Effect of Thinning on Growth and Timber Outturn in Cunninghamia lanceolata Plantation Dynamics of stand biomass and volume of the tree layer in forests with different restoration approaches based on tree-ring analysis Compatibility of Stand Volume Model for Chinese Fir Based on Tree-Level and Stand-Level Influence of Human Disturbance on Community Structure and Tree Species Diversity of Secondary Forests on Northern Slope of Mt. Changbai Comprehensive Evaluation of the Effects Planting in Swamp-Forest in Daxing‘an Mountains Study on Growth Dynamics of Tropical Secondary NaturalForest on Hainan Island THE METHOD OF FORM POINT FOR MEASURING STAND VOLUME ON THE POINT OF ANGLE GAUGE