２０２３年７月防护林科技Jul．,２０２３第４期(总２２３期)ProtectionForestScienceandTechnologyNo．４(SumNo．２２３)文章编号:１００５－５２１５(２０２３)０４－００４８－０３收稿日期:２０２３－０３－１３作者简介:冯淑琴(１９７２－),女,福建明溪人,大学,工程师,从事森林培育研究．不同间伐强度对马尾松人工林土壤理化性质的影响冯淑琴(明溪县瀚仙林业站,福建三明３６５２０１)摘要为促进马尾松人工林的合理经营,分别进行间伐强度为２０％、３０％、４０％和不间伐的对比试验,开展了不同间伐强度对马尾松人工林土壤养分及物理性质影响的研究.结果表明:马尾松林间伐后,土壤的大团聚体(＞０２５mm)含量增加,土壤结构体破坏率下降;土壤容重降低,而土壤通气度和孔隙度增加;土壤中全磷、全氮、速效钾、有机质、速效磷和水解氮提高.间伐强度为３０％的马尾松林具有最好的土壤结构和肥力状况,从改善土壤理化性质角度考虑,马尾松林间伐以３０％的强度较为合适.关键词马尾松;间伐强度;土壤结构;土壤理化性质;土壤肥力中图分类号:S７９１．２４８;S７１４．２文献标识码:Adoi:１０．１３６０１/j．issn．１００５－５２１５．２０２３．０４．０１４EffectsofDifferentThinningIntensityonSoilPhysicalandChemicalCharacterinPinusmassonianaPlantationFengShuqin(MingxiCountyHanxianForestryStation,Sanming３６５２０１,China)AbstractTopromotetherationalmanagementofPinusmassonianaplantation,thecomparativetestofthethinningintensityof２０％,３０％,４０％andnothinningwasconducted,andstudyontheinfluenceofdifferentthinningintensityonthesoilnutrientsandphysicalpropertiesofPinusmassonianawascarriedout．TheresultsindiＧcatedasfollows:afterthinningofPinusmassoniana,thecontentofsoilaggregate(＞０．２５mm)increased,thedeＧstructionrateofsoilstructurebodydecreased;thesoilbulkdensitydecreased,whilethesoilventilationandporosityincreased;thetotalphosphorus,totalnitrogen,fastactingpotassium,organicmatter,fastactingphosphorusandhydrolyzednitrogeninthesoilincreased．Pinusmassonianaforestwith３０％thinningintensityhasthebestsoilstructureandfertilitystatus．Fromtheperspectiveofimprovingsoilphysicalandchemicalcharacter,３０％thinningintensityismoresuitableforPinusmassonianaforest．K...
