Page 205 - 《水资源与水工程学报》2025年第2期
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                 thedroughtfrequencywasbranching-floweringperiod(76% -100%)>flowering-harvestingperiod
                 (48% -94%)>germination-branchingperiod(26% -74%).Spatially,thelevelandfrequencyof
                 droughtdecreasedfromnorthtosouth,withthehighestlevelandfrequencyinTongxinStation,andlow
                 estinJingyuanStation.Theinfluenceofdrivingfactorsonthegermination-branchingperiodand
                 branching-floweringperiodshowedprecipitation>cropwaterdemand>averagetemperature>sunshine
                 hours>relativehumidity>averagewindspeed ;butprecipitation>cropwaterdemand>averagetempera
                 ture>relativehumidity>averagewindspeedontheflowering-harvestingperiod.
                 Keywords:potato;cropwaterdeficitindex;pathanalysis;agriculturaldrought;climatechange;cen
                 tralandsouthernNingxia
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            #’   [1] 。-ETEG½LB>?Ü!º!4]v                        Ï<M 55% ~60%Tz.ÕI。Zhao Q            [15] u ^
            n, º 2011—2021T ÷ L B S 6 • – Í Î 9¥               Ï CWDI ()‘Õ¥·n&CÕHº‰};qÃT
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            ŏz.bcTúû™œ               。                        CWDI XƑðñËÌyFGü;qÃT|m¶
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                                              [6]
            itationevapotranspirationindex ,SPEI) 、 |m Ì       XæŽb。
                              [7]
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            ÅUC|mT°O†e‰@。æš, NP()žÈÉ                           Y™()F¡;G, Qxu‰¡-EEG½TFú
            ‘ÁÂUCI†˜éTF[|m ù。¶b,Li Q                    [9]    ()¦o°š¢。ÆÇ„P¡F[|m°±XYš
            lّ=5UCӁ—J;qÃÅÔI.TI†á                             ›。™š, –—Ü} CWDI Uæ|m ù, âk†½
            }î(waterdeficitratio,WDR)  ù,  ©†½¤jF              ÆÇ„PF4!-E!4]vnEG½‰};qÃ
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            cropwaterdeficit,RFCWD), %Y‘Ö›¿"I]º
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            1979—2018 T÷|mjPTˆZij;Guo Q               [11] Ÿ
             UCI†œá Ì(cropwatersurplusdeficitindex,            2.1 äåî7
            CWSDI) ¾¿‘ð,ËÌFGº‰};qÃE·c                             ÆO‚ÔÜ}‘-E!4].、 }、 ·Ì、
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            6žVUC‰};qáI†sǜîNT‚                             2020 TT^ÏÀ’Ì>( e 1), Ú«ÔI.(P)、
            .Œ, ­©Þ·Ñ—ü;qÃT|m$g。                              X Æ Ñ (T )、X < Æ Ñ (T )、Ë Š Æ Ñ
                                                                           max
                                                                                              min
                 UCI†á} Ì (cropwaterdeficitindex,              (T )、 ÏЄÌ(sunshinehours,SH)、 ˊja
                                                                 mean
            CWDI) Û‚ƒ‘UCӁ—、 ÔI.©o~I                         (windspeed,WS)JF¡mg(relativehumidity,
   200   201   202   203   204   205   206   207   208   209   210