Variation Analysis on Anatomical Properties and Chemical Compositions between Chinese White Poplar and Burl Anatomical Properties of Compression Wood of Three-Year-old Loblolly Pine Induced by Artificial Inclination Study on the Anatomical Properties and Variation of Sand Covered Poplar Grown in the Beaches of Yangtze River VARIATION WITHIN TREE OF WOOD ANATOMICAL PROPERTIES AND BASIC DENSITY OF I-214 POPLAR IN BEIJING AREA AND THEIR RELATIONSHIP MODELLING EQUATIONS The Research and Development of Rattan Utilization Prediction of Mature Wood Anatomical Properties of Pinus banksiana Plantation Based on Support Vector Machines (SVM) Dynamic Changes in Cambial Anatomy and Xylem Cell Differentiation of Shoots in Populus tomentosa Effects of Planting Density on Wood Anatomical Properties of Populus×xiaohei Genetic Variation of Leaf Traits at Different Canopy Positions of Section Aigeiros Clones and Indirect Selection for Growth