RT info:eu-repo/semantics/article
T1 How harmful are exotic plantations for soils and its microbiome? A case study in an arid island
A1 Díaz Peña, Francisco Javier
A1 Perdomo González, Adolfo
A1 Pérez Reverón, Raquel
A1 Goberna, Marta
A1 León Barrios, Milagros
A1 Fernández López, Manuel
A1 Villadas, Pablo J.
A1 Reyes Betancort, J. Alfredo
K1 Arid land
K1 Soil degradation
K1 Revegetation
K1 Exotic plants
K1 Soil bacteria
K1 Soil fungi
AB Theplantationofexoticspecieshasbeenacommonpracticein(semi-)aridareasworldwideaimingtorestorehighly degradedhabitats.Theeffectsoftheseplantationsonplantcoverorsoilerosionhavebeenwidelystudied,whilelittle attentionhasbeenpaidtotheconsequencesonsoilqualityandbelowgroundbiologicalcommunities.Thisstudyevaluatesthelong-term(>60years)effectsoftheexoticspeciesAcaciacyclopsandPinushalepensisrevegetationonsoil properties,includingmicrobiome,inanaridisland.Soilsunderexoticplantationwerecomparedtobothdegraded soilswithaverylowcoverofnativespeciesandsoilswithwell-preservednativeplantcommunities.Sevenscenarios wereselectedinasmallarea(~25ha)withsimilarsoiltypebutdifferingintheplantcover.Topsoils(0–15cm)were analyzedforphysical,chemicalandbiochemicalproperties,andampliconsequencingofbacterialandfungalcommunities.Microbialdiversitywassimilaramongsoilswithexoticplantsandnativevegetation(Shannon'sindex=5.26 and5.34,respectively),whilethemosterodedsoilsexhibitedsignificantlylowerdiversitylevels(Shannon'sindex= 4.72).Bacterialandfungalcommunities'compositionindegradedsoilsgreatlydifferedfromthoseinvegetatedsoils (Canberraindex=0.85and0.92,respectively)likelyduetohighsoilsodicity,finetexturesandcompaction.Microbial communities'compositionalsodifferedinsoilscoveredwithexoticandnativespecies,toagreaterextentforfungi thanforbacteria(Canberraindex=0.94and0.89,respectively),duetohigherlevelsofnutrients,microbialbiomass andactivityinsoilswithnativespecies.Resultssuggestthatreforestationsucceededinavoidingfurthersoildegradationbutstillleadingtorelevantchangesinsoilmicrobialcommunitythatmayhavenegativeeffectsonecosystemstability.Informationgainedinthisresearchcouldbeusefulforenvironmentalagenciesanddecisionmakersaboutthe controversialreplacementofexoticplantsininsularterritories.
YR 2023
FD 2023
LK http://riull.ull.es/xmlui/handle/915/35962
UL http://riull.ull.es/xmlui/handle/915/35962
LA en
NO https://doi.org/10.1016/j.scitotenv.2023.163030
DS Repositorio institucional de la Universidad de La Laguna
RD 17-may-2024