RT Journal Article
T1 Improving biomass estimation in a Populus short rotation coppice plantation
A1 Oliveira Rodríguez, Nerea de
A1 Rodríguez Soalleiro, Roque
A1 Hernández, María José
A1 Cañellas Rey de Viñas, Isabel
A1 Sixto Blanco, Hortensia
A1 Pérez Cruzado, César
K1 Poplar
K1 Allometric models
K1 Age-influence
K1 Mean deviation
AB Short Rotation Coppice (SRC) plantations are important to biomass supply in the biomass market. The biomass stocks estimations should be based on robust models that allow the most accurate estimations. We have evaluated the changes in allometry for the estimation of biomass production at individual stool level in a short rotation, high density poplar plantation under a coppice system during two rotations of three years. The plantation was established in central-northern Spain, with a density of 17,316 stools ha−1. The influence of different factors in the allometry has been evaluated to improve the methodology for more robust biomass prediction. In an SRC system, the influence of age was more pronounced in the first year after each coppicing than in subsequent years of the cycle. Our findings suggest that this feature of nature must be accommodated in the modelling procedure either through the model formulation (decreasing the parameter variability with the inclusion of age as a dummy predictor variable) or by selecting the sample according to the stage of development of the above-ground biomass (which will depend on the goals of the predictions). The minimum sample size proposed to construct a model capable of predicting biomass regardless of age in SRC was 50 trees. Furthermore, the uncertainty was quantified in two models for total above-ground dry woody biomass, the first based only on the basal diameter and the other on the basal diameter along with the number of shoots per stool; the inclusion of the latter was advisable to increase the accuracy and reduce the mean deviation in biomass predictions at different ages.
PB Elsevier
YR 2017
FD 2017
LK https://hdl.handle.net/10347/40788
UL https://hdl.handle.net/10347/40788
LA eng
NO Oliveira Rodríguez, N., Rodríguez Soalleiro, R., Hernández, M. J., Cañellas Rey de Viñas, I., Sixto Blanco, H. & Pérez Cruzado, C. (2017). Improving biomass estimation in a Populus short rotation coppice plantation. Forest ecology and management, 391, 194–206. https://doi.org/10.1016/j.foreco.2017.02.020
NO This is the author’s version of the work. The definitive version was published in Forest ecology and management, vol. 391 (2017), available online at: https://doi.org/10.1016/j.foreco.2017.02.020
NO This research was supported by the Ministry of Economy and Competitiveness of Spain (DECOCEL IPT 2011-1220-920000 and RTA 2011-00006-00-00).
DS Minerva
RD 28 abr 2026