In the paper we study on the absorption of light, values of leaf area or leafarea index, photosynthetic rates and photosynthetic productivity for four artificial forests in Dian Bai County, Guang Dong. The biological productions and the utilization ratio of sun light energy are compared. The results show that the multistorey artificial communities have fine ecological effects and economical benefits. Therefore the construction of multistorey and multispecific a-rtificial communities is needful. By reason of...