A Dynamic Prediction of The Diameter Structure of Pinus yunnanensis Stands A COMPUTER MODEL ON THE MANAGEMENT OF CHINESE FIR PLANTATIONS-CHIFIR The Effects of Thinning on Forest Growth and Model Study Visual Simulation of Forest Growth Based on GPU and Terrain Paging Construction of mixed broadleaved and coniferous forest with high benefits and fire prevention Effect of Close-to-Nature Management on Species Diversity in a Cunninghamia lanceolata Plantation IMPACT OF FERTILIZATION ON CURRENT ANNUAL INCREMENT(CAI) OF YOUNG CHINESE FIR AND MAIN INFLUENCE FACTORS IN DIFFERENT AREAS