HUANG He,YANG Chen,LI Zhu,et al.Prediction of Tensile Modulus of Elasticity of Earlywood and Latewood from Hybrid Larch[J].Chinese Journal of Wood Science and Technology,2025,39(06):26-32. DOI: 10.12326/j.2096-9694.2025086.
Prediction of Tensile Modulus of Elasticity of Earlywood and Latewood from Hybrid Larch
earlywood (EW) and latewood (LW) tissue slices were taken from the outermost five growth rings of hybrid larch (
Larix kaempferi
5
×L. gmelinii
9) at 5
14
29
and 40 years with an aim at revealing the variation of air-dry density and tensile modulus of elasticity (MOE)
as well as their correlation. Furth
ermore
a tabular prior-data fitted network (TabPFN) model was employed to simulate and predict tensile MOE. Results showed that
at any given tree age
a positive correlation was observed between the tensile MOE and air-dry density for both EW and LW
with the coefficients of determination (
R
²) being higher for LW than for EW. The combined fitting of EW and LW data yielded significantly better results than individual fittings
with
R
2
ranging from 0.94 to 0.97. A prediction model constructed based on TabPFN deep learning enabled the prediction of tensile MOE of EW and LW in hybrid larch
with a mean absolute percentage error (MAPE) of 16.03% between predicted and experimental values. These findings could support the prediction of tensile MOE of larch wood for rapidly evaluating wood quality.
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