,thustherateofsewagecollectionisdifficulttoberaised,%,.(3)Forthegreatcoverageofagriculturalnonpointpollutionsourceandthedifficultytocontrolbyengineeringmeasures,itcan’,therearealargenumberoffarmland,nursery,orchardandvegetablegreenhousesintheeast,,alotofnutrients(N,P,K,andsoon)enterriversfromthosefieldsthroughsurfacerunoff,andgetintoDianLakeatlast,makingagriculturalpollutionthesecondlargestpollutionsourceofDianLake.(4)elerationofurbanizationofKunmingcity,thebuilt-,,ordinglytoacertainextent.(6)Asthelastandmostimportant,ecologicalrestorationisnecessarytothefinalpurificationofDianLake,,,,controllingandoptimizingurbandevelopmentlayout,distinguishingtheorderofimportanceandurgencybyratioofpollutionloadandthedifficultyofengineeringmeasuresmustbedone,,suchascontrollingagriculturenonpointpollutionsourceandurbannonpointpollutionsource,acceleratingwaterdiversionproject,Enhancingsupervisionandmanagementsystem,andsoon,:DianLake,LakePollutionco
滇池环境治理与保护规划研究 来自淘豆网m.daumloan.com转载请标明出处.
