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作 者 ：桑卫国

期 刊 ：生态学报 2001年 21卷 11期 页码：1802~1807

关键词：演替；竞争；模型；

Keywords:succession, competition, forest dynamics gap model,

摘 要 ：研究了以过程为基础的模型在物种竞争试验模拟及实践中的应用。应用森林动态林窗模型模拟了群落内物种竞争规律。结果表明 :同一群落中具有不同生物、生态学特征的物种竞争过程与环境条件有密切关系。由此确定 ,竞争是与外部条件密切相关的 ,不是一个单独衡量物种特征的指标 ;具有相似生物和生态学特性的物种 ,在森林植被发育过程中 ,存在绝对竞争 ,具有较弱更新与生长能力的物种 ,始终处于竞争劣势 ,不宜于在这样的群落中生长 ,而具有较强更新和生长的树种在群落中处于优势地位。

Abstract:Botkin et al developed a individual tree based model of forest dynamics by using the methods of forest growth and yield model, depending on gap theory of forest dynamics. This type of model called Gap Model was widely used in many different forest types world wide, such as boreal forest, warm temperate deciduous broad leaved forest, subtropical forest and tropical forest. Gap Model can be used as tool to probe into theory of forest dynamics in landscape and regional area on long term forest developme...

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