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EstimationofEmissionLoadofAgriculturalNonpointSourcePollutioninTypicalRegionofTaihuLakeUpstreamAreaZHOUJun1,ZHAIKang2,ZHOUYou1 (1.ChangzhouAcademyofEnvironmentalScience,Changzhou,Jiangsu213022;2.ChangzhouEnvironmentalInformationCentre,Changzhou,Jiangsu213022)Abstract Basedoncollectingdataandselectingemissioncoefficients,emissionloadsofvarioustypesofpollutionsourcesi.e.,agriculturalcultivating,livestockandpoultrybreeding,aquaticfarminganddomesticpollutionwereestimatedinTaihuLakeupstreamarea.Theresultsshowedthatdomesticpollutionemissionloadwasthemostserious,howeverlivestockandpoultrybreedingwasthemainsourceofTPpollutionemissionload.Onthisbasis,thetargetedtechnicalmeasuresforpollutionpreventionandcontrolwereproposed,asascientificreferencetoregulateandcontrolwaterenvironmentofTaihuLake.Keywords TaihuLakeupstreamarea;Agriculture;Nonpointsource;Emissionload;Estimation

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Landusetype COD TN TP

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Dryland[13] 35.00 7.59 0.643é

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Cattle[13] 367.08 98.70 19.45M

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Pollutioncategory COD TN TP

Rural[13] 7.15 1.78 0.14åæ

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Pollutionloadtype COD TN TP

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523 205 11¶·

340 89 7!ý#Ï

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M

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