Association between environmental factors and growth of bamboo species Bashania spanostachya ,the food of giant and red pandas
相岭山系大、小熊猫主食竹类峨热竹的生长发育与环境因子间的相互关系

A study on the association between the environmental factors and bamboo Bashania spanostachya growth(culm height,culm basal diameter,density,shoot generation,proportion of old shoots and death rate of adult culms),was conducted from 1994 to 1996 in Yele Natural Reserve,Sichuan Province.The results showed that the environmental factors such as canopy cover,slope,aspect,altitude significantly influenced the bamboo growth.As the altitude increased,bamboo culms became shorter and slender,and proportion of old shoots decreased.Culm density,shoot generation rate and death rate of adult culms decreased with the canopy increasing.Furthermore,the bamboo culms became sparser,shorter and slender as the slope increased.