森林类型转换影响土壤碎屑食物网的关键途径

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中图分类号：S714.3 文献标志码：A 文章编号：1673-923X（2025）11-0001-09

Key pathways of forest type conversion affecting soil detrital food webs

WUFuzhong1²，WENHuihui1

.SchoolofgcalieeolbnutralitutueholoualUesityzo China;2.FujianSanmingForestEcosystemNationalObservationandResearchStation，anming365o2，Fujian，China）

Abstract：Detritalfoodwebsdrivenbysoilfaunaaretheessentialcomponentsduringliterdecompositionandotermateralycling processesinforestecosstemsHowever，thecurenthigfrquencyandlarge-scaleconversionofnaturalforeststopantatiosay profoundlyalterthestructureandfunctionofdetritalfodwebs.Tispapersystematicallyanalyestheeffctsofforesttyecosion onsoildetritalfoodebstroughreepatay：iterharactestiderstorymcoenontnderypthwastly naturalforestsaveelativelyigherlitediversityndmorstableiput，whichsupportcomplextrophicstructursofsolfunabut plantationsofendsplaysinglelitrtandduceliterualityeadingtoimplifdommuitysructuresofsoilfuaodly comparedwithturalforstsatatiosebiteasdgetioesityesdocatiutaiosiio anddeterioratedsoilpysicalandchemicalenvironment.Thesechanges furtherweaken habitat heterogeneityandesourcesupply therebyshorteningthelngthofdetrialfoodchains.Furthermore，thereisalossoftrophiclevelstructure（especialltoprdators） aftertheconvesioofatualforesttoatatiosducedergaerecydlitedabilityofetritalfodwebs. Neverthelesscurrentstudiesstillavemanykowledgegaps，suchasspecificplantatontreespecies，ulti-factorinteractios，nd functionalquantifcationItissugestedthattructure-functionmodelsshouldbeconstructedbycombiningstableisotoptechology multi-factorexpriments，andlong-teobseratiosintefutureeesultswillbeexpectedtoprovideateoreticalsisfor fullunderstandingthehangesincosystemstructureandfunctionfterforesttyeconversion，aswellasfortelototure management of plantations and the conservation of soil biodiversity.

Keywords：forestconversion;littersubstrate;understory micro-environment; energy pathway;detrital food web

森林土壤无脊椎动物类群（简称“土壤动物”）涵盖了从原生动物和线虫等小型种类，到螨类和跳虫等中型种类，再到蚯蚓和步甲等大型种类的广泛生物类群。（剩余18318字）