CAJ | 학술논문

为探索我国天然油松林土壤碳氮分布格局，研究生态脆弱边缘区对全球气候变化的响应。对辽宁西部医巫闾山3种油松林（荆条-油松林、胡枝子-油松林、华北绣线菊-油松林）土壤碳氮分布特征进行了综合分析。结果表明：土壤碳氮分布随着土壤剖面深度的增加而降低；而同一土壤剖面层次内3种林分土壤碳氮分布规律不尽相同；表层土壤全氮质量分数、碳氮比与土壤有机碳质量分数呈极显著的正相关关系，而土壤密度、pH值呈显著的负相关；地表枯落物全氮质量分数、碳氮比与土壤有机碳质量分数呈显著的正相关，枯落物有机碳质量分数则呈显著的负相关。
위탐색아국천연유송림토양탄담분포격국，연구생태취약변연구대전구기후변화적향응。대료녕서부의무려산3충유송림（형조-유송림、호지자-유송림、화북수선국-유송림）토양탄담분포특정진행료종합분석。결과표명：토양탄담분포수착토양부면심도적증가이강저；이동일토양부면층차내3충림분토양탄담분포규률불진상동；표층토양전담질량분수、탄담비여토양유궤탄질량분수정겁현저적정상관관계，이토양밀도、pH치정현저적부상관；지표고락물전담질량분수、탄담비여토양유궤탄질량분수정현저적정상관，고락물유궤탄질량분수칙정현저적부상관。
We analyzed the distribution patterns of soil organic carbon and total nitrogen in Vitex negundo-P.tabulaeformis ( YⅠ) , Lespedeza hedysaroides-P.tabulaeformis ( YⅡ) and Spiraea fritschiana-P.tabulaeformis ( YⅢ) , to provide basic data for exploring the soil carbon and nitrogen distribution pattern in natural P.tabulaeformis forests in China and provide ecological fragile edge area response to global climate change.The soil organic carbon and total nitrogen of these three for-ests all decreased with the increase of the profile depth, and the distribution characteristics of soil organic carbon and total nitrogen in the same profile depth within three forests were not the same.By the correlation analysis of the impact factors of surface soil organic carbon partial, soil properties, total nitrogen, carbon nitrogen ratio and soil organic carbon had signifi-cant positive correlation, however, bulk density and pH value had significantly negative correlation with the soil organic carbon.For vegetation cover, litter total nitrogen and litter carbon nitrogen ratio and soil organic carbon had significantly positive correlation, and the litter organic carbon had significant negative correlation.