古今黄河三角洲交接带耕地盐渍化空间变异及其驱动因素
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中图分类号：S156.41 文献标志码：A 文章编号：2095-6819（2025）04-0834-10 doi：10.13254/j.jare.2024.0333
Spatial variation and driving factors of cultivated land salinization in the transition zone of the ancientand modernYellowRiverDelta
LIJinyu1，GAOMingxiu1*，WANGJiafan²，LIHubo³，FANGXiuhong4，CUIXia5 （1.CollgeofsousndotdoululUesity’n8，a;2.tiollural andEquipmentInovationCenter，Luoyang471934，China;3.QingdaounicipalParkManagementServiceCenterQingdao66000 China;4.AgricultureandRuralAfairs BureauofDecheng District，DezhouCityDezhou253050China;5.SongguantunStrete Decheng District，Dezhou City，Dezhou 253034，China）
Abstract：Inordertoomprehensivelyaalyethspatialvariatioofsaliityincultivatdlandsolanditsdriingfactos，thssudytook Lijin County，Dongying City，thetransitionzoneoftheancientandmodern Yelow River Delta，as theresearcharea.Basedon in -situ conductivitymodeling，thesoilalinityinformationofcultivatedlandsurveysamplepointswasotained.BasedonGISandGMSspatial modelingtechnology，thespatialvariationcharacteristicsofsoilsalinizationincultivatedlandwasanalyzdfromtwodimensioaland three-dimensioalpespectivs.ThidexmetodasusedtoquantitielyevaatethdegeofsoilslizationinclivatedlandTe maindrivingfactorsofspringsalinizationwereanalyzedbasedongeographicaldetectionmethod.Teresultsshowedthatthaveragesalt content of the surface soil of cultivated land in the study area in spring was 4.24g⋅kg-1 ，with a median of 2.69 g⋅kg-1 ; the average pH value was8.18，idf2cadateaallIsalsalteiy inthestudyareaassigniicant，ndtesoilsaltontentiachayershowdagaduallyreasngtrendfromsouthtooh（roand tooffshore）.Inthree-dimensionalspace，theoverallsaltcontentofcuivatedlandsoilshowed“surfaceaggregation”distribution characteristics，withcalbotomaggregationandtwoendaggregationtyps.Themostseriousareaofsalizationinthestudyareaas mainlylocatedinTingluoTowninthenorth.Thetownship（stret）leastafectedbythesaltdisasterwasFenghuangchengStrtinthe southofthestudyareaandclosetotheYellowRiver.Thesubsurfacesoilsaltcontentisthemaindrivingfactorforsoilsalinizationin cultivatedlandinthestudyareaandithasanimportantinfluenceonhespatialdistrbutionofsoilsaltcontentinsprigthrough synergistic effect with other factors.
Keywords：soil salinity; three-dimensional space; variation characteristic; driving factor
土壤盐渍化是在自然、人为因素综合作用下盐碱成分在土壤中超量富集而形成的土地退化形式之一，是影响农业生产和生态保护的限制因素[1-3]。（剩余17731字）
