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1.
I.INTRODUCTIONCitiesarethesymbolsofhuman’scivilization,thespatialcariersofeconomyandthesourcesofregionaleconomicactivities(Gu...  相似文献   

2.
I.INTRODUCTIONItisgeneralyacceptedthatthedegradationofrenewableresourcesandfragileenvironmentsindevelopingcountriesisbecomin...  相似文献   

3.
PROBLEMSOFRESERVOIRSEDIMENTATIONINCHINAJiangNaisen(姜乃森)FuLingyan(傅玲燕)ChinaInstituteofWaterResourcesandHydropowerResearch,Beij...  相似文献   

4.
NO.1(Total33)MeaswresandProposalsfortheDevelopmentandProtectionofLandandResourcesinZhejiangProvinceDuringtheTenthFive - yearPlan…………………………………………………………Tang Wenquan(5)DiscussionontheStratgraphicPositionofLateMesozoicVolcanic -SedimentaryRooksinYandangshan…  相似文献   

5.
THECHINESEECOLOGICALRESEARCHNETWORKZhaoJianping(赵剑平)(BureauofResourcesandEnvironmentalSciences,theChineseAcademyofSciences,Be...  相似文献   

6.
I.INTRODUCTION“Agenda21”recognizestheimportanceoflandbasedsourcepolutantstomarinepolution.Coastalwaterisofgreatsignificance...  相似文献   

7.
1 INTRODUCTIONThelocalprecipitationismostimportantavailablefreshwatersourceindeserts.TheTaklimakanDesertbelongstoanextremearidbelt.Accordingtoafewyears’limitedobservationdata,itisestimatedthattheprecipitationshouldbeintherangeof30-50mmannually.Howev…  相似文献   

8.
STUDIESONWATERSTAGEFLUCTUATIONOFYAMZHOLAKEINXIZANGLiuTianchou(刘天仇)(TibetanBureauofWaterResourceandHydrologicalSurvey,Lhasa350...  相似文献   

9.
1 INTRODUCTIONTherecentandfuturedevelopmentofspacebasedremotesensingtechnologyhasbroughtareformationtoresearchworkaswellasformulatingsuitablepolicyforpopulation,resources,environmentanddevelopment.Throughrealtimeandperiodicobservationsofalargear…  相似文献   

10.
UTILIZATIONANDSUSTAINABLEDEVELOPMENTOFISLANDMOUNTAINSINCHINA①ZhangYaoguang(张耀光)YangYinkai(杨荫凯)InstituteofMarineResources,Liao...  相似文献   

11.
1 INTRODUCTIONInrecentyearstheecoenvironmentoftheChangjiangRiverbasinsufferedfromseveredestruction,sedimentcontentintheriverwatergreatlyincreased,thedownstreamcoursewasseriouslysiltedupandfloodcontrolcapacitywasweakened.Thesimilarsituationalsooccu…  相似文献   

12.
THEIMPACTOFTHECONTEMPORARYCLIMATICCHANGEONCHINASTHERMALRESOURCES¥LiuYunfen(刘允芬)(CommissionforIntegratedSurveyofNaturalResourc...  相似文献   

13.
1INTRODUCTIONSeverewaterpolutionandwaterresourcesshortageshavebecometwokeyobstructionstorealizesustainableutilizationofwate...  相似文献   

14.
SecretaryofthePartyCommitteeLuo’sTalksontheEndofWorkMeetingofGuangxiLandandResources 1( 1-7)………………………………DeepenReformationwithOneHeartandOneMind OpenUpaNewProspectofGuangxiLandandResourcesAdministrationYangZheng -zhong 1( 9-14 )…………………………………………………………………………………Re…  相似文献   

15.
INTRODUCTIONTheproductionofphytoplanktonisthefirsttacheintheproductionbymarineorganismsandinthemarinefoodchain .Knowledgeofprimaryproductioninmarinewatersisprerequisiteforexploitationandmanagementoftheocean’slivingresources.Theprimaryproductioninmarin…  相似文献   

16.
1 INTODUCTIONWetlandcanperformenormousfunctionsinre sourceandenvironmentadjustment ,anditisoneoftheimportantecologicalenvironmentsthathumanbe ingsrelyon .Internationalcommunitieshavealreadypaid greatattentiontothewetlandresearch ,andsomeforeignershavedone…  相似文献   

17.
(苏亚芳)URBANINVESTMENTENVIRONMENTINFORMATIONSYTEMFORCHINASCOASTALPORTCITIES¥SuYafang(StateKeyLaboratoryofResourcesandEnvironmen...  相似文献   

18.
INTRODUCTIONInrecentyears,co culture (integratedculture )ofmarinespecies (algaeandanimals)hasreceivedgreatattention .Inco culturesystemthealgaeactivelyuptakeCO2 andthemetabolicwastes(suchasNH4 +,NO2 - ,NO3- etc)asnutrientsources,andreleaseO2 tothesurroundingenviron …  相似文献   

19.
INTRODUCTIONJohannes (1 965)firstshowedtheimportanceofprotozoaasremineralizersinmarineenvironments.Thesignificanceofprotozoainthefreshwaterfoodwebhasbeenknownforthepast2 0years.Protozoaisamainpredatorofplanktonicbacteriaandphytoplankton ,andalsoafoodsourceo…  相似文献   

20.
INTRODUCTIONH2,asanonpollutingfuel,seemstobeapreferablealternativeenergysourceofthefuture.Studyonbiohydrogen,coveringgenetic,physiologicalandbiochemicalaspects,hasbeenactivelypursuedinthelast100years,intheattempttoproducerenewableH2,particularlyrenewable“s…  相似文献   

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