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该文利用指数分布、Weibull分布和混合分布3种类型7个方程模拟长白山阔叶红松林径级分布.研究结果表明,长白山阔叶红松林的径级分布不是理想的倒“J”型,基本为“S”型;用3个负指数方程和修正指数方程模拟均为倒“J”型,在半对数图上为直线;Weibull方程模拟出了单峰,但是效果一般;用2个和3个组分的Weibull混合模型对长白山阔叶红松林径级分布进行了成功模拟,3个组分的Weibull混合模型的模拟效果有所提高,但是并没有显著改善.
In this paper, 7 types of exponential distribution, Weibull distribution and mixed distribution were used to simulate the diameter distribution of broad-leaved Korean pine forest in Changbai Mountain.The results showed that the diameter distribution of broad-leaved Korean pine forest in Changbai Mountain was not ideal “J” Is the “S” type; the three negative exponential equation and the modified exponential equation are inverted “J” and straight on the semi-logarithmic graph; the Weibull equation simulates a single peak, but the effect is general; Weibull mixture model of three components was used to simulate the size distribution of broad-leaved Korean pine forest in Changbai Mountain. The simulation results of Weibull mixed model of three components were improved, but not significantly improved.