DOI: 10.1016/j.foreco.2014.05.050
Scopus记录号: 2-s2.0-84907441615
论文题名: A compatible system of biomass equations for three conifer species in Northeast, China
作者: Dong L. ; Zhang L. ; Li F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 329 起始页码: 306
结束页码: 317
语种: 英语
英文关键词: Anti-logarithmic transformation
; Likelihood analysis
; Model error structure
; Non-linear seemingly unrelated regressions (NSUR)
Scopus关键词: Biomass
; Nonlinear equations
; Vegetation
; Anti-logarithmic transformation
; Likelihood analysis
; Model errors
; Multiplicative errors
; Prediction performance
; Seemingly unrelated regression
; Structural parameter
; Total tree biomass
; Forestry
; coniferous forest
; ecological modeling
; error analysis
; phytomass
; regression analysis
; China
; Coniferophyta
; Larix
; Larix gmelinii
; Picea
; Picea koraiensis
; Pinus koraiensis
英文摘要: A compatible system of biomass equations was developed for three major conifer species, Korean spruce (Picea koraiensis Nakai), Korean pine (Pinus koraiensis Sieb. et Zucc), and Dahurian larch (Larix gmelinii Rupr) in northeastern China. The model error structure (additive vs multiplicative) of the power function (Y= a Xb) was evaluated using a likelihood analysis. The results indicated that the assumption of multiplicative error structure was strongly supported for the biomass equations of total, sub-total, and tree components. Thus, a system of log-transformed biomass equations was developed using nonlinear seemly unrelated regression (NSUR), with three constraints on the structural parameters to account for the cross-equation error correlations between four tree component biomass (roots, stems, branches, and foliage), two sub-total biomass (aboveground and crown), and total tree biomass. The effectiveness of three anti-log correction factors for predicting the expected biomass in original scale was also assessed. Our results indicated that (1) the likelihood analysis can be used as a tool for rigorously evaluating the error structures of tree biomass equations and choosing an appropriate model form for the given biomass data; (2) the additive or compatible system of biomass equations with three constraints can be developed by NSUR to obtain favorable model fitting and prediction performance; and (3) the anti-log correction may not be necessary and sometimes can be ignored. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65807
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Management, School of Forestry, Northeast Forestry University, Harbin, Heilongjiang 150040, China; Department of Forest and Natural Resources Management, State University of New York, College of Environmental Science and Forestry (SUNY-ESF), One Forestry Drive, Syracuse, NY 13210, United States
Recommended Citation:
Dong L.,Zhang L.,Li F.. A compatible system of biomass equations for three conifer species in Northeast, China[J]. Forest Ecology and Management,2014-01-01,329