福建省5种造林树种幼苗生物量估测模型  

Estimation Models for Sapling Biomass of Five Types of Afforestation Trees in Fujian Province

作　　者：马玉珠[1] 程栋梁[1] 钟全林[1] 徐朝斌[1] 靳冰洁[1] 

机构地区：[1]福建师范大学地理科学学院/湿润亚热带山地生态国家重点实验室培育基地,福建福州350007

出　　处：《江西农业大学学报》2013年第6期1199-1205,共7页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家自然科学基金项目(31170374;31170596;31370589);福建省高等学校新世纪优秀人才支持计划(JA12055);福建省杰出青年基金项目(2013J06009)

摘　　要：马尾松(Pinus massoniana)、杉木(Cunninghamia lanceolata)、刨花楠(Machilus pauhoi)、闽楠(Phoebe bournei)和木荷(Schima superba)是福建省常见树种,选取基径(D)、株高(H)、冠幅宽度(C)及复合变量D2、D2H、CA(canopy area,冠层面积)和CV(canopy projected volume,冠层投影体积)作为自变量,选用5种回归方程构建幼苗生物量估测模型,结果表明:以CV和D2H作为自变量时,模型的拟合效果最好;5种苗木生物量最优估测模型多为二次多项式和幂函数形式。幼苗生物量估测模型对快速准确判别苗木优劣具有重要理论意义。Pinus massoniana, Cunninghamia lanceolata, Machilus pauhoi, Phoebe bournei and Schima su-perba are common trees in Fujian Province.In this study ,basal diameter （D）, height （H）, crown width （C）and compounded variables D2 ,D2H, CA （canopy area） and CV（ canopy projected volume） were chosen as in-dependent variables and five types of regression functions were used to construct estimation models for sapling biomass.The result showed that when CV and D2H were chosen as independent variables, the fitted effect of models was the best.The types of best estimation models were mostly of quadratic polynomial and power func-tion.Estimation models for sapling biomass will provide valuable insights into judgement saplings＇ quality quickly and accurately.

关 键 词：冠层面积 冠层投影体积 造林苗木 生物量模型 幂函数 

分 类 号：S723.9[农业科学—林木遗传育种]