Additive nonlinear biomass equations: a likelihood-based approach

DLR Affleck, U Diéguez-Aranda - Forest Science, 2016 - academic.oup.com
… can be developed and fit within statistical frameworks built on valid probability models. … This
allows for importance-based weighting to overcome uncertainty-based weighting, although it …

Additional biomass estimation alternatives: nonlinear two-and three-stage least squares and full information maximum likelihood for slash pine

D Zhao, TB Lynch, JA Westfall… - Canadian Journal of …, 2022 - cdnsciencepub.com
… and the aggregated total biomass equation using a weighted nonlinear seemingly unrelated
regressions method (SUR, referred to as SUR1). The SUR1 approach has been used by …

[PDF][PDF] Harmonization of Transcontinental Allometric Models of Tree and Forest Stand Biomass on the Territory of Eurasia in the New Lighting.

VA Usoltsev, SOR Shobairi… - Nature Environment & …, 2018 - academia.edu
… additive values of biomass components is given in Table 1 in the form of three-step proportional
weighting additive procedure. … A three-step proportional weighting system of nonlinear

[HTML][HTML] Developing two additive biomass equations for three coniferous plantation species in Northeast China

L Dong, L Zhang, F Li - Forests, 2016 - mdpi.com
… , while foliage biomass had the smallest relative proportion … by multiplying the fresh weight
of each component by the dry/… equations W = a × D b and W = a × D b × H c using nonlinear

[HTML][HTML] Origin-based biomass allometric equations, biomass partitioning, and carbon concentration variations of planted and natural Larix gmelinii in northeast China

FRA Widagdo, L Xie, L Dong, F Li - Global Ecology and Conservation, 2020 - Elsevier
… models using weighted nonlinear seemingly unrelated … fixed proportion multiplied by the
predicted biomass value is … with weighted NSUR based on three different combinations of …

[HTML][HTML] Allometric equations for estimating the above-ground biomass of five forest tree species in Khangai, Mongolia

B Altanzagas, Y Luo, B Altansukh, C Dorjsuren, J Fang… - Forests, 2019 - mdpi.com
… interpreted as a three-step proportional weighting system, the … proportional weighting
system proved to be good for ensuring the additive property of nonlinear biomass model systems

Additive biomass equations for slash pine trees: Comparing three modeling approaches

D Zhao, J Westfall, JW Coulston… - Canadian Journal of …, 2019 - cdnsciencepub.com
biomass models, and their parameters were estimated by jointly fitting all component and
total biomass equations using weighted nonlinear … Based on these proportion equations, we …

[HTML][HTML] Additive Biomass Equations Based on Different Dendrometric Variables for Two Dominant Species (Larix gmelini Rupr. and Betula platyphylla Suk.) in …

L Dong, L Zhang, F Li - Forests, 2018 - mdpi.com
… The general tree biomass equation in this study is nonlinear … For each biomass equation of
both tree species, the weightbiomass accounted for the largest proportion of total biomass. …

[HTML][HTML] Product and Residue Biomass Equations for Individual Trees in Rotation Age Pinus radiata Stands under Three Thinning Regimes in New South Wales …

X Wang, H Bi, F Ximenes, J Ramos, Y Li - Forests, 2017 - mdpi.com
… fresh weight and 82% to 87% of product dry weight over the … equations in the proportional
allocation of product biomass to … developed four systems of nonlinear additive equations for …

[HTML][HTML] Evaluation of stand biomass estimation methods for major forest types in the eastern Da Xing'an Mountains, Northeast China

L Dong, L Zhang, F Li - Forests, 2019 - mdpi.com
… by the stand biomass data, a weighting function was defined … , a nonlinear model is assigned
to each of the stand biomass … stem biomass, and a higher proportion of stem biomass is …