摘要
应用灰色系统理论，以辽宁省喀左县五大河流两岸营造的赤峰３６杨材积每公顷定期平均生长量为基础，应用Ｖｅｒｈｕｌｓｔ非线性微分动态模型进行预测，建立了材积每公顷定期平均生长量预测模型．预测了９～１５ａ赤峰３６杨每公顷定期平均生长量．从数量成熟及经济效果两方面确定最佳轮伐期为１３ａ，这对提高经营水平。
With grey system theory,on the basis of Chifeng 36 poplar volume of periodic annual increment per hectare on the both banks of five rivers of Kazuo country in Liaoning Province,the forecast model was found by using verhulst non linear dynamic model. Periodic annual increment of Chifeng 36 poplar have been calculated from 9th year to 15th year with the model. The optimum rotation is 13a at technology and economic angles. It is useful to improve the level of management,land utilization ratio and the economic benefit.
