长白山红松林主要树种空间格局的模拟分析

 本文引入依坐标点集的空间格局模拟分析法研究了长白山红松林主要树种的格局分布，以及红松不同年龄级格局分布的动态。结果表明：红松在不同的林型、不同的生长发育阶段表现不同的空间格局，乔木层红松属随机型分布，在红松云冷杉林中非随机性较强；随着年龄级增长，红松的空间格局从聚集向随机发展，林木的随机自稀是种群格局动态变化的重要原因。

Simulation Analysis of Spatial Patterns of Main Secies In the Korean-pine Broadleaved Forests In Changbai Mountain

Spatial patterns of main species and of different various age classes of Koreanpines in the Korean-pines broadleaved forest in Changbai mountain were studied using pattern simulation analysis method based on coordinate data sets. The results are as follows: (1) Spatial pattern of Korean-pine changed in different forest types and developmental stages. Adult Korean-pines distributed randomly but the aggregation is stronger in Pinus koraiensis- Picea jezoensis-Abies nephrolepis forest. (2) Patterns of Korean-pine changed from aggregation to randomness and random self-thinning is an important factor of the dynamics.