Page 58 - 《水资源与水工程学报》2025年第1期
P. 58
!36 "!1 # & ' ( ) & * + , - Vol.36No.1
2025 $ 2 % JournalofWaterResources&WaterEngineering Feb.,2025
DOI:10.11705/j.issn.1672-643X.2025.01.07
's MIKE11-Ecolab 3fO4Á56789MN
1,2 1,2 1,2 1,2
,T@ , U V , $-# , IPW
(1. E9a0 yZ±²./c]^Ù8QÔ:?@pqr, ¡Á FU 210098;2. E9a0 hk0G, ¡Á FU 210098)
> ?: Æ}ɯ
y
/|~74ú¼¨Q¼µ¶y
/74L+rÅ{{«, °í0¸cZh
kí0iº®/, Ö¡ÁfØEAB\, eLy
/|~csZQ、 ÊíêÆÇKK)sÑ
µ¶à·VWMNQ, YØcsѵ¶Û{ MIKE11-Ecolab ¿/iº, 6ÒL+rÅE¶y
/
|~{L+{«。AB®«S¤: y
/|~cZ、 Ê、 é01Øüí\S¼ü/j)*sst, Z
、 ÊJ¤¥¾/{Ñy
/|~MND~za, Zaé 20%Py
/|~Bʯ 53.68%, â
50%ZJ¤¥Py
/|~y 26.48%, ¾/{Ñé 50%Py
/|~y 16.43%。ABª
«E¶45ZSL+qq1èéê。
1@A: Z; y
/|~; y
/74L+;MIKE11-Ecolab ¿/iº; ØE; ¡Áf
BC<DE:X522;S959 FGHIJ:A FKLE:1672643X(2025)01005409
Attributionanalysisofdissolvedoxygenanomaliesbasedon
MIKE11-Ecolabrivernetworkmodeling
1,2
1,2
1,2
1,2
WANGZhihao ,PANGYong ,ZHANGLiting ,LIUJiabei
(1.KeyLaboratoryofIntegratedRegulationandResourceDevelopmentonShallowLakes,MinistryofEducation,
HohaiUniversity,Nanjing210098,China;2.CollegeofEnvironment,HohaiUniversity,Nanjing210098,China)
Abstract:Statisticalmethodswerecombinedwithmathematicalmodellingtoanalyzethecausesoftheab
normalchangesindissolvedoxygenconcentration ,andtheeffectsofrestorationmeasuresondissolvedox
ygenanomaliesinwaterenvironment.TakingtheYanheRiverinJiangsuProvinceasthecasestudy,we
analyzeddissolvedoxygenconcentration ,relatedwaterqualityfactors,andrainfalldatausingPearson
correlationanalysis ,soastoidentifythemaininfluencingfactors.Then,thecorrespondingMIKE11-
Ecolabcoupledmodelwasestablishedtocomparetheeffectsofdifferentrestorationmeasuresonthedis
solvedoxygenconcentrationoftherivernetwork.Theresultsshowedthatdissolvedoxygenconcentration
wassignificantlyandnegativelycorrelatedwithwatertemperature ,rainfall,permanganateindex,andbi
ochemicaloxygendemand.Watertemperature ,stormwaterrunoffpollution,andphotosyntheticefficiency
hadthegreatestimpactondissolvedoxygen.Withanincreaseof20% inwatertemperature,dissolved
oxygenconcentrationdecreasedby53.68%;areductionof50% instormwaterrunoffpollutionledtoan
improvementof26.48% indissolvedoxygenconcentration ;anincreaseof50% inphotosyntheticeffi
ciencyimprovedthedissolvedoxygenconcentrationby16.43%.Thisstudycanprovideareferenceand
theoreticalbasisforwaterecologicalrestorationinrivernetworkareas.
Keywords:waterquality;dissolvedoxygenconcentration;dissolvedoxygenanomalyrestoration;
MIKE11-Ecolabcoupledmodel;theYanheRiver;JiangsuProvince
!"#$:20240625; %$:20240830
'()*: !"wx#0%»(3(51879070)
+,-.: )(2000—), K, Ç~ ÊN, ÈPABS, ABÔhkÆcMN³´。
qr+,: - (1958—), K, Ç~.FN, OP, QR, OPSTU, ABÔhkÆcMN³´。