Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    FEM growth and yield data monocultures - Norway spruce (revised version)
    Jansen, J.J. ; Oosterbaan, A. ; Goudzwaard, L. ; Oldenburger, J.F. ; Boosten, M. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen University & Research
    growth and yield - even-aged monoculture forest - tree diameter - tree height - crown class - coordinates stem positions - age - top height - dominant height - monitoring - Norway spruce - Picea abies - dominant diameter
    In this revised edition, 28 test plots were added from the former Stichting Industriehout. This database is part of the FEM growth and yield database, a collection of growth and yield data from even-aged monocultures.
    FEM growth and yield data Monocultures - Black alder
    Boosten, M. ; Jansen, J.J. ; Oosterbaan, A. ; Copini, P. ; Oldenburger, J.F. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen University & Research
    growth and yield - even-aged monoculture forest - tree diameter - tree height - crown class - coordinates stem positions - age - top height - dominant height - dominant diameter - monitoring - Black Alder - Alnus glutinosa
    This database is part of the FEM growth and yield database, a collection of growth and yield data from even-aged monocultures. In the first edition of the database, the data of Black Elder were part of the dataset “FEM growth and yield data Monocultures – Other species”.
    FEM growth and yield data monocultures - Other species (revised version)
    Goudzwaard, L. ; Jansen, J.J. ; Oosterbaan, A. ; Oldenburger, J.F. ; Boosten, M. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen University & Research
    growth and yield - even-aged monoculture forest - tree diameter - tree height - crown class - coordinates stem positions - age - top height - dominant height - Black locust - Robinia pseudocacia - European hornbeam - Carpinus betulus - European larch - Larix decidua - Elm - Ulmus species - Eastern white pine - Pinus strobus - Lodgepole pine - Pinus contorta - Maritime pine - Pinus maritima - Port Orford cedar - Chamaecyparis lawsoniana - Sweet chestnut - Castanea sativa - Serbian spruce - Picea omorika - Silver fir - Abies alba - Western hemlock - Tsuga hetrophylla - Western red ceder - Thuja plicata - Wild cherry - Prunus avium
    In this version 13 new plots of White elder and 13 new plots of Sitka spruce were added, both from the collection of the former Stichting Industriehout. This database is part of the FEM growth and yield database, a collection of growth and yield data from even-aged monocultures.
    FEM growth and yield data Monocultures - Poplar (2nd revised version)
    Mohren, G.M.J. ; Goudzwaard, L. ; Jansen, J.J. ; Schmidt, P. ; Oosterbaan, A. ; Oldenburger, J.F. ; Ouden, J. den; Copini, P. - \ 2018
    Wageningen University & Research
    growth and yield - even-aged monoculture forest - tree diameter - tree height - crown class - coordinates stem positions - age - mean height - spacing - without thinning - systematic thinning - monitoring - Poplar - Aspen - Populus species - Populus x canadensis - Populus x interamericana - Populus alba - Populus tremula
    In this new version, the data of 227 test plots of the former Stichting Industriehout were added. Also the location information of the test plots of the Dorschkamp/IBN were added. This database is part of the FEM growth and yield database, a collection of growth and yield data from even-aged monocultures.
    Replacement of foot-and-mouth disease virus cattle tongue titration by in vitro titration
    Dekker, Aldo ; Hemert-Kluitenberg, Froukje van; Oosterbaan, Anna H. ; Moonen, Kimberly ; Mouton, Laure - \ 2018
    Altex 35 (2018)4. - ISSN 1868-596X - p. 489 - 494.

    Titration of foot-and-mouth disease cattle challenge virus in cattle tongue has been the standard for many years in many countries, although titration in animals has been replaced by in vitro methods for all other applications. The objective of the analysis was the replacement of in vivo titration of cattle challenge virus by in vitro titration. Using data from 32 in vivo titration experiments together with the in vitro titration results of the same samples obtained by plaque count on primary lamb or pig kidney cells, as well as data from the virus isolation control chart used in the laboratory, we show that the reproducibility of the in vitro titration is much higher than that of the in vivo titration. The titer on primary kidney cells was on average 1.4 log10 higher than the titer determined by titration in cattle tongue (PFU/ml compared to bovine ID50/ml), but the difference varied among different strains. The study also shows that the probability of infection in cattle tongue is high even when a lower challenge dose is used, which makes the variability between strains less important. Based on these results, we propose to change the standard dose for cattle challenge from 104 bovine ID50 to 105.4 PFU, and to replace the in vivo cattle tongue titration method with the in vitro titration method.

    Opbrengsttabellen Nederland 2018
    Jansen, Hans ; Oosterbaan, Anne ; Mohren, G.M.J. ; Goudzwaard, L. ; Ouden, J. den; Schoonderwoerd, H. ; Thomassen, E.A.H. ; Schmidt, P. ; Copini, P. - \ 2018
    Wageningen : Wageningen Academic Publishers - ISBN 9789086868766 - 172
    In deze bundel zijn opbrengsttabellen van 15 boomsoorten opgenomen. In vergelijking met de tot nu toe geldende opbrengsttabellen uit 1996, bevat deze bundel meer soorten, meer dunningregimes, en zijn alle tabellen gebaseerd op Nederlandse meetgegevens. Voor 10 soorten zijn tabellen met zowel een matige als sterke dunning opgenomen. Voor de Japanse Lariks zijn twee regionale tabellen opgenomen. De populier heeft in deze bundel een tabel voor bomen in lijnbeplanting, naast de tabellen voor bos met diverse plantverbanden. Per soort is het rapport van de onderliggende studie weergegeven. Al deze studies volgden in grote lijnen de studie Groei en productie van douglas in Nederland. Becking's dunningproeven ontsloten. In vergelijking met de studies uit 1996, blijkt enerzijds de hoogtegroei per boniteit te verschillen (slechte boniteiten starten lager dan goede boniteiten, maar halen de groei later deels in). Anderzijds blijk de range tussen de beste en slechtste boniteit vaak ruimer dan in de eerdere studies.
    Groei en productie van zwarte els in Nederland
    Jansen, J.J. ; Oosterbaan, A. ; Mohren, G.M.J. ; Copini, P. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-10) - 47
    In the Netherlands growth and yield research on black alder was done on a limited scale from 1965 to 1990. This regards two studies by the Dorschkamp/IBN research institute; together with the permanent sample plots from the timber prognosis system HOSP, this comprises a dataset of 14 plots with 59 recordings. In addition, the information from 518 stands of the Fourth National Forest Inventory was used. For the development of top height htop with age t Jansen’s et al. polymorphic model with site index h50 and four additional parameters fitted best. The diameter at a height of 7 m (d7) was estimated from data of the Fourth National Forest Inven-tory. The diameter development up to stand height of 7 m was described with a model of Jansen et al., a power function in htop and the estimated value for d7. From a stand height of 7 m upwards, the basal area increment (iG) was also described by Jansen’s et al. model based on a power function with t, year of recording (yor), and the stand density of Hart (S %). For S% > 15.7 the basal area increment decreases non-linear with increasing S %. The model contains a correction factor for yor, although this was not significant, as the year of recording (yor), turned out to be not significant. The effect of thinning on the diameter after thinning was modelled with the La Bastide-Faber model. The models were used to construct a yield table with five site classes and one thinning intensity.
    Groei en productie van ruwe berk in Nederland
    Jansen, J.J. ; Oosterbaan, A. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-13) - 41
    In the Netherlands growth and yield research on silver birch was done from 1982 to 1994. This includes studies by the Dorschkamp/IBN research institute and by Wageningen University. To-gether with the permanent sample plots from the timber prognosis system HOSP, this comprises a dataset of 43 plots with 132 recordings. For the development of top height htop with age t Cieszewski’s polymorphic model with site index h50 and three additional parameters fitted best.The diameter at a height of 7 m (d7) was estimated with the plot data and with the data of the Fourth National Forest Inventory, and the average of both estimates was chosen. The diameter develop-ment up to stand height of 7 m was described with a model of Jansen et al., a power function in htop and the estimated value for d7. From a stand height of 7 m upwards, the basal area increment (iG) was also described by Jansen’s et al. model based on a power function with h50, t, year of recording (yor), and the stand density of Hart (S %). For S% > 19.5 the basal area increment decreases non-lin-ear with increasing S %. The model contains a correction factor for yor, although this was not signifi-cant, as the year of recording (yor), turned out to be not significant. The effect of thinning on the di-ameter after thinning was modelled with the La Bastide-Faber model.The models were used to construct a yield table with five site classes and one thinning intensity.
    Groei en productie van gewone esdoorn in Nederland
    Jansen, J.J. ; Oosterbaan, A. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-12) - 41
    In the Netherlands growth and yield research on sycamore was done from 1976 to 2001. This includes studies by the Dorschkamp/IBN research institute and by Wageningen University. To-gether with the permanent sample plots from the timber prognosis system HOSP, this comprises a dataset of 32 plots with 113 recordings. For the development of top height htop with age t Cieszewski’s polymorphic model with site index h50 and three additional parameters fitted best.The diameter development up to stand height of 7 m was described with a model of Jansen et al., a power function in htop and initial spacing (N0). From a stand height of 7 m upwards, the basal area in-crement (iG) was described by Jansen’s et al. model based on a power function with htop, t, year of re-cording (yor), and the stand density of Hart (S %). For S% > 16.3 the basal area increment decreases non-linearly with increasing %. The model contains a correction factor for yor, although this was not significant, as the year of recording (yor), turned out to be not significant. The effect of thinning on the diameter after thinning was modelled with the La Bastide-Faber model.The models were used to construct a yield table with five site classes and one thinning intensity.
    Groei en productie van es in Nederland
    Jansen, J.J. ; Goudzwaard, L. ; Oosterbaan, A. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-11) - 43
    In the Netherlands growth and yield research on ash was done from 1949 to 1988. This in-cludes studies by the Dorschkamp/IBN research institute and by Wageningen University. Together with the permanent sample plots from the timber prognosis system HOSP, all this comprises a da-taset of 41 plots with 150 recordings. For the development of top height htop with age t, Cieszewski’s polymorphic model with site index h50 and three additional parameters fitted best.The diameter development up to stand height of 7 m was described with a linear function in htop and tree distance. From a stand height of 7 m and up, the basal area increment (iG) was described by Jan-sen’s et al. model based on a power function with h50, htop, t, year of recording (yor), and the stand density of Hart (S %). For S% > 16.7 the basal area increment strongly decreases non-linearly with in-creasing %. The model contains a correction factor for yor, but this was not significant, nor was htop. The effect of thinning on the diameter after thinning was modelled with a modified La Bastide-Faber model. The models were used to construct yield tables for with five site classes and one thinning in-tensity.
    Groei en productie van Amerikaanse eik in Nederland
    Jansen, J.J. ; Oosterbaan, A. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-9) - 41
    In the Netherlands growth and yield research on red oak was done from 1949 to 1988. This includes studies by Becking and by the Dorschkamp/IBN research institute. Together with the perma-nent sample plots from the timber prognosis system HOSP, all this comprises a dataset of 58 plots with 306 recordings. For the development of top height htop with age t, Jansen & Hildebrand’s poly-morphic model with site index h70 and three additional parameters fitted best.The diameter development up to stand height of 7 m was described with a linear function in htop and initial density (N0). From a stand height of 7 m and up, the basal area increment (iG) was described by Jansen’s et al. model based on a power function with htop, t, year of recording (yor), and the stand density index of Hart (S %). For S% > 19.1 the basal area increment drops strongly non-linear with in-creasing S%. The model contains a correction factor for yor, which was not significant. The effect of thinning on the diameter after thinning, was modelled with a modified La Bastide-Faber model. The model was used to construct yield tables for with five site classes and one thinning intensity
    Groei en productie van populier in Nederland
    Jansen, J.J. ; Mohren, G.M.J. ; Schmidt, P. ; Goudzwaard, L. ; Oosterbaan, A. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-8) - 127
    Between 1947 and 2000, growth and yield of Poplar was studied in the Netherlands. To the permanent plots measured by Becking and De Dorschkamp/IBN, the permanent sample plots from HOSP were added, resulting in 235 plots and 1808 recordings.The development of the mean height hm with age t was found to be best described by a Chapman-Richards-model, with adjustment factors for dense stand and for different parameters for forest stands, line plantings, and for aspen, using site index h25. The diameter development up to a height of 7 m was best described with a Gompertz-model in t, hm and the initial spacing (SP0).The basal area increment IG was best explained by a power function in which hm, age, h25 and the Becking-Hart spacing index S% are included. For S% > 29.2 the basal area increment dropped with a non-linear function in S%. For dense spacing and for line plantings, other models fitted best.Combining all models, a stand projection model was constructed, which described the plot develop-ment as measured reasonably well.Yield tables were made for forests with different spacing, for forests with a wide stand with and with-out systematically thinning, for forest with very dense spacing including mortality, for line plantings without thinning, and for aspen with heavy thinning from below
    Groei en productie van Oostenrijkse den in Nederland
    Jansen, J.J. ; Oosterbaan, A. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-7) - 96
    In the Netherlands, growth and yield research on Austrian pine was done from 1925 to 1990. This include studies by the Dorschkamp/IBN research institute. Together with the permanent sample plots from the timber prognosis system HOSP, all this comprises a dataset of 117 plots with 486 recordings. For the development of top height htop over age (t), Jansen & Hildebrand’s model with asymptote and 3 additional parameters fitted best. As site index, top height at 50 year (h50) was chosen. The diameter development up to stand height of 7 m was best described with a power func-tion based on htop, the density after refinements (NR), and h50. From a stand height of 7 m and up, the basal area increment (iG) was best described by a power function based on htop, t, and the stand den-sity index of Hart (S%). For S % > 28.7 the basal area increment drops 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 seven site classes and six thinning intensities.
    Groei en productie van Corsicaanse den in Nederland
    Jansen, J.J. ; Oosterbaan, A. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-6) - 109
    In the Netherlands, growth and yield research on Corsican pine was done from 1925 to 1990. 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 193 plots with 869 recordings. For the development of top height htop over age (t), Jansen & Hilde-brand’s model with asymptote and 3 additional parameters fitted best. As site index, top height at 50 year (h50) was chosen. The diameter development up to stand height of 7 m was best described with a Gompertz function based on htop, the density after refinements (NR), and h50. From a stand height of 7 m and up, the basal area increment (iG) was best described by a power function based on htop, t, and the stand density index of Hart (S %). For S % > 22.4 the basal area increment drops with increas-ing S %. The year of recording in relation with Brunchorstia dieback was also included in the model. 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 meas-ured stand development reasonably well. The model was used to construct yield tables with seven site classes and six thinning intensities.
    Groei en productie van beuk in Nederland
    Jansen, J.J. ; Mohren, G.M.J. ; Oosterbaan, A. ; Goudzwaard, L. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-5) - 96
    In the Netherlands growth and yield research on common beech was done from 1960 to 1992 at very small scale. This includes studies by Becking and by the Dorschkamp/IBN research insti-tute. Together with the permanent sample plots from the timber prognosis system HOSP, all this comprises a dataset of 47 plots with 169 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 diame-ter 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 a model from Jansen et al., based on a power function with htop, t, year of recording (yor), and the stand density of Hart (S %). For S % > 17.6 the basal area increment drops strongly with increasing S %. The model contains a correction factor for yor, which unfortunately could not be esti-mated from the plot data. 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 con-structed, which describes the measured stand development moderately well. The model was used to construct yield tables for with five site classes and six thinning intensities
    Groei en productie van zomereik in Nederland
    Jansen, J.J. ; Oosterbaan, A. ; Mohren, G.M.J. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018-4) - 87
    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.
    Groei en productie van grove den in Nederland
    Jansen, J.J. ; Mohren, G.M.J. ; Oosterbaan, A. ; Goudzwaard, L. ; Ouden, J. den - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie rapport 2018 - 3) - 87
    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.
    Groei en productie van fijnspar in Nederland
    Jansen, J.J. ; Mohren. G.M.J., Frits ; Oosterbaan, A. ; Ouden, J. van - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie Rapport 2018–2) - 88
    From 1951 to 1989 growth and yield research was done on Norway spruce in the Nether-lands. 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 116 plots with 388 recordings. For the development of top height htop with age t Cieszewski’s model with site index h50 and 3 additional parameters fitted best. The diameter development up to stand height of 7 m was best described with a Gompertz function based on htop and initial density N0. The basal area increment iG was best described by a power function based on htop, age and S%. For S% > 14.7 the basal area increment drops non-linear with S%. Year of recording and site index were not significant. 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 de-scribes the measured stand development reasonably well. The model was used to construct yield tables with five site classes and five thinning intensities.
    Groei en productie van Japanse lariks in Nederland
    Jansen, J.J. ; Oosterbaan, A. ; Mohren, G.M.J. ; Ouden, J. van - \ 2018
    Wageningen : Wageningen University & Research (FEM Groei en Productie Rapport 2018–1) - 120
    From 1934 to 1996 growth and yield research was done on Japanese larch in the Nether-lands. 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 151 plots with 835 recordings. For the development of top height htop with age t Cieszewski’s model with site index h50 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 S%. For S% > 20.6 the basal area increment drops slightly with increasing S%. The model contains a correction factor for yor; for the period since 1981, this factor is 18 % above the level of the period 1934 till 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 reasona-bly well. For several models, the parameters differ for the forest region North and South Nether-lands. The model was used to construct yield tables for both regions with five site classes and five thinning intensities.
    Meer producten uit het bos : mogelijkheden voor andere producten dan hout
    Oosterbaan, Anne ; Wiersum, Freerk ; Laar, Jim van - \ 2017
    Wageningen : Wageningen University & Research - ISBN 9789463431699 - 67
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