Groei en productie van grove den in Nederland

J.J. Jansen, G.M.J. Mohren, A. Oosterbaan, L. Goudzwaard, J. den Ouden

Research output: Book/ReportReportProfessional

Abstract

In the Netherlands, growth and yield research on Scots pine was done from 1949 to 2002. 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 94 plots with 348 recordings. For the development of top height htop with age (t), Cieszewski’s model with site index h70 and 3 additional parameters fitted best. The diameter development up to stand height of 7 m was best 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 best described by a power func-tion based on htop, calendar year (yor), h50 and the stand density index of Hart (S%). For S % > 20.6 the basal area increment drops strongly with increasing S %. The effect of thinning on diameter after thinning was modelled with a modified La Bastide-Faber model. With all models together, a stand projection model was constructed, which follows the measured stand development reasonably well. The model was used to construct yield tables with five site classes and four thinning intensities.
Original languageDutch
Place of PublicationWageningen
PublisherWageningen University & Research
Number of pages87
DOIs
Publication statusPublished - 2018

Publication series

NameFEM Groei en Productie rapport
No.2018 - 3

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