Page 196 - 《水资源与水工程学报》2025年第2期
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1 2 & ' ( ) & * + , - 2025 $
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wheatandjointingtotasselingstageofsummermaize,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 [1925] ), ()u o~mgÌ>
º¨ÉÆÇPF4!, ÑJ|mQRÆ >dù·Po~mg Ì(standardizedsoilmoisture
ÇA1Ï5 [19] 。¥_ËÌ©´èSTÆÇ× index,SSI), @{¯¾úvÑUC=nI¶¦。
1JM7To~, Ýæ:"b?Twò;z=vö Y SSI * STI ÁÂ| , Ï:¯ÞÛvXÆcÂ
N [10] 。(n&>?d¼CÕH EFG+Ug, RA1¡FUCT。t, lB̸T()
´!ÑJ|muK¯LUCz.TúûÆO =5ED(6—8 t) Ttg[îÌ>, ;GúQÅ
B2。n{, KPB2ö÷TFNU cÃÉ© UCT;cÃ。, ()Ü8¥_ËÌTCÕ
, }JZÛTì. [1113] 。cÂF[|mJÑ HJEFGUæ¶, >ÏBgdvÀÌ>ä
A1(compoundagriculturaldroughtsandheatevents, x CADHEs TQ©P。
CADHEs) T;2Mwòz., AÏ¡n& ¥_ËÌÆ5_¡7û*QÑûÆÇTÎNn
¬J/;>ÑÝb [8] 。, &, °±CD|mG0、 ED«7B0TQc, yv
¾¿¥_ËÌCÕHJEFGü;qÃÅ CADHEs D;ñ。=5, ()cé5CÕHTr¯ Lc
TPQ©´ß«Xdhæb?。 ÃLc ÝDÃ(4 t 21 Ï—5 t 31 Ï) JEFG
STU, ±ú CADHEs HT()Ï5b, T¨;qÃ(6t 10Ï—9t 15Ï), KPÃu
Y]oUNcÂRA1ϯd¯ ÑJ|mA1T, ¡UC;clÝ
²、 g¯lÉÒÓ¯7 [1416] 。¨ÜÃQ [17] ó CADHEs T2M。()åºóΡ¥_ËÌCÕ
Î>dù·PÔIÓ Ì(standardizedprecipi HJEFGü;qÃÅ CADHEs Q©P´ß
tationevapotranspirationindex ,SPEI) Jù·PÑg «T½, ÛÅ<N;qÃX±+e CAD
Ì(standardizedtemperatureindex,STI), ų HEs T。KY±ä5d¯ÞÛTI,
CADHEs T
HQ©, ¢gTÑ|mc JűTG÷,ã', ©V¡(vn CAD
ÂA1(Mi-Mi) © 0.02/a aîZ, ÀÉþ 20 P HEs ûUTjP。
[18]
Q 90 T©UXYh; Ò»»Q T()êZ,
2 jkl()./QR
3_`T CADHEs fÉîbJ;÷»Å
[16]
ñTij;Mukherjee Q ¶ÁÂ 1983—2016 T 2.1 âãs\]
÷T¨Éé[þ$·kýZ|mb$g Ì ¥_ËÌ(32°25′N~34°35′N,114°55′E~118°10′E)
2
(selfcalibratingPalmerdroughtseverityindex,sc_ Æ5§æ`_]( e 1), S6æ 3.74 ¥ km。(
PDSI) JéÏXÆÑÌ>, ųÀ½¨ÉÒ n&v§Ë¸, ºH_]=Q±P³<ëK, ´
ÓÅ CADHEs TbN, ´XYb; ·VÆ ól]æÒ6ËÌ, v!IÆ;~。ý}åoæ
[15]
Q ù·PÔI Ì(standardizedprecipitati ç 54%Tn&, >?Ü!º!4], uCÕH
onindex,SPI) Jù·PÑg Ì(STI) äx CAD JEFGT>?LBn。56Æ5ý}åon,
HEs , Àóν´;îJ
÷ÒÓ, ´o~N%J>?UC( CÕHJEFG) *¥_
º 1961—2014T÷, ¨" CADHEs T
÷S6© ËÌ!]J4]Fì, °±é½TêN。¥
(0.02~0.03)/10a TagXYb。 _ËÌTTËÔI.æ 845mm, TËÆÑæ