Page 44 - 《水资源与水工程学报》2024年第5期
P. 44
!35 "!5 # & ' ( ) & * + , - Vol.35No.5
2024 $ 10 % JournalofWaterResources&WaterEngineering Oct.,2024
DOI:10.11705/j.issn.1672-643X.2024.05.05
7Áõ`ôõhià÷v2³=>;<XY
1,2 1 1
[\] , !^_ , `/a
(1. 6ħ».T AR§».T, ôJ 6Ä 330099;2. dGÈ4ʧ»·z!|, IJ dG 725000)
H I: @þc!ªhwxä" zffN, "ÆAB 1960—2020 vc¿ò/çU@/Í, C'.
ä¦2.>ð°è, ¢x'ABzfû P、 çU¢ D、 çU1wÀ56 LEåB, Îw D -P,
2
2
LE-P»¨¿, ò7¦2._}Øzfû; %çU Zñò#}w, Îé}wQðIçzffN
2
uv" 。%<°±²o: 'B P[ò7B D、LEA·£{Y¨¿, ÛÔ>»{Ò«¿ R ½¢x@
2
0.93 ä 0.83; é" gwO, ò7"øYV" 2021 v{çU Z@ 1.69, ,ðl{ABzfÂj@“ +f”,
³°ª[^~ABÓÍ8è, " k±¢£。%<>Ê*@zfªúÙ¨y¶{。
JKL: ABzf; ¦2.>Ê; }w#; 1wÀ56; ¢; q5ÄÏ
MNFOP:P333;P426.616 QRSTU:A QVWP:1672643X(2024)05004006
DroughtanalysisoftheupperWeiRiverbasedonstatisticsanddynamicstheory
1,2
1
ZHUYuelu ,LIGuangcan,LUODonglan 1
(1.SchoolofHydraulicEngineering,NanchangInstituteofTechnology,Nanchang330099,China;
2.AnkangJiuxingConstructionEngineeringCo.,Ltd.,Ankang725000,China)
Abstract:Tomoreaccuratelyidentifyandpredictdroughtevents,thisstudyusesthelongseriesofdaily
runoffintheLinjiacunHydrologicalStationfrom1960to2020asdatainput.Bycombiningstatisticsand
dynamicsmethods ,wecalculatedhydrologicaldroughtprobabilityP,runofffractaldimensionD andrun
2
offLyapunovexponent LE,andestablishedfunctionalrelationshipsforP-D,P-LEtosolvethe
2
droughtprobabilityfromtheperspectiveofchaoticdynamics.Furthermore ,therunoffZindexsequence
isusedtoreconstructthephasespace,withinwhichthefuturedroughteventsarepredicted.Theresearch
resultsshowthatthestatisticalparameter PhasagoodlinearrelationshipwiththechaoticparameterD 2
2
andLE,withregressionequationR valuesof0.93and0.83,respectively.Withinthepredictioninter
val,therunoffZindexfor2021ispredictedtobe1.69bythechaoticpredictionmodel,correspondingto
ahydrologicaldroughtstateof “nodrought”.Thisconclusionisconsistentwiththeactualhydrological
situation,demonstratingagoodpredictiveperformanceofthemodel.Thisresearchcanprovideanewap
proachforthestudyofdroughttheory.
Keywords:hydrologicaldrought;dynamicsscheme;phasespacereconstruction;Lyapunovexponent;
fractaldimension;theupperWeiheRiver
f、 xyzf、 ABzfåfN, ô.l{@j~1
1 ./01
zf, Ë: à!ËA(standardizedprecipi
[7]
zf'@()g¼&{+,.F, Ç# tationindex ,SPI) 、 à!sGW(stand
[8]
23=ù、 9â¢d、 Çȧyu»C%&{ ardizedsoilmoistureindex,SSI) 、 çU Z [9]
&+ [13] 。Ëì!ªwx9¨gVSzfC å。ðzfɬ²w{Ð, éj~1zf
Iç>ézfäÌ, ¨ÂçÉX%<¨Ó{æ /ÍÄ, %<º{çèzfw
$ [46] 。É_], q¤zf¢£Á*_á¬z xAB[ᬩè
ìi4{ [1013] , ÊË:
!"#$:20240509; %$:20240630
'()*: !"+,-./0)*(52069014); !"+,-./0v/0)*(52309001)
+,-.: q2C(1984—), H, ô¨.Ä9, :;, à_§»P, 3P, ÞßfAB[ADECXiÛ«>E{%<。