应用生态学报2017，Vol.28Issue(10)：3189-3196,8.DOI:10.13287/j.1001-9332.201710.018
天然云杉相容性生物量估算模型
Compatible biomass models of natural spruce (Picea asperata)
摘要
Abstract
By using nonlinear measurement error method,the compatible tree volume and aboveground biomass equations were established based on the volume and biomass data of 150 sampling trees of natural spruce (Picea asperata).Two approaches,controlling directly under total aboveground biomass and controlling jointly from level to level,were used to design the compatible system for the total aboveground biomass and the biomass of four components (stem,bark,branch and foliage),and the total-ground biomass could be estimated independently or estimated simultaneously in the system.The results showed that the R2 of the one-variable and bivariate compatible tree volume and aboveground biomass equations were all above 0.85,and the maximum value reached 0.99.The prediction effect of the volume equations could be improved significantly when tree height was included as predictor,while it was not significant in biomass estimation.For the compatible biomass systems,the one-variable model based on controlling jointly from level to level was better than the model using controlling directly under total above-ground biomass,but the bivariate models of the two methods were similar.Comparing the imitative effects of the one-variable and bivariate compatible biomass models,the results showed that the increase of explainable variables could significantly improve the fitness of branch and foliage biomass,but had little effect on other components.Besides,there was almost no difference between the two methods of estimation based on the comparison.关键词
天然云杉/立木材积/地上生物量/相容性/度量误差模型Key words
natural spruce/tree volume/aboveground biomass/compatibility/error-in-variable model引用本文复制引用
王金池,邓华锋,黄国胜,王雪军,张璐..天然云杉相容性生物量估算模型[J].应用生态学报,2017,28(10):3189-3196,8.基金项目
本文由北京市教育委员会科学研究与科研基地建设项目(省部共建重点实验室)、国家林业公益性行业科研专项(201204510,201504303)和三峡库区生态屏障区生态效益监测技术与评价方法研究项目(2016K-1)资助 This work was supported by the Science Research and Research Base Construction of Beijing Municipal Commission of Education (the Key Laboratory Co-constructed by Ministry of Education and Beijing),the Special Fund for Forest-Scientific Research in the Public Interest (201204510,201504303),and the Research on Monitoring Technology and Evaluation Method of Ecological Barrier in the Three Gorges Reservoir Area (2016K-1). （省部共建重点实验室）
