Above-ground Biomass and N, P and K Content in Different AgedPhyllostachysnuda

Establishment of 4 sample plots was implemented at1-3-year Phyllostachysnudaforest in Lishui, Zhejiang province in August of 2017. Determinations were carried out on above ground biomass and N, P and K content. The results showed that above ground biomass of every agedPh. nuda was ordered by culm>branch>leaf. Mean N, P and K content in above ground parts was followed by leaf>branch>culmof nutrient elements in different organs distribution of patterns indicated that the leaf ＞branch＞culm. The mean content of N,P,K in leaf,branch and culm was 18.65,4.91 and 2.22 g?kg-1, 0.71,0.50,0.45g?kg-1 and 6.29,5.52,4.81g?kg-1. With increase age, the N, P and K content in leaves decreasedfirst and then increased, while that content in branch and culm decreased gradually.Distribution rateof N was 60.2% in the leaf, of P and K was 45.8%, 47.7% in culm.