基于区块链的粮食供需匹配机制构建研究

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中图分类号：G352 文献标识码：A 文章编号：2095-5553（2026）02-0168-09

Abstract：Innovating thefood'supplyanddemand matching mechanismisarealisticned toallviate thetightbalance between food supplyand demand in Chinaat thisstageandreduce therisksand hiddendangersoflocalizedregional food suply，and itis alsoanecessary measuretosmooththedomesticfoodcycleandenhance theresilienceofthefood supply chain.Basedonthe practiceof foodtransactionsandthe advantagesof blockchaintechnology，the foodsupplyand demand matching mechanism based onblockchain isconstructed，focusingontheconstructionofanormalized element expression for multi-source heterogeneous food supply and demand data，designing a food suply and demand matching algorithmbasedonthesimilaritydegreeof theelements，andgivingthekeystepsfortheimplementationof the algorithm'ssmartcontract.Finally，thescientificityandefectivenessof thematching mechanismwereverifiedthrougha numerical example.The food supply and demand matching mechanism based on blockchain not only providesa standardizedsemanticand structural expressionoffood suplyanddemanddata，butalsoefectivelysolvestheproblemof foodsupply and demand matching caused by factors such astime，geographic factors and information asymmetry，etc.At the same time，through the automatic execution and dynamic adjustment of the smart contract，acredible state can be achieved withouttheparticipationofathirdpartytoachievetheefientdockingoffood suppyanddemand transactions.

Simulation tests show that the grain supplyand demand matching mechanism based on blockchain can significantly improve the matching efficiency.The average matching time for each order is 1.2s ，and it can handle approximately 2 25O supply and demand information sheets simultaneously，reducing the time cost of matching decisions.

Keywords：supply and demand matching；food supply chain;blockchain; smart contract; data governance

0 引言

近年来，受地缘政治冲突及全球气候变化等影响，世界粮食安全格局受到冲击，粮食流通和供应受阻致使很多国家和地区面临粮食供应链断链、粮价上涨的危险，局部区域粮食供应的风险和隐患将持续加大。（剩余13283字）