Height and Diameter Growth Modeling of Dahurian Larch Based on Nonlinear Mixed Model in Northeastern China Branch growth of Korean pine plantation based on nonlinear mixed model. A Stem Taper Model with Nonlinear Mixed Effects for Dahurian Larch Modeling Microibril Angle with Mixed Models for Dahurian Larch A site index model for Larix principisrupprechtii plantation in Saihanba, north China. Height-Diameter Relationship for Conifer Mixed Forest Based on Nonlinear Mixed-Effects Model