The Effect of Site and Cultivation Model on Growth of Castanopsis hystrix

The investigation on Castanopsis hystrix in the range of the Experimental Centre show that the plant’s growth is greatly effected by site,the growth of the plants grow on deep soil layer is obviously better than those grow on shallow poor layer,those growing on the soil accumulated with fertile soil on the slope are better than those on original soil.At the same slope for the same plant,at its lower slope the volume reached 107.80 m3·hm-2,while its upper slope,16.63 m3·hm-2.The growth of the plant is also affected by the altitude,mixed stand is better than pure stand.The stand with 1:6 mixed ratio(C.hystrix:Pinus massoniana),the plant grow the better,its DBH volume is obviously greater than that of the pure stand, its tree height is 8.2% higher than the pure stand,stand volume is 138.9% higher. After all,1:4 mixed ratio is better for the plant’s management.