辽阳一丹东地区黑土层分布规律及影响因素

——以凤城市为例

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中图分类号： S155.2+7 文献标志码：A 文章编号：2096-9902（2026）03-0052-04

Abstract：Inordertostudytherelationshipbetweenthedistributionlawsofblacksoillayersandhumanactivitiesinthe Liaoyang-Dandongarea，thispaperusesGISsoftwaretoextractterrinfactorsfromthedigitalelevationmodelbasedonthe black soillayerthicknessdataofthesurveypoints；usesSPSsoftwaretoperformdescriptivestatisticalanalysisontesample pointdata，andcarrisoutherarchicalkriginginterpolationtoobtainablacksoillayerthicknessdistributionmapinFegcheng City，anddiscussestherelationshipbetweenblacksoilthicknessdistributioncharacteristicsandtheimpactoflandformand humanactivities.Theresearchshowsthattheblacksoillayeristhickerandwiderinthesouthwest，andtheblacksoillarger than 100cm ismainlydistributed in thesouthwest;themaximumaveragevalueof black soil thickness is locatedin the eroded auvialandproluvialvallys，andtheminimumvalueislocatedinthelow-midlemountainsofstructuraldenudatin;The thicknessdistributionofblacksoillayerismainlyaectedbythelandformtypeandriverwaters，aswellasslopeandhuman activities.Thethickness of black soil layerin the downstream area of river alluvial is higher.

Keywords：black soil layer; Fengcheng City; Kriging interpolation; distribution law;terrain factors

黑土地被誉为“耕地中的大熊猫"，其在保障国家粮食安全和维持区域生态平衡方面具有不可替代的作用。（剩余6121字）