柳杉单木直径生长及形状指数模型

Studies on Single Tree Crowth Model and Shape Index Model for Cryptomeri fortunei Stands

以ＶｏｎＢｅｒｔａｌａｎｆｆｙ生长理论为基础，用简单竞争指数建立柳杉人工林单木生长模型．从密度对于形影响的一般规律出发，分析简单竞争指数与形状指数的关系，建立形状指数模型，为立木材积的测算提供一条新的途径．

Based on the growth theory of Von Bertalanffy, this paper built the single tree growth model for Cryptomeria fortunei stands by using simple competition index, By means of general rule that density affects stem shape, analysed the relationship between simple competition index and shape index,and established shape index model, so as to provide a new way for volume measurement of standing trees.