Page 76 - 《水资源与水工程学报》2022年第4期
P. 76

!33 " ! 4 #                       & ' ( ) & * + , -                               Vol.33No.4
               2022 $ 8 %               JournalofWaterResources&WaterEngineering                 Aug.,2022

            DOI:10.11705/j.issn.1672-643X.2022.04.10


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                       Spatiotemporalcharacteristicsofwaterresourcesdevelopment

                                    andutilizationinthePoyangLakeBasin

                              LIUXin,WUXiangdong,YANXiaoyu,WENTianfu,WUJiaqi
                               (JiangxiAcademyofWaterScienceandEngineering,Nanchang330029,China)
               Abstract:Theanalysisofspatiotemporalcharacteristicsofwaterresourcesdevelopmentandutilizationin
               theriverbasincanlaythefoundationfortherationalandeffectivedevelopmentandutilizationoffuturewa
               terresources ,andprovideatechnicalsupportfortheplanning,developmentandutilizationofwaterre
               sourcesinthebasin.BasedonthewateruseandsocioeconomicdataofPoyangLakeBasinfrom2010to
               2019 ,westudiedthetemporalandspatialcharacteristicsofwaterresourcesdevelopmentandutilizationin
               recent10yearsfromthethreeaspectsofquantity,efficiencyandstructureofwaterresourcesdevelopment
               andutilizationusingthefactorsofcoefficientofvariation ,LorentzcurveandGinicoefficient,spatialclassi
               fication ,informationentropyandequilibrium.AmongalltheindustriesinthePoyangLakeBasin,thespa
               tialdistributionofwateruseinthesecondaryindustrywasthemostunbalanced ,itscoefficientofvariation
               rangedfrom0.8to0.9,andthespatialmatchingbetweenwaterusedistributionandwaterresourcesendow
               mentwastheworst ,itsGinicoefficientrangedfrom0.30to0.35.From2010to2019,theequilibriumde
               greeofwaterusestructureofcitiesinthebasinrangedfrom0.4to0.75,amongwhich,theequilibriumde
               greeofFuzhouCitywasthesmallest,about0.4,andthatofNanchangcitywasthelargest,about0.75.
               However,thespatialdistributionofwateruseofthesecondaryindustryinthebasinpresentedanupward
               trendduringtheseyears ,becausewaterresourcesgraduallydrewmoreandmoreattentioninthedevelop
               mentlayoutofthisindustry.Thewateruseefficiencyofeachindustryhadobviousspatialdifferences ,but
               thevariationswereinconsistent ,amongwhich,thewateruseefficiencyofthesecondaryindustryhadbeen
               increasingyearbyyear.ThemainfactoraffectingthebalanceofwaterusestructureinthePoyangLakeBa
               sinwasthelargeproportionofagriculturalwaterconsumption.
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