滇池污染的成因及其治理新方案

:2002208221.:2001NG63:(19422),,1966,,2,60,5,,(,650223):,:,,,,,,,,,,,,X524,,,,40,[1],,20001112m,2002113,014m1111(1),,,,,2120106;,(2),80%,,,,(3),7105m3,6,60%,40%28104m3,,,,,,,[2]510108m3,(1):1Tab11MainpollutioninputloadfromoutsideenvironmentintheDianchiLakeTNTPBODCOD(tö)(%)(tö)(%)(tö)(%)(tö)(%)(tö)(%)135333232346816251115511825390111843888132810068147931142041744199089192440111741633100471310045518100916110020878100120033GEO2INFORMATIONSCIENCENo11Mar1,200323Tab12RelationshipbetweenthemaininputloadofthetotalwaterpollutionsourcesandthetotalpollutionloadreceivedintheDianchiLakeTNTPBODCOD(%)(%)(%)(%)(%)(%)(%)(%)(%)(%)414116510316714512313311410315712217510316412310319316515417913314111381113189171114101611181011161051961641881251761051571761622178144019291631112118401537144712401426129166195104163132182162152121412512241317153017211532112917211318121003618100721210070,210092151008517312123,199391,32%,TN6818%TP5511%BOD9011%COD8813%,,[3]2,7,3618%,TN7212%,TP7012%,BOD9215%,COD8517%780%7,,,,,,,,,,,,,,,80%,,,,,,34,(4)3,,,,,,,,,(5),,,,,,,,23,34,,,112(1)90%(1):,,,,,(2),,,711:1Fig11SketchmapofthedistributionandmovementofthepollutantsinDianchiLake()2,3:;,,,115109m3211(2):,,ÌË;,ËÊ,,,,,,2121681m,1887m,2Fig12SketchmapofthenewmeasurestocontrolthepollutionintheDianchiLake()1840m-16km,47m,,-,,,,,,,80%,,,,,(1),,,,,,,,,,,,(2),81200380%;,;;,,,;(015m),,,,23km,,,,,,,,,,415108m3,7176108m3,120m3ös,,,,,3,,60m3ös,,,60m3ös,(40m3ös),100m3ös,10,100m3ös,3,,,;,,,,,,,,;,;;;,(3),(115),,,,,6:;;;;,,35;,,,,,,,Ê,,,,,1115109m3,3(1),,,,,911:,,,,,,,,,,,,3(2),,4050cm,,,4050cm,,,,,,,(3),,,34km,,(4),,,;,,;,,,,,80%,;,,;;,,;,ÌË,,,ËÊ,,,[1]12010112010119971[2]1111991,(1)1[3]1111991,(4)1[4]1111993,(3)1[5]1111991,(4)1[6]1112000()1CausesofPollutionoftheDianchiLakeandNewControlMeasuresPENGYongan,ZHUTong(YunnanInstituteofGeography,YunnanUniversity,Kunming650223)AbstractTheoutletofwaterbodyofDianchiLakeislocatedinthesouthernarea,butthemainpollutionloadisinthenorthernarea1TheflowofDianchiLakeisalwaysrushfromNorthtoSouth1Becauseoftheslowlakeflow,over90%ofthepollutantsinthewastewaterdepositonthebottomofDianchi022003Lake1HencetherearemainlytwofactorscausingthepollutioninDianchiLake1Oneistheslowlakeflow,theotheristheintrudingofthepollutedwater1Therearetwowaystodealwiththepollutionsituation1Oneistospeedupthelakeflow,theotheristostopthepollutedwaterfromintrudingtothesouthernlake1InlightwiththesituationthatthenorthernlakepollutedthesouthernlakeoftheDianchi,thenewsolutionidentifiedistochangetheoriginaloutletofDianchiLakebydiggingupanewcanalandputtingDianchiLakeflowbackwardstothenorth1Bysodoing,themainpollutionloadcanbeclosedtothenewoutletandkeptawayfromtheoriginalone,partofthepollutedwaterinKunmingcitywillnotdirectlydischargeintotheDianchiLake1EvenifthepollutedwaterdischargedintotheDianchiLake,itispossibletoletitrapidlyflowoutofthenorthernDianchiLake1Inaword,theelevatedpotentialofhighwaterpressurecaneffectivelypreventthesouthwardintrusionofpollutionloadfromnorthernpart,offeringabasicsolutiontothepollutionproblemsoftheDianchiLake1KeywordsDianchiLake,Causesofthepollution,Newcontrolmeasures2003,,20019ISSN,2002,,,2003,:822919.:QR1706,:00344,80():100101917:020000620908911629720033121: