Page 110 - 《水资源与水工程学报》2023年第5期
P. 110

! 34 " ! 5 #                      & ' ( ) & * + , -                               Vol.34No.5
               2023 $ 10 %              JournalofWaterResources&WaterEngineering                 Oct.,2023

            DOI:10.11705/j.issn.1672-643X.2023.05.12


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                      Spatiotemporaldynamiccharacteristicsofwater-energy-food
                                 couplingintheYangtzeRiverEconomicBelt


                                     WANGQi,WANGShihang,LIYanmin,TAOQin
              (SchoolofSpatialInformaticsandGeomaticsEngineering,AnhuiUniversityofScienceandTechnology,Huainan232001,China)
               Abstract:Water,energyandfoodarefundamentalresourcesforsustainabledevelopment.Howtocompre
               hensivelyevaluatethecouplingandcoordinateddevelopmentofthewater-energy-foodsystemintheYan
               gtzeRiverEconomicBeltfromtemporalandspatialperspectivesisveryimportantforpromotingthesustain
               abledevelopmentofregionalresources.Here ,thewater-energy-foodsystemcouplingcoordinationevalu
               ationindexsystemwasconstructedtakingwater ,energy,foodandthesymbioticunitsofwater-energy,
               water-foodandenergy-foodsystemasinputunits,eachindexwasweightedbyentropymethod,andthen
               thecouplingcoordinationmodelandspatialautocorrelationanalysiswasusedtoquantitativelystudytheco
               ordinateddevelopmentofthewater-energy-foodsystemandthespatiotemporaldynamiccharacteristicsof
               theYangtzeRiverEconomicBeltfrom2010to2019.Theresultsshowthatthecomprehensiveevaluationin
               dexofthewater-energy-foodsystemintheYangtzeRiverEconomicBeltshowedaslowgrowthtrendasa
               wholefrom2010to2019 ,amongwhichthewatersystemcontributedthemosttothecomprehensiveevalua
               tionindexofthewater-energy-foodsystem ,withanaverageannualcontributionof21.57%;theenergy
               systemcontributedtheleast ,whichwasonlyaccountedfor11.95%.Whereasthecouplingandcoordina
               tionlevelofthewater-energy-foodsystemintheYangtzeRiverEconomicBeltincreasedfirstthende
               creased ,amongwhichSichuanProvinceincreasedby5.05%,ChongqingCitydecreasedby2.83%,and
               thedistributionpresentedsignificantspatialheterogeneity ,withtheupperreachessignificantlyhigherthan

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