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作 者 ：谢晋阳,陈灵芝

期 刊 ：生态学报 1994年 14卷 4期 页码：337~344

关键词：落叶阔叶林；物种多样性；群落结构；演替。；

Keywords:species diversity, deciduous broadleaved forests, community structure, suc-cession.,

摘 要 ：本文从区域、群落结构和动态出发研究了分布于华北地区的主要落叶阔叶林的物种多样性指数特征，结论如下：（１）随着从北到南纬度的不断降低，落叶阔叶林的物种多样性指数不断增加，优势度指数不断减小．其中，乔木层和灌木层的物种多样性指数均遵循上述规律。草本层的物种多样性指数增加后又降低，优势度指数减低后又增加．（２）海拔１２００ｍ以下，物种多样性指数随海拔增加而增加．海拔１２００ｍ以上则随海拔增加而减小。（３）乔木层同灌木层间的物种多样性指数具最大的相关注。（４）物种多样性指数从演替初期到中期不断地增加，到演替后期开始下降。

Abstract:he species diversity characteristics of main deciduous broadleaved forests distributed innorth China were studied on a regional,community structure and dynamic basis。The resultsshow that the deciduous broadleaved forests have increasing species diversity indices and de-creasing dominance indices with the decreasing latitude from the north to the south.Both thearbor and shrub layers of the forests follow the above regularity on species diversity indiceswhile the herb layers have their species diversity indic...

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