关键词: 灰色关联分析, 经济增长, 能源消费, 辽宁省

Abstract: Radial growth pattern of stem is used to reconstruct the history of suppression and releaseperiods in the course of Fagus engleriana growth, and the radial growth rate of 0.70mm.yr^-1 is chosen as a threshold for distinguishing these two periods. About 69% of ring cores show a distinct suppression period. Its frequency is 1.6, and its mean duration is 22.6 years. The frequency and mean duration of release period are respectively 1.4 and 11.6 years. Three kinds of radial growth patterns are recognized.

Key words: Fagus engleriana, Radial growth, Suppression and release periods, grey correlation analysis, Liaoning Province, energy consumption, economic growth