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1.
PrefaceAfter 3yearsofdevelopmentinthefieldoflandscapeecologyintheAsia Pacificregionssince 1 998,muchprogresshasbeenachievedintheory,methodologyandapplication .DuringSept.2 2— 2 5,2 0 0 1 ,theancientLanzhouCitysawmorethan 1 6 0landscapeecologistsfrom 1 5countriesandregio…  相似文献   

2.
IntroductionThebrassylicacidmanufacturingwastewatercontainshighchemicaloxygendemand(COD)concentration3000—12000mg/LanditsBOD5/CODisamong04—05Meanwhilethewastewatercontainshighsulphateconcentrationabout13000mg/LanditspHvalueisonly1—2Achemicalcompanyappliedneutrali…  相似文献   

3.
Sincetheinternationalgeophysicalyear(IGY,1957—1958),Antarcticahasbeentheobjectofintensivescientificinvestigationbyteamsofscientists...  相似文献   

4.
IntroductionAnatmospheredispersionfieldexperimentwasdoneonthecoastalsiteofnuclearpowerplant (NPP)intheeastpartofChinaduring 1995— 1996 Thecontentofthisexperimentincludes:hourlyobservationofwindandtemperatureonthetowerof10 0m ;Observationofsurfacewindandseeandl…  相似文献   

5.
IntroductionAsoneofthemain pollutionsourcesinChina ,thetextiledyeingandfinishingindustryannuallycreates 9— 12× 10 8m3wastewaterwithhighorganicstrengthandcolour(Li,1999b) .Dyesarethemostimportantclassofsyntheticorganicchemicals.In general,conventionalbiologicaltre…  相似文献   

6.
IntroductionIncreasedagriculturalproductivityoverthepast50—100yearshasledtoincreasedatmosphericconcentrationsofCO2,CH4andN2O.Thesegases,alongwithadditiontracegasspecies(greenhousegases)arecausinganincreaseinglobaltemperaturesandozonedepletion(Aselman…  相似文献   

7.
Distribution of various aluminum fractions in surface water of the Le An River ResearchCenterforEco-EnvironmentalSciences,Beijing100085,ChinaAbstract—Totalcon...  相似文献   

8.
LCAapproachtotheautomotiveglasrecyclingVanniBadino,GianLucaBaldoThepaperpresentedattheIISETACWorldCongres,Vancouver,5—9Nove...  相似文献   

9.
IntroductionPolyaluminiumchloride(PAC) ,akindofinorganicpolymerflocculant,iswidelyusedinwaterandwastewatertreatment.InordertoincreasethecoagulationeffectofPACandimprovethequalityofPACproduct,itisnecessarytoraisethedegreeofpolymerizationofPAC .Generally ,t…  相似文献   

10.
AerosolcompositionatacoastalmonitoringsiteinHongKong—initialresultsK.S.Lam,L.Y.Chan,Z.L.ChengDepartmentofCivilandStructuralEn...  相似文献   

11.
Amethodforcalculatingthetotalozoneamountintheclearskies¥BaiJianhui;WangGengchen(InstituteofAtmosphericPhysics,ChineseAcademyo...  相似文献   

12.
IntroductionA .tatarinowiiScott,aperennialimmergedherbinwetlands ,belongstoAraceae ,Acorus.ItsflorescencewasfromApriltoJulyanditsrhizomewasfragrant.ItisdistributedovertheSouthpartofChina ,EastIndian ,VietnamandNorthThailand .Itwascommoninwetlands ,brooksorth…  相似文献   

13.
污染防治的会计学AccountingforPollutionPrevention¥AlienL.WhiteAbstract:IfaccountingpracticesmisrepresentthetrueProntallilityofpreventi...  相似文献   

14.
Introductionα naphthaleneaceticacid (NAA)isanimportantplantgrowthregulatorusednotonlytopreventthepreharvestdropofapplesbutalsoasafruitthinningagent (Worthing ,1991) .MuchresearchworkabouttheeffectofNAAonplanttissues(Speer,1993;Hideyoshi,1993;Prasd ,1994 ) ,plantgrowtha…  相似文献   

15.
ResearchCenterforEco EnvironmentalSciences,ChineseAcademyofSciences (RCEES CAS ) ,formerlyInstituteofEnvironmentalChemistry ,ChineseAcademyofSciences ,wasfoundedin 1975 .In 1986,itwasamalgamatedwithResearchCenterofEcology ,CAS ,andwasrenamedasResearchCenterforEco E…  相似文献   

16.
加利福尼亚谷地与大烟雾CaliforniavtheBigSmog¥Abstract:California,particularlyLosAugeles,encapsulatesAmerica'ssuccessesandfailures:thecari...  相似文献   

17.
UnitedNationshavementionedthatover30Euro pean,CentralAsianandNorthAmericancountrieshaveagreedapactextendingthepublic'srighttoknowaboutchemicalwasteandtoxicpollutantsintheirareas.Afterovertwoyearsofnegotiationsthedraftagree mentwillcoverthedisposal,sto…  相似文献   

18.
ResearchFields :AquaticEnvironmentalQualityItistodevelopadvancedsciencesofwaterqualityprocessandhightechnology ,studythemechanismsofwaterqualityprocessofnaturalwatersandwatertreatment.Aswellastodevelophightechnologyandtechniquesforwatertreatment,soastop…  相似文献   

19.
全球工业事件与事故IndustrialIncidentsandAccidentsintheWorld¥Abstract:Industrialincidentsandaccidentsusuallyincreasealongwithindustrial...  相似文献   

20.
农业活动引起的污染   总被引:1,自引:0,他引:1  
农业活动引起的污染联合国环境规划署PollutionDuetoAgriculturalActivities¥(UNEP)EARTHWATCHAbstract:Theagriculturalproductionneedsasoundenvironmen...  相似文献   

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