Page 65 - 《水资源与水工程学报》2023年第5期
P. 65

! 34 " ! 5 #                      & ' ( ) & * + , -                               Vol.34No.5
               2023 $ 10 %              JournalofWaterResources&WaterEngineering                 Oct.,2023

            DOI:10.11705/j.issn.1672-643X.2023.05.07


            Š‹Œ34t¬Ž†‡ð‘±YfUN’Gž


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                 EFGHI:X52   JK7LM:A    JNOI:1672643X(2023)05006109

                   Responseofnitrogenandphosphoruspollutionloadtodifferentland
                                   usepatternsinTaolinkouReservoirbasin

                                                                                  1
                                                                                               1
                                      1
                                                                   1
                                                       2
                         YANGNijuan,WANGXiaoyun,LIJianzhu,ZHANGTing,FENGPing
                  (1.StateKeyLaboratoryofHydraulicEngineeringSimulationandSafety,TianjinUniversity,Tianjin300350,China;
                       2.ChinaWaterResourcesBeifangInvestigation,Design&ResearchCo.,Ltd.,Tianjin300222,China)
                 Abstract:Nonpointsourcepollutionhasbecomethemaintargetofwaterpollutionpreventionandcon
                 trol ,thepolluantlossiscloselyrelatedtothelandusepatterns.Inthisstudy,thenonpointsourcepol
                 lutionloadinTaolinkouReservoirbasinwassimulatedbySWATnonpointsourcepollutionmodel.The
                 effectsofdifferentlanduseonnitrogenandphosphoruslossrateswerestudied ,andthechangesofnon
                 pointsourcepollutionloadlossundertwolandusepatternsin2014and2019werequantitativelyana
                 lyzed.TheresultsshowedthattheSWATnonpointsourcepollutionmodelwassuitableforthesimulation
                 ofnonpointsourcepollutioninthebasin.Inasinglelandusetype ,thepollutantlossraterankedasfol
                 lows:cultivatedland( Ⅱ) >grassland( Ⅲ) >residentialland( Ⅷ) >woodland( Ⅰ).Thecombi
                 nationofwoodlandcouldeffectivelyreducetheloadlossrateofsubbasins,comparedwithanysingle
                 landuse.Thepollutionyieldperunitareaofdifferentlandusevariedgreatly,thatofwoodlandwasthe
                 lowest ,whereasthatofcultivatedlandwasthehighest.Comparedwith2014,theareaofwoodlandin
                 creasedandtheareaofcultivatedlandandgrasslanddecreasedin2019 ,andtheoutputofTNandTP
                 loaddecreasedby34.43% and23.75%,respectively.Theresultsofthisstudycanprovideatechnical
                 supportforthewaterenvironmentpollutionmanagementoftheTaolinkouReservoirbasin.
                 Keywords:nonpointsourcepollution;pollutionloadofnitrogenandphosphorus;landusepattern;
                 pollutionloadloss;SWATmodel;TaolinkouReservoirbasin




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