Magnolia biloba is famous Chinese traditional medicine., it has close-grained and beautiful timber. The paper based on experiments of 18-old-year Magnolia biloba in Hu-fang Country. A serial of experiments opened out: (1) rules of aerial part growth; (2) rules of underground part growth; (3) correlation between aerial part and underground part; (4) rules of skinning and regeneration; (5) Distribution of biomass in Magnolia biloba plantation; (6) productivity of the stand; (7) distribution of leave area inde...