摘要
Background:Acaciamangium,afast-growingtreenativetopartsofIndonesia,PapuaNewGuineaandAustralia,hasbeencultivatedoutsideitsnativeenvironmentandintroducedintohumidtropicallowlandregionsofAsia,SouthAmericaandAfricaoverthelastfewdecades.Itisamultipurposetreeusedinagroforestry,forestryandforrestorationofdegradedlands.Itisalsohighlyinvasiveinmanyregionswhereithasbeenintroducedoutsideitsnativerange.Thispaperreviewsevidenceofitsobviousbenefitsanditsnegativeimpactsonbiodiversity.Methods:AliteraturereviewonAustralianacaciasandespeciallyonA.mangiumwasundertakentohighlightbothbenefitsandthreatsassociatedwiththeirincreasingworldwideuseoutsidetheirnativeranges.Results:ThroughN2fixedfromtheatmosphere,A.mangiumimprovessoilfertility,especiallybyincreasingNstatusandsoilCaccretionwhenintroducedtoN-limitedareas;itthushasthepotentialtorestorenutrientcyclingindegradedsystems.Nostudieshave,however,beendonetoassesstheeffectivenessofA.mangiuminrestoringbiodiversityofdegradedlands.MostAustralianacaciashavetraitsthatfacilitateinvasiveness,and23specieshavebeenrecordedasinvasivetodate.A.mangiumhasbeenreportedasinvasiveinAsia,Indonesia,PacificIslands,IndianOceanIslands,southernAfricaandBrazil.ResearchonotherinvasiveAustralianacaciasinseveralpartsoftheworldhaselucidatedthetypesofimpactsthatarelikelyindifferenttypesofecosystemsandkeyoptionsformitigatingimpacts.Conclusions:A.mangiumhasthepotentialtorestorenutrientcyclingindegradedsystems,butishighlyinvasivewhereveritisplanted.Manypartsoftheworldhavealargeinvasiondebtforthisspecies.Experiencewithotherinvasiveacaciasaroundtheworldsuggestsasuiteofinterventionsthatcouldbeusedtoreduceinvasionsandmitigateimpacts.Carefulriskassessmentsshouldbeundertakenpriortoanynewplantingsofthisspecies.
出版日期
2019年01月11日（中国期刊网平台首次上网日期，不代表论文的发表时间）
