吕梁山区红枣林生态转型模式对土壤微生物功能多样性的影响

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中图分类号：S154.3；X172 文献标志码：A 文章编号：2095-6819（2025）06-1658-10 doi：10.13254/j.jare.2024.0800

Abstract：Bystudyingthefunctionaldiversityofsoilmcroranismsunderdiferentcologicaltransitionmodesofrdjujubeonomic forestsinLvliangMoutainousara，wecanprovideteoreticalbasisandpracticaleferenceforthesustainabledevelopmentofological transitionofedjujubecoomicforests.IntisstudyologEcoicrotiterplatetechologywasusedtoselectfourypicalological transitionmodes：replantingofreddatepalmforestwithChinesepine（CP），replantingofcypress（PO），replantingofalfalfa（AL）nd replantingofdialerb，ndoalebomeaboflcoogamssellaseracteitosi indexesunderdiferentecologcalransitionmodeswiththnaturalabandonmentofreddatepalmforestsCK）asteojectofthestudy TheresultsshowedtatCP，POMandALsignificantlycreasedtharbonsourcemetabolicactivityofsoilicroorganssopared withCK，withCPtreatmentbeingthehighest.Thestrongestutilizationofsugars，alcohols，aminesandcarboxylicacidswasPO，the strongestutilizationofaminoacidsandestersasCP，andCKwastheweakestutilizationofallsixtypesofcarbonsourcs.iernt ecological transition model soils significantly （ P<0.05 ）increased the ability of microorganisms to utilize six types of carbon sources cypress.Simpson’sindex（.94），McIntosh’sindex（（4.99）andcarbonsourceutilizationrchnessindex（19.O1）were highestforsoil microorganismsforteCPtreatmentandShanon’sindex（2.91）washighestforthePOtreatment.Corelationanalysisandpartialleast squares path modeling showed that soil microbial functional diversitywas significantly negativelycorrelated（ .P<0.05 ）with soil pH and positively correlated （ P<0.05 ）with soil organic carbon， microbial mass carbon，and total phosphorus content. Organic mater inputs affectedoilSOdotcinuedthbilitflcoastutlarbsouducoasi indicesindiferentecologicaltransitionmodes.Thereplantingofdiferentvegetationinjujubegrovesimprovethecarbosource metabolismanddiversityindicesofsoilmicrorganisms，inwhichthereplantingofChinesepineandcypressmodelsisbeterthanthe replanting of alfalfa and medicinal herbs.

Keywords：jujube forest; ecological transformation; microbialcarbon source utilization;diversityindex

退耕还林（草）工程是将易造成水土流失的坡耕地停止耕种，因地制宜地造林种草，恢复植被的转型过程1-2。（剩余15937字）