【摘要】 本文依据信息论的理论和方法，用聚集度、起点信息、终点信息等指标描述秦岭南坡中山地带原生植被主要乔木种群的空间分布。用相对景观优势度、种间结合指数揭示不同海拔地带森林景观结构的基本特征。接种群优势度随海拔和坡度的变化规律分析几个种群与立地的关系。应用渗透理论的研究成果，从结构和经营措施上对现有华山松林培育提出了建议。更多还原

【Abstract】 Socialbility, starting point information, terminal point information, etc. were used to describe spatial distribution of the main tree populations of the primary vegetation at middle mountain zone of south-facing slope of the Qinling Mountains by the theory and method of in-formation theory. Structure characteristics of forest landscape at different elevations were ana-lyzed through dominance of landscape and association index of species. Relationships between the populations and sites were explained in the light of the variations of population dominance with el-evation and slope steepness. Management suggestions for Pinus armandi forest are proposed ac-cording to osmotic theory.更多还原