Modeling and Impact Analysis on Distribution Prediction of Forest Tree Species in Northeast China Based on Climate Change Light energy utilization and dissipation in seedlings of three tropical rain forest tree species with different ecological habits Effects of growth light intensities on photosynthesis in seedlings of two tropical rain forest species The Silviculture of Calophyllum polyanthum (Guttiferae)in China A Preliminary Discussion on the Conservation Strategy of Germplasm Resources of Yunnan Forest Tree Species