稻田-虾塘循环模式对其水质及水体微生物群落的影响

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关键词：稻田-虾塘循环；凡纳滨对虾;微生物群落；功能预测；环境因子中图分类号：S511;X714;S968.22 文献标志码：A 文章编号：1672-2043（2025）09-2362-12 doi：10.11654/jaes.2024-0826

Abstract：ToelucidatethecharacteristicsofwaterqualityandmicrobialcommunitiesinLitopenaeusvannameicultivationunder integratedriceshimpsystems（IMRS）andmonoculturesystemsinsaline-alkaineconditions，watersampleswerecolectedfromIMR pondsandshrimpmonoculturepondsbetweenJune4andSeptember20，O23.Comparativeanalysesofaquaticparametersandmicobal communitycomposionandfunctionalitywereconducted.Theresultsdemonstratedthatduringthecultureperiod，theaverage concentrationsof TN，NH -N，NO-N，NO 2 -N，TP，and COD in the IMRS pondswere reduced by42.65 % ， 51.37% ，42.89%， 57.40% 28.85%，and 32.37% ，respectively，compared with thecontrol ponds throughout theculture process.IMRS ponds showed significantly enhanced microbial ∝- diversityand richness relative to controls.The dominant bacterial phylainboth the IMRS ponds and control ponds wereFirmicutesroteobactera，Cyanobacteria，andctiobacteria.MRSpondsdisplayedsignficantlyigherelativeabudacf ProteobacteriaioctedcteotaAtuvel，sobctedoedidease showedreducedabundanecomparedtoontrols.Functioalaotationevaledsubstantialincreasesinchemoeterotrophicndobi chemoheterotrophic metabolicpathways inIMRS pondsduring mid-latecultivationstages，significantlyexceedingcontrolevels（ P <0.05）. Redundancyanalysis（DA）identifedTN，TP，salinityandNH4-Naskeydeterminantsofmicrobialcommunityvariationotably supplementationwithefetiveicroorgansmsehancedstructuraloptimizationofaquaticmicrbiota.Icoclusion，theslilkalie IMRS effectively improves water qualityand sustains the homeostasis of theaquatic environment during theculture period.

Keywords：integatedicesripsstem;Litopenaeusannamei;icobialommunity;functioalprdictio;enroalto

土壤盐碱化是一个世界性的难题，严重影响着农业生产。（剩余21403字）