北京林业大学学报2013，Vol.35Issue(2)：1-9,9.
长白山林区14种幼树生物量估测模型
Biomass estimating models of saplings for 14 species in Changbaishan Mountains, northeastern China
摘要
Abstract
Randomly sampling saplings with Dl 3 ≤2. 5 cm for 14 species in the Changbaishan Mountains region of northeastern China, we established and validated organs and whole plant biomass models for each of the 14 species. It was found that sapling organs and whole plant biomass can be modeled accurately by the power function when ground diameter ( D0 ) or the product of ground diameter and height (D20H) taken as the independent variables. The correlation coefficient R2 ranged between 0. 712 and 0. 983 and SEE( standard error of the estimate) was lower (0. 217-1. 122). With respect to estimation accuracy and taking R as the fitting statistics, sapling organs and whole plant biomass models were in the following descending accuracy order; whole plant biomass > aboveground biomass > branch biomass > underground biomass > leaf biomass. It is validated that the fitted models can give accurate estimates for sapling organs and plant biomass when ground diameter taken as the independent variable. However, using the product of ground diameter and height as the independent variable, the fitted models yield accurate estimates only for 8 species saplings such as Amorpha fruticosa, Acer mandshuricum, etc. , but not for some organs or whole plant biomass for the other 6 species,such as Pinus koraiensis and Acer triflorum,etc.关键词
幼树/生物量/估测模型/长白山Key words
sapling/ biomass/ estimation models/ Changbaishan Mountains分类
农业科技引用本文复制引用
范春楠,庞圣江,郑金萍,李兵,郭忠玲..长白山林区14种幼树生物量估测模型[J].北京林业大学学报,2013,35(2):1-9,9.基金项目
中国科学院战略性先导科技专项(XDA05050201)、"十二五"农村领域国家科技计划课题(2011BAD37B0102)、国家自然科学基金项目(30770369). （XDA05050201）
