdamage,multiplestyles,extremelynonuniformspace-timedistributionandsoo… 相似文献
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IntroductionUsingarrival-timeofobservedearthquakewavestoinfertheinteriorvelocitystrUctUreoftheearthisthebaseworkofgeophysics.Thepreviousstudyappliedclassicalmethodshaveobtainedmanymeaningfulresults(Jeffreys,Bullen,1940;Haddon,Bullen,1969;Mizutani,Abe,1972),andtodaytheseresultsstillisthefoundationbywhichweunderstandtheeaFth.Inthelasttwentyyears,alongwiththedevelopmentofseismicobservationarray,inversiontheoryandthepowerfulcomputer,theinversionmethodsanddatausingtoexplorethestructureofEarth'S… 相似文献
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IntroductionQinghai-Xizang(QingzangorTibetan)plateauisthemostremarkableactivecollisionbeltontheEarth.Itsaveragealtitudeis5km,itscrustthicknessupto70kmanditsareaabout7?05km2.Inrecenttwentyyears,withthegeophysicalobservationdatagettingmoreandmore,manydy-namicmodelsaboutcrustthickeningandTibetanuplifthavebeenputforward(Harrison,etal,1992;LI,1995;ZENG,etal,1994;ZHONG,DING,1996;XIAO,WANG,1998).Theycanbedividedintotwotypes.ThefirsttypecharacterizesthattheconvergencebetweenIndiaandEura-s… 相似文献
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《国际泥沙研究》1997,(1)
I.INTRODUCTIONMechanicsofsedimenttransportisabranchofbasictechnicalscienceinwhichtheprocessesoferosion,transportationanddepositionofsedimenttakeplaceunderactionofgravity,flowingwater,waveandwind.Microscopically,incipientmotion,rolling,sliding,saltationandsuspensionofindividualsedimentparticlesdependonthephysicalproperties,mineralcompositionoftheparticleandcharacteristicsofthenowandboundaryconditions.Macroscopically,sedimentmotionresultsingeomorphologicalevolution,fluvialprocessandenvironm… 相似文献
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IntroductionManystudies(Kan,etal,1977;Cheng,1981;Xu,etal,1987;Xie,etal,1993,Mulled,etal,1997)indicatedthatthedirectionsofcrustaltectonicstresseshaveregionalvariation.SimpleanalysesbymeansOfthreeprincipalaxesoffocalmechanismsolutions,whichexpressedasP... 相似文献
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Markus MAURER Research Associate Institute of Hydrosciences University of the Federal Armed Forces Munich Werner-Heisenberg-Weg D- Neubiberg/Munich Germany Youcef KELANEMER Research Associate Institute of Hydrosciences University of the F 《国际泥沙研究》1997,(3)
I.~OntjcnONEngineeringPredictionsofsedimenttransPOrtinopen-Channelsystems,especiallyifunsteadyflowconditionmustbeconsidered,isfraughtwithambigUityduetospatialandtemporalvariability,measurementerrors,lumtedsamplingoftheParameters,bounceandscallconditionS,andsink/sourcetenns.Duringrecentyearsmanysophisticatedmathematicalmodelshavebecomeavailabletocalculateunsteadyflowinone,tWoorthreedimensionS.ThesemodelswillbecoupledwithtranSportequationSforbedloadorsuSpendedloadtocalculateforexamplelongt… 相似文献