佛子岭自然保护区外来入侵植物调查分析

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中图分类号 Q948 文献标识码 A 文章编号 1007-7731（2025）20-0100-04

DO1号 10.16377/j.cnki.issn1007-7731.2025.20.023

AbstractToclarifythe distributionstatus and influence degree of invasivealien plants inFoziling Nature Reserve， amethodcombining lineinvestigationandplotinvestigationwasadoptedtoinvestigatethetypesandhazardtypesof invasive alien plants，aswellas the invasion routes and hazard characteristics.Theresultsshowed that there were 5 invasivealienplantsinthestudyarea，belonging to5familiesand5genera，namelySolidagocanadensis，Alteranthera philoxeroides，Cuscutachinensis，Phytolacca Americana，Amaranthusspinosus.The high-incidence periodsof the5 plantswereallfrom JulytoNovember，andallof themhaveaffcted ecological security.Invasiveplantswere concentratedin the experimental area（4 sample plots）and the bufer zone （8 sample plots），and no invasive species were found in thecorearea.The invasionroutescould bedivided intounintentional introductionandnatural introduction. Among them，twoinvasivealienplants，SolidagocanadensisandAlternantheraphiloxeroides，hadasignificantimpacton the population ecology of nature reserves.The importance values of invasive alien species from high to low were Solidago canadensis > Alternanthera philoxeroides > Cuscuta chinensis > Phytolacca Americana > Amaranthus spinosus， withtheir importancevaluesbeing15.74，15.39，13.72，3.34and11.18respectively.Overall，theinvasivealiepants inthestudyareashowedanunevenspatial distribution，weregreatlyafectedbyhumanactivities，andtheimportance value ofinvasive alien species was constantlyincreasing.Ecological restoration work should becarried outto prevent the spread and proliferation of invasive alien plants.

KeywordsFoziling Nature Reserve; invasive alien plants; important value; invasion pathways

外来人侵植物是指未在本地生态系统中自然发生、变化，而是通过人为或自然途径从原生分布区传播至本地后，能够在本地生态系统中生存和繁殖的植物l。（剩余4415字）