简介：Thebiodiversityofarbuscularmycorrhizalfungi(AMF)wassurveyedintheKolmregionofIraninthreeadjacentsites,anaturalstand,a10-year-oldanda15-yearoldplantationofAmygdalusscoparia.Todate,therehavebeenfewstudiesofAMFbiodiversityinIran,especiallyinthewesternforestsofthecountry.Forthisstudy,soilandrootsamplesweretakenfromA.scopariarhizospheresoilinspringandautumn.AlmosthalfoftherootlengthwascolonizedbyAMF.Weidentified13AMFspeciesbelongingtoGlomeraceae,ClaroideoglomeraceaeorDiversisporaceae.Thethreeplantationsdifferedintermsofsoilelectricalconductivity,organicCandP.SporedensitywassignificantcorrelatedwithPconcentration.RootlengthcolonizationwascorrelatedonlywithsoilCa.SpeciesdiversityandrichnessweresignificantlycorrelatedwithsoilN,P,organicCandsporedensity.AMFdiversityin15-year-oldplantationswasmoresimilartothatinthenaturalstandthaninthe10-year-oldplantation.Weconfirmedthata15-year-oldplantationisnotsimilarintermsofAMFcolonizationtonaturalstands.Weconcludethatmorethan15yearsarerequiredforAMFcolonizationofplantationstoresemblethatofnaturalstands.