Page 196 - 《水资源与水工程学报》2025年第2期
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                 wheatandjointingtotasselingstageofsummermaize,withmaximumconsecutivedaysof13and23d,
                 respectively.TheintensityofCADHEsduringthesetwostageswasthehighest,withnumerousextreme
                 values,reachingamaximum of5.68and6.00,respectively.ThefrequencyofCADHEslastingfora
                 maximumof5consecutivedaysormorewasextremelyhighandcontinuedtoincrease ,withmaximum
                 consecutivedaysof12and21d,respectively.Thevariationinthecorrelationbetweentemperatureand
                 soilmoistureplayedadominantroleintheincreaseofCADHEs,followedbytemperaturechanges.These
                 findingscanprovideasupportforprecisewaterresourcesallocationandeffectivefieldmanagementstrate
                 gies ,aswellasguideaugmentationsinirrigationschemestoaddressCADHEsrisks.
                 Keywords:compoundagriculturaldroughtsandheatevents(CADHEs);standardizedtemperature;soil
                 moisture;drivingfactor;Copulafunction;HuaibeiPlain
                                                                   ‰}5ZkT()RÁ( óô|  SPI、SPEI
            1 ./01
                                                               QÆO|m ù        [1925] ), –()u o~mgÌ>
                 º¨ÉÆÇ„PF4!, ÑJ|mQˆRÆ                         >dù·Po~mg Ì(standardizedsoilmoisture
            ÇA1Ï5Ÿ—        [19] 。¥_ËÌ©´èSTÆÇ×                 index,SSI), @{¯¾úvїUC=nI†¶¦。
            1JM7To~, Ýæ:"b?Twò;z=vö                            Y SSI * STI ÁÂ| , Ï:¯ÞÛvXÆcˆ
            N [10] 。(n&>?d¼CÕH EFG+Ug,                       RA1¡FUCTš›。št, lB̌¸T()
            ´!ÑJ|muš›K¯LUCz.TúûÆO                             =5ED(6—8 t) Ttg[îÌ>, ;Gú—QÅ
            B2。n{, KPB2ö÷TFNU cÃÉ­©                            UCT;cÃ。™š, –()Ü8¥_ËÌTCÕ
            ‘’, }JZÛTì.         [1113] 。cÂF[|mJÑ             HJEFGU杶, Ÿ>ÏBgdvÀ’Ì>ä
            A1(compoundagriculturaldroughtsandheatevents,      x CADHEs TQ©„P。
            CADHEs) T—;‰2Mwòz., A”Ï¡n&                            ¥_ËÌÆ5_¡7û*QÑûÆÇTÎNn
            ¬­—˜J/˜;>Ñݎbš›                 [8] 。™š, Ž        &, °±CD|mG0、 ED«7B0TQc, yv
            ¾¿¥_ËÌCÕHJEFGü;qÃÅ CADHEs                          D;ñ。=5š, –()cé5CÕHTr¯ Lc
            T„PQ©´ß«™œXdhæb?。                                 ÁLc ÝDÃ(4 t 21 Ï—5 t 31 Ï) JEFG
                 STU, ±ú CADHEs H„T()Ï5b›,                     T¨;qÃ(6t 10Ï—9t 15Ï), KP„Ãu
            ‘Y]oUšNcˆRA1”ϯ„d¯›Ÿ                              ÑJ|mA1T—„‚, ¡UC;clݑ
            ²、 œg¯lɚ›ÒÓ¯7             [1416] 。¨ÜÃQ  [17] ó   CADHEs T2M。–()åºóΡ¥_ËÌCÕ
            Î>dù·PÔIӁ— Ì(standardizedprecipi                 HJEFGü;qÃÅ CADHEs Q©„P´ß
            tationevapotranspirationindex ,SPEI) Jù·PÑg        «™œT†½, ÛÅ<N;qÃX±+e CAD
             Ì(standardizedtemperatureindex,STI), ų‘          HEs Tš›。KY±ä5d’¯ÞÛTI‚ƒ,†
            CADHEs T„…H„Q©, —’¢gTÑ|mc                         JÅ±žTG÷,†ã', ©V¡(vn CAD
            ÂA1(Mi-Mi) © 0.02/a aîˆZ, ÀÉþ 20 P                 HEs ûUTjP。
                                            [18]
            Q 90 T“©UXY›h; Ò»»Q                T()êZ,
                                                              2 jkl()./QR
            3_`T CADHEs f’ÉŸîb›J—;÷»Å
                                 [16]
            ñTij;Mukherjee Q        ¶Á‘ 1983—2016 T           2.1 âãs\]
            ÷T¨Éé[þ$·kýZ|mŽb$g Ì                                   ¥_ËÌ(32°25′N~34°35′N,114°55′E~118°10′E)
                                                                                                        2
            (selfcalibratingPalmerdroughtseverityindex,sc_    Æ5§æ`_]( e 1), S6æ 3.74 ¥ km。(
            PDSI) JéÏXÆÑÌ>, ųÀ†½‘¨ÉÒ                         n&v§Ë¸, ºH_]=Q±P³<­ëK, ´
            ÓÅ CADHEs TŽbN, —’´XYb›; ·VÆ                       ól]†æÒ6ËÌ, v!IÆ;~。ý}åoæ
              [15]
            Q    Ÿ ù·PÔI Ì(standardizedprecipitati            瑐 54%Tn&, >?Ü!º!4], uCÕH
            onindex,SPI) Jù·PÑg Ì(STI) äx CAD                 JEFGT>?LBn。56ŸÆ5ý}åon,

            HEs , ÀóΆ½´—;ŸîJ…÷†‡ÒÓ, —’                        ´o~N%J>?UC( CÕHJEFG) *¥_
            º 1961—2014T÷, ¨" CADHEs T…÷S6©                    ËÌ!]J4]Fì, ™š°±é½T“êN。¥
            (0.02~0.03)/10a TagXYb›。                           _ËÌTTˊÔI.æ 845mm, TˊÆÑæ
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