(五)楠竹林叶面积指数与产量的关系楠竹林一般为隔年更新,即一年大量发筍成竹,一年为生鞭换叶,交替进行。换叶时,老叶着生在枝顶枯死、脱落、侧芽萌发新叶.其叶量随着年龄的增大而减少(表9),但立地 (E) Phyllostachys pubescens leaf area index and yield relations Bamboo forest is generally updated every other year, that is, a year a large number of bamboo shoots into bamboo shoots, a year for whip change leaves, alternately. Leaf replacement, the old leaves dead at the top of the tree dead, fall off, lateral bud germination of new leaves, its leaf volume decreases with age (Table 9), but the site