Abstract:

This study was performed in Mongolian Scots Pine (Pinus sylvestris var. mongolica) plantations in Maoershan experiment forest centre of northeast forestry university. Based on stem and branch analysis，data were collected from 53 sample trees in 15 plots with different ages，site conditions and densities in 2002 and 2003. The variables of 2 298 branches were measured in this paper，which included depth into crown，branch azimuth，branch angle，branch diameter，branch length，branch chord and height of branch bow. Based on theory and experience growth model，the crown static models and dynamic growth models of Mongolian Scots Pine plantations were developed in this study. The crown threedimensional visualization dynamic graphics simulation system of Mongolian Scots Pine was established on the developing platform of VC++6.0 language and OpenGL through the combination of growth model and configuration structure model. The visualization simulation of static and dynamic single tree and stand based on actual measurement data and growth model was realized in this paper.

Key words: Mongolian Scots Pine (Pinus sylvestris var. mongolica) plantation, crown structure, static model, dynamic model, visualization simulation