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1INTRODUCTIONBydefinitionurbanizationistheprocessofruralareaschangingintourbanareasinnatureforasoci-etyitisanaturallyhistoricalprocessofthetransitionfromatraditionalruraloragriculturalsocietytoamodernizedurbansocietyGAO1991.Inbriefitrepresentsa… 相似文献
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1INTRODUCTIONThecoreofgeographicalstudiesthearealsystemofmanlandrelationshipWU1991isthestartingpointofstudyingregionalsustainabledevelopment.Fromthepointofsustainabledevelopmentthecoordi-nationofmanlandrelationshipisdevelopmentsustain-ability.… 相似文献
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1INTRODUCTIONInecosystemfragileecoenvironmentisdefinedasthe“interface"betweentwoormoresystemsofmatterenergystructureorfunctionandthetransitionregionextendingfromthisinterfaceNIU1989.ThefragileecoenvironmentoftheSongnenPlainissitu-atedonsuch… 相似文献
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RESEARCH ON DISTURBED MECHANISM OF THERMAL NOISES OF THE SURFACE IN ABRUPT GEOTHERMAL ANOMALY 总被引:3,自引:2,他引:1
1INTRODUCTIONGeothermalanomalyisaphenomenonthatunder-groundtemperatureandgeothermalgradientincreasesmuchmoreintheareathanitssurroundingsXIA1979.Thisisanormalglobalphysicalphenomenonintheactiveandthelatentvolcanicarea.Duringthewarningsignperiodofan… 相似文献
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1INTRODUCTIONWiththeaccelerationoftheeconomicglobaliza-tionthegradualshapingofthenewinternationaldivi-sionoflaborandthedevelopmentofthetransnationalcorporationstheworldurbansystemshavebegunanewroundofintegration.Ononehandthecitiesallovertheglobeare… 相似文献
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United international central city: A new spatial organization model in tumen river economy development zone 总被引:1,自引:0,他引:1
张平宇 《中国地理科学(英文版)》1998,8(4):370-376
I.INTRODUCTIONSince1980,NortheastAsiahasexperiencedarapidregionaleconomicunificationagainsteconomicglobalization.TheTumenRive... 相似文献
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1INTRODUCTIONNoonecandoubtthatoneofthemostexcitingsoundsinnineteenthcenturyAmericawasthewhistleofalocomotive.ThroughoutthewholecenturyespeciallyinthesecondhalfrailroadsplayedadramaticroleintransformingtheAmericanwestfromabarrenlandintoapopulatedone… 相似文献
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STUDY ON WETLAND LOSS AND ITS REASONS IN CHINA 总被引:2,自引:2,他引:0
1INTRODUCTIONWetlandsaretheecosystemswithmanyfunctionsandhavebeenprovidinguswitharangeoffunctionsandbenefitssuchaswatersupplyflowregulationsendimentretentionmoderationofclimatepreventionofsalinewaterintrusionetc.Althoughwetlandoccupyonlyabout6%… 相似文献
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张新长 《中国地理科学(英文版)》1999,9(3):265-273
1 INTRODUCTIONGuangdongProvincehasbeenwidelyknownasoneofthemostimportantindustrialbasesforexportinChina.IthasplayedanimportantroleineconomicreformanddevelopmentinChina.Inrecentyears,ithasattainedasustainableeconomicgrowthandkeptthefirstpositioninecon… 相似文献
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ZHU Jin-hua 《中国地理科学(英文版)》2001,11(3):278-282
1INTRODUCTIONWiththerapiddevelopmentandapplicationofnewtechniquessuchascomputercartographyhasenteredthe21stcentury′sdigitalperiodfromcomputerassistmappinginthe1970straditionalmaprepresentationhastransformedfrom2Dmonomediumstaticinto3Dmultim… 相似文献
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1INTRODUCTIONForestlitterwhichisthephysicalmakeuppartofforestecosystempresentsmanyimportantactionsuponecosystem.Howeverifforestlitterisaccumulatedtoexcessitwillproducesomenonnegligiblenegativein-fluencewhichcouldbethecauseofaforestfireortheimpor… 相似文献
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THE SIMULATED STORAGE CAPACITY OF FLOOD AND WATERLOGGING IN THE TYPICAL AGRICULTURAL REGION IN JIANGHAN PLAIN 总被引:2,自引:0,他引:2
1INTRODUCTIONJianghanPlainisoneoftheimportantbasesofChina′sagriculturalproductivitylocatedinthemiddleChangjiangRivervalleyofcentralChina.TheJianghanplainapproximately6.6×104km2inareaandover30millioninpopulationistherenowned“countryoffishandrice"in… 相似文献
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I.INTRODUCTIONCitiesarethesymbolsofhuman’scivilization,thespatialcariersofeconomyandthesourcesofregionaleconomicactivities(Gu... 相似文献
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INTRODUCTIONIncreasingattentionwasfocusedontheneedtostudythebacteriologyofmarinefishinChina ,becauseofbacteriaassociationwithhighmortalityinmarinefishcultureandconsequenteconomiclosstofishfarms (Dengetal.,1 996;Linetal.,1 999) .Vibriogenusbacteriahaveemergedast… 相似文献
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陈国阶 《中国地理科学(英文版)》1999,(4)
1 INTRODUCTIONNowadaysthedevelopmentofworldindustriesandeconomyischaracteristicofafewconspicuoustrendswhichmaychallengetraditionaleconomicdevelopmentmodelsandtheories.Firstofall,theeconomyoftheworldhasbeenbecominginglobalspace,ofwhichtheremarkablei… 相似文献
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1 CHANGESOFINDUSTRIALSTRUCTURE1.1 ChangesofStructureofThreeEconomicSectorsSincethereformofeconomicsystemandopeningtotheoutsideworldinthelate1970s,theindustrialstructureofGuangdongProvincehasbeenexperiencinganobviousprocessofnonagriculturalizationw… 相似文献
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1 INTRODUCTIONCityplaysanimportantroleintheprocessofre gionaleconomicdevelopment .Forinstance ,in 1996,thetotalmunicipalareasof 666citiesonlycoveredtheproportionof 18.12percentinnationalterritory ,andbuilt uparea 1.8percent .Buttheyproducedthe 68.63percentofGDP(GrossDo… 相似文献
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黄静 《中国地理科学(英文版)》1996,6(2):120-131
ON DEVELOPING ENVIRONMENT AND RESOURCE DEVELOPMENT OF PANZHIHUA HuangJing(黄静)(RegionalEconomicInstitute,People’sUniversityofC... 相似文献
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1 ADVANCINGOFTHEQUESTIONANDCONSTRUCTIONBACKGROUNDOFSUZHOUINDUSTRYGARDENPerroxgavespecialattentiontotheeffectofimportantitemsandconstructionofinfrastructurewhenhediscussedtheproductionofgrowthpole(Li,1988).Lotsofdomesticscholarshavealsoprobedintothi… 相似文献
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INTRODUCTIONTheBohaiSeawaschosenasthesiteofthefirstphaseoftheChina GLOBEC (GlobalOceanEcosystemDynamics)programfrom 1 997to2 0 0 0 ,inwhichthedynamicsofzooplanktonpopulationswasoneofthefourprincipalfoci.Smallcopepodscompriseanimportantcomponentofzooplanktonesp… 相似文献