In the Netherlands growth and yield research on common oak was done from 1947 to 2004. This includes studies by Becking and by the Dorschkamp/IBN research institute. Together with the permanent sample plots from the timber prognosis system HOSP, all this comprises a dataset of 87 plots with 434 recordings. For the development of top height htop with age t Cieszewski’s model with site index h70 and three additional parameters fitted best. The diameter development up to stand height of 7 m was described with the model by Jansen et al. based on htop and initial density (N0). From a stand height of 7 m and up, the basal area increment (iG) was also described by another model by Jansen et al. based on a power function with htop, age, year of recording (yor), and the stand density of Hart (S %). For S% > 21.8 the basal area increment drops strongly with increasing %. The model contains a correction factor for yor; for the period since 1981, this factor is 15 % above the level of the period 1934 until 1980. The effect of thinning on the diameter after thinning was modelled with a modified La Bastide-Faber model. With all models together, a stand projection model was constructed, which describes the measured stand development reasonably well. The model was used to construct yield tables for with five site classes and five thinning intensities.
|Place of Publication||Wageningen|
|Publisher||Wageningen University & Research|
|Number of pages||87|
|Publication status||Published - 2018|
|Name||FEM Groei en Productie rapport|
FEM growth and yield data monocultures - Common Oak (revised version)
Oosterbaan, A. (Creator), Jansen, J. J. (Creator), Goudzwaard, L. (Creator), Oldenburger, J. F. (Creator), Mohren, F. (Creator) & den Ouden, J. (Creator), Wageningen University & Research, 18 Oct 2016