Acting principle factors which affect the outturn of sand including sand age and site index as parameter, prediction model H=a1D a2A a3si a4,V=a1D a2H a3 on stand outturn of Japanese larch was established by using multi-factor comprehensive descrip.

• 引用影响林分材种收获量的主要因子胸径、林龄、立地指数为参数 ,采用多因子综合描述的方法 ,建立了日本落叶松林分材种出材量预测模型H=a1Da2Aa3sia4,V=a1Da2Ha3。