作　　者： ; ; (等）;

机构地区： 东北林业大学

出　　处： 《木本植物研究》 2001年第1期157-160,共4页

摘　　要： 应用分形维数对样带内乔木种群的龄级结构进行研究 ,探讨了植物种群龄级结构动态干扰条件下的敏感性 ,进行了种群龄级结构的稳定、衰退、增长变化分析。研究结果表明 :样带各地段辽东栎种群均为优势种群 ,各龄级个体空间占据能力强于其它种群 ;大叶白蜡种群的龄级随海拔升高趋于丰富、五角枫种群的龄级趋于单一。所有乔木种群的龄级结构均为年轻的增长型 ,种群增长性 (Vpi)、干扰敏感性大小差异很大 ,与龄级数量和空间分布呈负相关。 In this paper, the age-class structure of arbor populations in sample belt were described by fractal dimensions. Dynamics of age-class structure, sensibility of interfering conditions and change of stabilization, decline and increase of population's age-class structure were studied. The result show: Quercus liaotungensis always is dominant popuplation and its individuals of different age-class have wider capacity of spatial distribution at different parts in sample belt. The age-class of Fraxinus rhynchophylla tends to complex but the one of Acer mono tends to simple along the simple belt. All of arbor populations belong to younger increasing type of age-class structure. For different arbor populations, the value of increase ( V pi ) and the sensibility of interfering conditions have larger variance and display approximatively negative relation with quantity of age-class of this population and spatial distribution at different parts in sample belt.

关 键 词： 龄级结构动态 分形维数 辽东栎林 种群

领　　域： [生物学] [生物学]