Effect of Density on Growth of Phyllostachys pubescens in Chongyang
Phyllostachys edulis (Moso bamboo)in Chongyang had been taken as research object.With 4 density stands, i.e,1 300±100 stems??hm-2 (D1),1 900±100 stems??hm-2 (D2),2 500±100 stems??hm-2 (D3)and 3 100±100 stems??hm-2 (D4),a study on stand density effect had been carried out,the results showed that although forest density had no effect on the shoot degenerated rate,it had a significant effect on bamboo shoot rate and stem rate,both presenting a trend of increasing at first and then decreasing.There was a significant difference for leaf area index among different density of stands,which increased with the increase of stand density with a range of 3 .1 8~7 .1 .The diameter at breast height was 10.75~11.75 cm,and the difference was extremely significant,and the average height was 12.96~13.33 m, and the difference was not significant.Both diameter distribution and height distribution of 4 density of P.edulis stands were normal distribution.