长白山两种生态系统土壤养分比较  

The Soil Nutrients between Two Ecosystems in Changbai Mountain Area

作　　者：胡晓明[1] 李振新[2,3] 王咏[2,3] 

机构地区：[1]长春市环境监察支队,吉林长春130022 [2]东北师范大学城市与环境科学学院,吉林长春130024 [3]国家环境保护部湿地生态与植被恢复重点实验室,吉林长春130024

出　　处：《长春师范学院学报（自然科学版）》2009年第1期57-61,共5页Journal of Changchun Teachers College

基　　金：吉林省林业厅项目(202100052);东北师范大学分析测试基金(2007)

摘　　要：本文通过野外调查长白山地区阔叶红松林和白桦次生林的植被和土壤,并对土壤进行养分分析,着重分析了两种林下三个层次土壤的pH值、总氮、总磷、速效氮、速效磷、总有机碳、C/N和C/P。结果表明,阔叶红松林乔木的平均胸径、物种丰富度、冠层郁闭度和物种多样性均高于白桦次生林。除pH值外,其他土壤中养分指标在阔叶红松林土壤中各层次均高于白桦次生林土壤中相应的层次中的指标值;而红松林土壤中各养分指标的空间变异程度也大于白桦林土壤中养分的空间变异程度。文中进一步分析了长白山的红松阔叶林和杨桦次生林的土壤养分差异、有机碳含量差异及C/N的差异、乔木层群落结构特征和物种多样性的关系。The vegetation and the soil of the Korean pine and broadleaf forest and the secondary birch forest were investigated in Changbai Mountain area. We analyzed the value of pH, Total nitrogen, Total phosphorus, rapidly available phosphorus, rapidly available nitrogen and Total organic carbon in the lab and calculate the C/N, C/P. Results showed that the tree＇ s average DBH, species abundance, canopy coverage and species biodiversity of the Korean pine and broadleaf forest were higher than those of the secondary birch forest. All of the soil nutrients in different layer of soils of the Korean pine and broadleaf forest were higher than those of the secondary birch forest, but the soil pH of the Korean pine and broadleaf forest was lower than that of the secondary birch forest. And the spatial variation degree of the soil nutrients in the Korean pine and broadleaf forest was larger than the spatial variation degree of the soil nutrients in the secondary birch forest. We analyzed the relationship between the difference of the community structure properties and tree＇s species biodiversity and the difference of the soil nutrients,the total organic soil carbon and the C/N in two forests.

关 键 词：阔叶红松林 白桦次生林 土壤养分 群落结构 

分 类 号：X171.1[环境科学与工程—环境科学]