DOI: 10.1016/j.foreco.2012.12.023
Scopus记录号: 2-s2.0-84872861594
论文题名: Modeling volume expansion factors for temperate tree species in France
作者: Longuetaud F. ; Santenoise P. ; Mothe F. ; Senga Kiessé T. ; Rivoire M. ; Saint-André L. ; Ognouabi N. ; Deleuze C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 292 起始页码: 111
结束页码: 121
语种: 英语
英文关键词: BEF
; Biomass
; Nonlinear mixed-effects model
; VEF
; Volume
Scopus关键词: 10-fold cross-validation
; BEF
; Data sets
; Diameter class
; Diameter-at-breast heights
; Expansion factors
; General knowledge
; Large database
; Quercus
; Species-specific traits
; Stem merchantable volume
; Stem volume
; Temperate trees
; Tree height
; Tree species
; VEF
; Volume
; Volume expansion
; Biomass
; Forecasting
; Forestry
; calibration
; data set
; database
; deciduous forest
; diameter
; ecological modeling
; error analysis
; gymnosperm
; nonlinearity
; phytomass
; stem
; temperate forest
; volume change
; Biomass
; Forecasts
; Forestry
; Volume
; France
; Abies
; Carpinus
; Fagus
; Fraxinus
; Gymnospermae
; Magnoliophyta
; Picea
; Quercus
英文摘要: The objective of this study was to model the volume expansion factor (VEF), defined as being the ratio between the total aboveground woody volume and the stem merchantable volume of a tree, as a function of tree height and diameter at breast height.A large database (dataset #1) of detailed stem and branches volume measurements, constituted by 8192 felled trees from 19 temperate tree species, was used for calibrating the models. In addition, an independent dataset (dataset #2), constituted by 176 felled trees from 13 species, was collected for validating the models. From dataset #1, the RMSE for the prediction of the total volume varied from 0.005 to 0.476m3, depending on the diameter class, and the corresponding relative RMSE varied from 8.0% to 13.7%, depending on the diameter class.A 10-fold cross-validation on dataset #1 gave an average RMSE of 0.136 for the prediction of the VEF and of 0.150m3 for the prediction of the total volume, which was in the same order as average RMSE obtained from the whole dataset #1. Validation on dataset #2 gave satisfactory results, even for the application of VEF to other tree species: RMSE obtained for the different tree species were in the same order as RMSE obtained from calibration dataset #1, except for some particular cases. The largest errors were obtained when the model was clearly used in extrapolation, e.g., for five large-size Fraxinus (whereas dataset #1 included smaller trees) and several Quercus and Fagus from coppice-with-standards stands (whereas dataset #1 included mainly pure even-aged high-forest trees). The observed differences between species seemed consistent with the general knowledge about species-specific traits. For a given diameter at breast height, angiosperms were found to have a much larger volume of branches in comparison with the corresponding stem volume than gymnosperms. For a tree of 30. cm in diameter, the lowest values of VEF were obtained for Picea and Abies (VEF< 1.1) and the highest ones for Fraxinus and Carpinus (VEF> 1.3). The methodology that was developed, based on nonlinear mixed-effects modeling, is easily applicable to other definitions of VEF or biomass expansion factors. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66730
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: INRA, UMR1092 LERFoB, 54280 Champenoux, France; INRA, Unité Biogéochimie des Ecosystèmes Forestiers, 54280 Champenoux, France; AgroParisTech, UMR1092 LERFoB, 54000 Nancy, France; ONF, Département R and D, 54840 Velaine en Haye, France; ONF, Département R and D, 39100 Dole, France; Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles, BP 1291, Pointe-Noire, Democratic Republic Congo; CIRAD, UMR Eco and Sols - Ecologie Fonctionnelle and Biogéochimie des Sols and Agrosystèmes, Montpellier SupAgro-CIRAD-INRA-IRD, 34060 Montpellier, France
Recommended Citation:
Longuetaud F.,Santenoise P.,Mothe F.,et al. Modeling volume expansion factors for temperate tree species in France[J]. Forest Ecology and Management,2013-01-01,292