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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FGHIJ:TV213 KLMNO:A KPQJ:1672643X(2022)04007207
Spatiotemporalcharacteristicsofwaterresourcesdevelopment
andutilizationinthePoyangLakeBasin
LIUXin,WUXiangdong,YANXiaoyu,WENTianfu,WUJiaqi
(JiangxiAcademyofWaterScienceandEngineering,Nanchang330029,China)
Abstract:Theanalysisofspatiotemporalcharacteristicsofwaterresourcesdevelopmentandutilizationin
theriverbasincanlaythefoundationfortherationalandeffectivedevelopmentandutilizationoffuturewa
terresources ,andprovideatechnicalsupportfortheplanning,developmentandutilizationofwaterre
sourcesinthebasin.BasedonthewateruseandsocioeconomicdataofPoyangLakeBasinfrom2010to
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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