森林-草原交错带土壤节肢动物物种相对多度模型拟合研究  

Application of various models to the study on relative abundance of soil arthropod animal species in the ecotone of forest-steppe region

作　　者：朱新玉[1,2] 王玉玲[1] 高宝嘉[2] 胡云川[1] 

机构地区：[1]商丘师范学院,商丘476000 [2]河北农业大学,保定071000

出　　处：《干旱区资源与环境》2012年第6期79-84,共6页Journal of Arid Land Resources and Environment

基　　金：国家自然科学基金项目(30070626);商丘师范学院2011年度青年科研基金项目(2011QN21);河南省科技厅科技攻关项目(102102310386);河南省科技厅基础与前沿技术研究计划项目(112300410267)资助

摘　　要：应用群落物种多度分布模型:对数级数分布模型、对数正态分布模型、几何级数分布模型和分割线段分布模型研究了森林草原交错带土壤节肢动物群落的种-多度分布关系。结果表明:对数级数分布模型和对数正态分布模型能够较好的拟合交错带大型土壤节肢动物群落的种-多度分布,中小型土壤节肢动物仅能用对数级数分布模型来拟合;几何级数分布模型和分割线段分布模型则不适于描述该区土壤节肢动物群落物种多样性。对数级数分布的参数α和对数正态分布的参数λ是反映群落结构特征内在性质的量,可以作为物种多样性指数运用,能较好地反映群落的物种丰富度。研究结果可为交错区群落物种多样性保护提供理论基础。Species relative abundance disribution in soil arthropod animal community in the forest Steppe ecotone in the northern parts of Hebei Province was studied by using patterns of log series distribution, log normal distribution, geometric series distribution and broken stick models to study species abundance relations of soil arthropod animal community. The results showed that the species relative abundance of macrofaunas in the community could be well described by log series distribution and log normal distribution models, while that of mesofaunas could only be well described by log normal distribution model. The geometric series distribution and broken stick models could not be used to describe the soil arthropod animal community in the ecotone of forest steppe region. The parameters of log series distribution α and log normal distribution h, the intrinsic characteristics related to community structure, could be used as species diversity indices and better reflect the richess of soil arthropod animal community. It is suggested that these methods might be useful for the protection of biodiversity of the soil arthropod animal community.

关 键 词：交错带 土壤节肢动物 物种多度分布 物种多样性 

分 类 号：Q958.1[生物学—动物学] S718.7[农业科学—林学]