Page 76 - 《水资源与水工程学报》2022年第5期
P. 76

! 33 " ! 5 #                      & ' ( ) & * + , -                               Vol.33No.5
               2022 $ 10 %              JournalofWaterResources&WaterEngineering                 Oct.,2022

            DOI:10.11705/j.issn.1672-643X.2022.05.09


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                               bcd , e f , #./ , #gh , 7ij , %kl
                        (1. ã==ØP& VG%&&Y, ã= rE 410081;2. ã==ØP& VG%³PQR‘W
                                           G£ã=½Jefgh, ã= rE 410081)

               C D: 'Ž 1956-2020 õYZãýÓÏC©T fÖC©QR, ×£ Mann-Kendall #g¡STCIUXs¦§
               „YZããIýÓÏ{eC° Ú=Êe{e。ÉßÎà: ýÓÏõ{eC°Mg›tŠLÁ(P <0.05)。WÚÔ
               1 ãä, ÚÔ 2、3、4  õ’C°SNЊ— 0.68、1.04、1.61m, õ°ëC°SNЊ— 0.35、1.14、1.78m, ÚÔ 5  
               õ’C°、 õ°ëC°SN„·c 24.97、30.50m, õ°¸C°‹¬ÐŠ(18.09、18.84、19.32、20.26、20.87m); ýÓ
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               ¬„·, OC¬A’C°…°¸C°‹¬ÐŠ, ÚÔ 5  {eC°ÐŠ— 2m¶t; CIUXsyýÓÏ{eC° 
               ¦§HÜÄõÎz–‚¤ {e, ÐÑCÒ\C¾, ýÓÏ{eC°ÄCõÄ、 OC¬„·, ACõÄC¬Ð
               Š、 OC¬„·, tOCõÄC¬„·、 OC¬ÐŠ。
               EFG: CIUXs; {eC°; A’C°; °ëC°; °¸C°; ýÓÏ; YZã
               HIJKL:TV697;TV11   MNOPQ:A    MRSL:1672643X(2022)05007209
                   Comprehensiveeffectofgrouphydrologicalprojectsoncharacteristic

                                  waterlevelofChenglingjiinDongtingLake

                                                                        1
                                                                                       1
                                                1
                                                             1
                                 1,2
                                                                                                        1
                 ZHONGXiaomin ,SHUAIHong,LIJingbao,LIYulian,WANGYuxin,ZHANGJingyi
                  (1.SchoolofGeographicalSciences,HunanNormalUniversity,Changsha410081,China;2.HunanKeyLaboratoryof
                         GeospatialBigDataMiningandApplication ,HunanNormalUniversity,Changsha410081,China)
               Abstract:TemporalevolutioncharacteristicsofcharacteristicwaterlevelofChenglingjiundertheeffectof
               grouphydrologicalprojectswereanalyzedbasedonthemonitoredhydrologicaldataofChenglingjiStationin
               DongtingLakefrom1956to2020usingMann-Kendalltest.Theresultsshowedthattheannualcharacter
               isticwaterlevelofChenglingjishowedasignificantupwardtrend(P <0.05).Comparedwiththefirst
               stage ,theannualaveragewaterlevelofthesecond,thirdandfourthstageincreasedby0.68,1.04and
               1.61m ,respectively,theannualhighestwaterlevelincreasedby0.35,1.14and1.78m,respectively;
               whiletheannualaveragewaterlevelandtheannualhighestwaterleveldecreasedto20.87and30.50m,
               respectivelyatthefifthstage,andtheannuallowestwaterlevelincreasedbystages(18.09,18.84,
               19.32,20.26,and20.87m).TherewerefourhydrologicalseasonsinChenglingjiwaterlevel,whichwere
               waterrisingseason ,wetseason,waterfallingseasonanddryseason.Thehighestwaterlevelinwaterrising
               seasonincreasedbymorethan2m ;theaveragewaterlevelandthehighestwaterlevelinwetseasonfell
               backto28.69and30.42matthefifthstageafterincreasedatthefirstfourstages ;theaveragewaterlevel
               andthehighestwaterlevelfluctuatedinwaterfallingseason,andthelowestwaterlevelgraduallydecreased
               atthelastfourstages ;indryseason,theaveragewaterlevelandthelowestwaterlevelincreasedgradually,
               andthecharacteristicwaterlevelatthefifthstageincreasedbymorethan2m.Theeffectofgrouphydrolog
               icalprojectsonthecharacteristicwaterlevelofChenglingjipresenteddifferentstatesineachtypicalyear.

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