Page 15 - 《水资源与水工程学报》2024年第5期
P. 15

!35 "!5 #                         & ' ( ) & * + , -                               Vol.35No.5
               2024 $ 10 %              JournalofWaterResources&WaterEngineering                 Oct.,2024

            DOI:10.11705/j.issn.1672-643X.2024.05.02


                             ¥¦8§¨©¦;$ª«g¬FG

                                             ———VWXYZ[\]


                                                           1
                                                1,2
                                                                     1
                                         ./0 , 12) , !34 , 567                  1
             (1. e÷ž§e. Œ-§».T, wx e÷ 116024;2. wxªARASy -'%<T·z{¥!|, wx }8 110006)
                 H I: AvA9~¦leõ~gŽk%›‰gš{zWc€, @Ÿ°~z·»ðŽk、 ‚{‚ƒ, •ƒU
                 5Av@Êó$õ~gº›à»i{Žký\, Î/ÁɄMN-'~zYZ…_, Ÿ°ÐÑ~zMNiõ
                 ~gŽk、 ‚{¼íj~€, @AvOE†‡ˆžúÙBC。%<&É: éŽkz·»Q, ¹î‰
                 '†{‚ƒ, ~zÕ TN{}1mœ 2.99%, ƈ‰A¢T&î‰'†ŠÁ&={MN“‹Œ,TN{}1…†
                 Û«; ¹'†{‚ƒÈé·¸‚(OP) ?+¸‚(IP) {íjÊ, ³Êúà‚{=k·k­, Ãz·»
                 Q$É、 ‚?²S${ɬ。„8, ÐÑ{~z'†·RÁŽkQ·1…{Pö, ·Áõ~g’k=
                 cäŽ_=ù2{ú™。
                 JKL: Av; õ~g; Žk; ÐÑ~z; ž­K
                 MNFOP:X524   QRSTU:A    QVWP:1672643X(2024)05001109
                Morphologyofnitrogenandphosphorusduringsedimentdryingperiodin

                         waterlevelfluctuationzone: AcasestudyoftheBiliuheReservoir
                                              1,2
                                                                                         1
                                                                      1
                                                           1
                                HANDongning ,XUShiguo,LIWeijia,CHENXiaoqiang
                   (1.SchoolofInfrastructureEngineering,DalianUniversityofTechnology,Dalian116024,China;2.LiaoningWater
                       ConservancyandHydropowerSurveyandDesignResearchInstituteCo. ,Ltd.,Shenyang110006,China)
                 Abstract:Sedimentsinthewaterlevelfluctuationzoneofthereservoirundergofrequentdryingand
                 floodingprocessesduetowaterlevelchanges.Inordertoinvestigatetheeffectofdryingprocessonnitro
                 genandphosphorusinthesediments,thestudyanalyzedsedimentsamplescollectedatdifferenteleva
                 tionsinthewaterlevelfluctuationzoneoftheBiliuheReservoir.Subsequently ,adryingsimulationex
                 perimentwascarriedoutbasedonthefieldsurveytoexplorethecharacteristicsofnitrogenandphosphor
                 usmorphologychangeinthesedimentsofthewaterlevelfluctuationzoneduringthedryingperiod ,soas
                 toprovideareferenceforthemanagementofendogenouspollutioninreservoirs.Theresultsshowedthat
                 TNcontentreducedby2.99% undertheinfluenceofdenitrification;however,astheconditionsunder
                 whichdenitrificationoccurredweredestroyedbywaterevaporation ,theTNcontentgraduallystabilized.
                 Affectedbymineralization ,therewasamorphologicaltransformationoforganicphosphorus(OP)toinor
                 ganicphosphorus (IP),whichimprovedthebioavailabilityofphosphorus.Moreover,anenrichmentof
                 nitrogenandphosphorustothesurfacelayerwasseenduringthedryingperiod.Therefore,sustaineddr
                 yingconditionisconducivetotheremovalofexcessnitrogenfromthesediments,whichinturncontrib
                 utestoplantgrowthandprimaryproductivityinthewaterlevelfluctuationzone.
                 Keywords:reservoir;waterlevelfluctuationzone;sediment;sustaineddrying;physicochemicalproperty






                !"#$:20240301; %&#$:20240527
                '()*: !"+,-./0)*(42077348、42377412、51879031)
                +,-.: r‘s(1999—), 4, ;;>t9, u;%<=, %<>?@AvAXh。
                /0+,: ^;!(1958—), H, ;;>t9, :;, MN, :;=OP, ÞߍfXhAR%<。
   10   11   12   13   14   15   16   17   18   19   20