四川柏木材种出材率表的编制  

Construction of Merchantable Volume Tables of Chinese Weeping Cypress in Sichuan

作　　者：杨洪国[1] 刘兴生[1] 李治宇[1] 程德荣 

机构地区：[1]四川省林业调查规划院,成都610081 [2]仁和区林业局,攀枝花617061

出　　处：《四川林勘设计》2010年第4期1-4,共4页Sichuan Forestry Exploration and Design

摘　　要：在总结国外编制材种出材率表、商品材积表的基础上,应用三次样条函数建立相对干曲线模型。并对干形进行分类,进而转化为绝对干曲线模型,结合二元材积表进行造材和编表,该方法克服了削度方程和材积比方程以平均干形建模造成的误差,同时,和材积表很好地结合起来,使数表配套。Summarized the construction of merchantable volume tables and commodity volume tables at home and abroad, this paper built the relative stem form model applying cubic spline function, converted the relative stem form model into absolute stem form model through stem form classification, and construct the merchantable volume tables joining with dual volume table. This method of constructing tables overcame the error existed in taper equation and volume ratio equation modeling with average stem form, and assorted with volume tables commendably.

关 键 词：柏木 相对干型 三次样条函数 材种出材率 

分 类 号：S757.46[农业科学—森林经理学]