相容性杉木人工单木二元材种出材率模型  

Compatible Individual Tree Two-way Merchantable Volume Model of Cunninghamia Lanceolata Plantation

作　　者：黄朝法 HUANG Chaofa(Fujian Forestry Survey and Planning Institute,Production Technology Room,Fuzhou,Fujian 350003)

机构地区：[1]福建省林业调查规划院生产技术室

出　　处：《武夷学院学报》2019年第6期33-37,共5页Journal of Wuyi University

基　　金：森林生长动态预测模型及林业数表研制(2018)

摘　　要：为编制杉木单木二元材种出材率表,通过采集福建各地杉木人工林大样木数据,结合散点分析了各规格材种出材率曲线和结构规律,采用二级非线性模型联合估计法构建了相容性材种出材率模型,利用蚁群算法拟合模型参数,经系统误差、平均误差、剩余标准差和均方差等检验。结果表明,经济材、规格材、大原木显上升型曲线,薪材、废材、短小材下降型曲线,非规格材、小原木、中原木、小径材显先升后降型曲线;建立的相容性二元材种出材率模型的系统误差(±5%)、平均误差(±5%)、剩余标准差(±10%)和均方差(±5%)精度符合林业生产实践要求,可用于林业生产实践上。In order to establish individual tree two-way merchantable volume table of cunninghamia lanceolata plantation,large DBH sample trees of cunninghamia lanceolata plantation were collected from various regions in Fujian Province.Outturn rate curves and structure law of diverse dimension lumbers were analyzed by scatter diagram.Two step nonlinear joint estimation was used to construct compatible merchantable volume model,model parameters were estimated by ant colony algorithm and tested by systematic error,average error,residual standard deviation and mean square deviation.Results showed that curves of assortment logs,dimension lumbers and larger logs were ascending slope,curves of fuel wood,refuse wood and short and small timbers were descending type,curves of non-dimension lumbers,batten,medium logs and small diameter logs were peak shape;precisions of systematic error(±5%),average error(±5%),residual standard deviation(±10%)and mean square deviation(±5%)of fitted compatible two-way merchantable volume model accorded with requirements of forestry production practice.The model could be used in forestry production practice.

关 键 词：杉木人工林 材种出材量 出材率模型 蚁群算法 福建省 

分 类 号：S758.62[农业科学—森林经理学]