云南顶瓶梗霉对不同含水率的针叶和阔叶凋落物的降解效果

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中图分类号：S718.81 文献标志码：A 文章编号：1673-923X（2025）09-0012-07

Abstract：【Obectie】LittrloadmainlyaffectstheprobabilityofforestfreoccurrenceandspreadtoisasterTheanalysisofthe degradationefectofAcropialophorayunnanensisonliterwithdiferetmoisturecontentisofgreatsignificaceforfireprevention throughbiologicalfirepreventon.【Method】Coniferousandbroad-leaveditersretreatedwithfermentationbroth，purifedude enzymeand livingfungi of P. yunnanensis todegraderespectively，thentheweightlossratewasdetermined，andthedegradation efectsofthreetreatmentsonthetwotypesofliters withdiferentmoisturecontent wereanalyzed.【Result】Purifedcrudeezymeof Pyunnanensiscoulddegradebroad-leavedandconiferousliter，andtheweightlossrateofbroad-leavedandconiferousliterwas 10.52% and 6.27% atl0 days，respectively.Forbroad-leaved litter，the litter with 50% 150% moisture content was significantly degraded byfermentation broth and purified crudeenzyme，while the litter with 25% 150% moisture content was significantly degraded by living fungi.ForconferousitethdegradationectoftelitricreasedwihteicreaseoflitermosturecontentTedgadation effctoffermentationbrothandpurified crudeenzymenolonger increasedafterthe litermoisturecontentreached 150% ，while the degradation effect of living fungino longer increased after the litter moisture content reached 100% .【Conclusion】Purified crude enzymeof P. yunnanensiscoulddegradebroad-leavedandconiferousliterobviouslyandhadbeterdegradationefectonbroad-leaved literThemosueotofeddgatiofiosueoetoflitsultogaiolie anddegradationofifeousliterasmoreafftedbymoistureontentoflitertantatofroad-eavediterhildgadation efectofliterwaslessaffctedbymoisturecontentofliterwhenliterwasdegradedbylivingfungiTheresultswillprovidesome referencefor thestudy of forest fuel load regulation.

Keywords：litter;degradation;Acrophialophora;fungus; forestfirerisk

随着全球气候的变暖，森林火灾频繁发生，减少林火发生和降低其造成的危害是林火管理人员的重要研究内容。（剩余13622字）