汾河流域农业生态效率时空分异及影响因素

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中图分类号：S17 文献标识码：A 文章编号：1671-8151（2025）05-0148-13

Abstract：Objective]Inresponsetothecurrentfocusofagriculturaleco-eficiencystudies mostlyonnationalorprovincialscales andthelackofawatershed perspective，thisstudytook theFenheRiverBasin，animportant grain-producing region within the YellowRiverBasin，asitsobject.Itaimed toreveal thespatiotemporaldiferentiationpattersanddriving mechanismsofagri culturaleco-eficiencythere，providingascientificbasisforaddresingthedilemmaofconcurrenteficiencyenhancementandre gional imbalances.[Methods]Agricultural eco-eficiencyatthecountyscale intheFenheRiverBasin from 2Ol1 to 2022 was measuredusing theundesirablenon-radial SE-SBM model.Thespatiotemporal diferentiation characteristicsand influencing factors were analyzedusingthecoeficientofvariation，DagumGinicoeficient，global trendanalysis，and GlobalMoran'sI. [Results]（1）Agriculturaleco-eficiencyintheFenheRiver Basinimprovedsignificantlybutexhibitedregionaldisparities. While the basin-wide mean eficiency surged by 110.9% ，the Gini coefficient increased from O.299 to O.332，indicating wideningregional gaps.Spatially，agricultural eco-efficiency followed a“midstream > downstream ∣> upstream”distribution pattern. The TaiyuanBasinformedahigh-eficiencycore，whereasthewestermountainousareasremainedpersistentlyinefficient，intensifyingthecore-peripherydivergence.（2）Thedriving mechanismofagriculturaleco-effciencyintheFenheRiverBasin shifted froman‘input-intensivemonocentricmodel'（20l1-20l9）to‘economic-resourcecoordinatedoptimization'（2019-202）. （3）The spatialcorelationofagricultural co-eficiency weakened substantially，declining fromahighlyclusteredpatten（Mo ran's I=0.3226 in 2015，P<0.001 ）to statistical insignificance（Moran's I=0.046 1 in 2022， P=0.5034 ）.[Conclusion] Toadressrgionalimbalances inagriculturalecoeficiencyacrosstheFenheRiverBasin，systematicinterventions wereimper ative.These included implementinga'terrcerenovation-micro-machineryadaptive system in westerm mountainous areas to mitigate terrinconstraints，stablisingaclosed-loop'scaleoperation-incomefedback’mechanism torevitalizetraditionalagri culturalregions，andleveragingadigitalwatershedplatformtomonitorecologicalelementflowswhilecreatingaregionalmutu al-aidfundtoenhancesystemicresilience.Thisframeworkprovidedtheoreticalinsightsandpracticalpathways forsustaiable agricultural development in river basins.

Keywords：AgriculturalcoefciencySE-SBmodel，patiotemporaldirentiationcharacteristics，FenheRirBsin

农业是人类生存和发展的基础产业，不仅为人类提供最基本的生产生活资料，还在维护生态平衡、保障国家粮食安全、促进农村经济发展等方面发挥着重要作用。（剩余20393字）