RT Journal Article
T1 Dynamic stand growth model for Norway spruce forests based on long-term experiments in Germany
T2 Modelo dinámico de crecimiento de bosques de Picea abies (L.) Karst. en Alemania
A1 Hevia Cabal, Andrea
A1 Vilcko, František
A1 Álvarez González, Juan Gabriel
K1 GADA equations
K1 Simultaneous fitting
K1 Picea abies
AB In the present study a dynamic stand growth model for Norway spruce (Picea abies (L.) Karst.) forestswas developed from data of 99 research plots, which had been measured between one and seventeen times in northwestern and southern Germany. In this model, the initial stand conditions at any point in time are defined by three state variables (dominant height, basal area and number of trees per hectare), and they are used to estimate stand volume for a given projection age. The model usesthree transition functions to project the stand state variables at any particular time and a state function to estimate the stand volume. Two of these transition functions were derived by expanding a base model and considering two sitespecific parameters and the third one was derived considering one site-specific parameter. All the functions were fitted simultaneously using full information maximumlikelihood and the base-age-invariant dummy variables method. The values of the critical error statistic for stand volume and the RMSE relative to the mean stand volume indicated that the overall model provides satisfactory predictions for time intervals up to 25 years
PB Universidade de Santiago de Compostela. Servizo de Publicacións e Intercambio Científico
YR 2013
FD 2013
LK http://hdl.handle.net/10347/16271
UL http://hdl.handle.net/10347/16271
LA eng
NO Hevia, A., Vilcko, F., & Álvarez-González, J. (2013). Dynamic stand growth model for Norway spruce forestsbased on long-term experiments in Germany. Recursos Rurais, 9, pp. 45-54. Recuperado de http://www.usc.es/revistas/index.php/rr/article/view/1695
DS Minerva
RD 28 abr 2026