CAJ | 학술논문

利用64个样地实测数据，运用SPSS软件，以江西省杉木林、马尾松林、阔叶林、针阔混交林4种主要森林类型为研究对象，比较分析了土壤有机碳分布特征及其与土壤容重的关系。结果表明：江西省4种主要森林类型的土壤有机碳含量在1m土壤剖面分布均表现为：表层＞亚表层＞底层，森林土壤有机碳主要分布在土壤表层，在同一土壤层次均表现为阔叶林＞针阔混交林＞杉木林＞马尾松林，不同森林类型和土壤层次有机碳含量差异性明显；4种森林类型在不同土壤层次土壤有机碳含量均与容重呈显著负相关；森林土壤有机碳密度阔叶林（13．2265±1．18197 kg/m2）＞针阔混交林（11．1804±1．78677 kg/m2）＞杉木林（9．1065±1．18197 kg/m2）＞马尾松林（6．2019±0．94853 kg/m2），不同森林类型的土壤有机碳密度差异性显著，江西省主要森林类型的土壤有机碳密度为10．1740±0．6935 kg/m2。
이용64개양지실측수거，운용SPSS연건，이강서성삼목림、마미송림、활협림、침활혼교림4충주요삼림류형위연구대상，비교분석료토양유궤탄분포특정급기여토양용중적관계。결과표명：강서성4충주요삼림류형적토양유궤탄함량재1m토양부면분포균표현위：표층＞아표층＞저층，삼림토양유궤탄주요분포재토양표층，재동일토양층차균표현위활협림＞침활혼교림＞삼목림＞마미송림，불동삼림류형화토양층차유궤탄함량차이성명현；4충삼림류형재불동토양층차토양유궤탄함량균여용중정현저부상관；삼림토양유궤탄밀도활협림（13．2265±1．18197 kg/m2）＞침활혼교림（11．1804±1．78677 kg/m2）＞삼목림（9．1065±1．18197 kg/m2）＞마미송림（6．2019±0．94853 kg/m2），불동삼림류형적토양유궤탄밀도차이성현저，강서성주요삼림류형적토양유궤탄밀도위10．1740±0．6935 kg/m2。
According to the measured data of 64 surveyed sample plots, using SPSS software, taking Chinese fir forest, masson pine forest, broadleaf forest, mixed broadleaf -conifer forest in Jiangxi as research objects, the author analyzed the distribution characteristics of soil organic carbon and its relationship with soil bulk density.The soil organic carbon content in 1-m soil profile distribution of above four forest types all showed the following trend:surface soil layer>subsurface soil layer>bottom soil layer, namely the organic carbon of forest soil was distributed mainly in the surface soil layer.The organic carbon content in the same soil layer of different forest types revealed the following order:broadleaf forest>mixed broadleaf-conifer forest>Chinese fir forest>masson pine forest.There was obvious difference in soil organic carbon content among various forest types as well as among different soil layers.The organic carbon content in different soil layers of four forest types all was significantly negatively correlated with soil bulk density.As for the organic carbon density of forest soil, four forest types could be ranked as follows:broadleaf forest (13.2265 kg/m2 ±1.18197 kg/m2)>mixed broadleaf-conifer forest (11.1804 kg/m2 ±1.78677 kg/m2) >Chinese fir forest (9.1065 kg/m2 ±1.18197 kg/m2)>masson pine forest (6.2019 kg/m2 ±0.94853 kg/m2).There was significant difference in soil or-ganic carbon density among different forest types, and the average soil organic carbon density of main forest types in Jiangxi province was (10.1740 ±0.6935) kg/m2 .