Page 35 - 《水资源与水工程学报》2022年第1期
P. 35

!33 " ! 1 #                       & ' ( ) & * + , -                               Vol.33No.1
               2022 $ 2 %               JournalofWaterResources&WaterEngineering                 Feb.,2022

            DOI:10.11705/j.issn.1672-643X.2022.01.05


                         «jÔÕçè£xéê[/0dëf



                                                     HIJ, K L
                                      ( "†ST2U $%RDºST2U, 5' "† 330099)
                 = >: K÷øÛè¨È#AdªÏw«NÉÔ]¢、 \ÅÈ#AdªÏw¦É£wP8rÜ‡©§1‡r
                 jk, ¤L› 4 ¨:¢rqw¨È#AdªÏ, ]°½É(、 sQ+8(、 |}(ª7¦É, —˜³+Q[AdR
                 $LAdrOñAdªÏ MHDI。 y¿z‰: OñAdªÏ MHDI wò!hi³dZlkqwAdËΩà¨Ad
                 ËÎ,1960-2010 Iò!hiIÊNƕhiAdÀïàºâÂÃ,20 ü® 90 IÊ-Й8; INƕhiÀ
                 ï¾IÈAÂÃ, :É©!hi、 ò!É?、 ò!½?ŸhiÈAC†C;, IzƕhiÀïQ、 ªŽ—ßçA
                 drŽë, :É 4、11 ù™d; w 2010-2020 I, êöhi MHDI ªÏr Hurst vÏ*äy¿#^² 0.5, hidQ
                 sdÁ3÷。¤LrGHI~³KhiSYZD•ˆ¦Ì­。
                 ?@A: OñAdªÏ; $LAdªÏ; Q[AdªÏ; LO+,; ò!hi
                 BCDEF:TV11;TV213.4   GHIJK:A    GLMF:1672643X(2022)01003108

                          Applicationofmultivariatecomprehensivedroughtindex
                                             intheWeiheRiverBasin

                                                ZHUYuelu,ZHANGYang
                    (SchoolofHydraulicandEcologicalEngineering,NanchangInstituteofTechnology,Nanchang330099,China)
                 Abstract:Theconventionalunivariatedroughtindexisnotgenerallyapplicabletoallcases;however,
                 themultivariatedroughtindexhasthedisadvantagesofstrongsubjectivityandcontingencywhenweigh
                 ting.Inviewofthis ,fourtypicalunivariatedroughtindiceswereselectedtoconstructthecomprehensive
                 droughtindexMHDI,whichcancharacterizeboththemeteorologicaldroughtandhydrologicaldrought,u
                 singentropyweight,fuzzyevaluationandempiricalweighting.TheresultsshowthatMHDIcaneffectively
                 identifytypicaldroughteventsandextremedroughteventsintheWeiheRiverBasin.Thedroughtofthe
                 basinshowedanupwardtrendwithfluctuationsontheintergenerationalscale ,whichreachedthemaxi
                 muminthe1990s;ontheinterannualscaleitshowedadriertrendyearbyyear,inwhichtheJinghe
                 RiverBasin ,themiddlereachesoftheWeiheRiverandthelowerreachesoftheWeiheRiverplayedpri
                 maryroles ;ontheannualscale,thedroughtcharacteristicswassignificantinspringandautumn,among
                 whichAprilandNovemberwerethedriest.In2010-2020 ,thecalculationresultsoftheHurstcoeffi
                 cientofMHDIinallthesubbasinswerealllessthan0.5,indicatingthatthedroughtofthebasinwould
                 bealleviatedtosomeextent.Theresearchfindingscanprovideareferencefortheindustrialandagricul
                 turalproductionintheWeiheRiverBasin.
                 Keywords:meteorologicalandhydrologicaldroughtindex(MHDI);hydrologicaldroughtindex;me
                 teorologicaldroughtindex ;riskassessmen;theWeiheRiverBasin
                                                               <ï«ª‰      [1] , üéO¶]²¢Á#rOF, W
            1 ./01
                                                               ¼ZW“GFš, -ã/ÙAd–ÿ¬š­8。Ø
                 IPCC(InternationalPanelonClimateChange) ©     $.[®'YS2U 2021 I 9 ù™[fœGHy

                !"#$:20210629; %&#$:20211009
                '()*: 5'#&'¢01&234,-(20202BABL204066); 5'#Bj¢&2'xGH,-(GJJ180954); ./7
                        G¡*+,-(2017YFC1502701)
                +,-.: •£_ (1984-), <, 5ž:Q?, @A, zF, †GHIJK$LR$NO、 ˜¤ã"。
                ÁÂ+,: ` v (1990-), <, 5žØ¥?, @A, zF, †GHIJK$%$”ST。
   30   31   32   33   34   35   36   37   38   39   40