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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    EFO-LCI : A New Life Cycle Inventory Database of Forestry Operations in Europe
    Cardellini, Giuseppe ; Valada, Tatiana ; Cornillier, Claire ; Vial, Estelle ; Dragoi, Marian ; Goudiaby, Venceslas ; Mues, Volker ; Lasserre, Bruno ; Gruchala, Arkadiusz ; Rørstad, Per Kristian ; Neumann, Mathias ; Svoboda, Miroslav ; Sirgmets, Risto ; Näsärö, Olli Pekka ; Mohren, Frits ; Achten, Wouter M.J. ; Vranken, Liesbet ; Muys, Bart - \ 2018
    Environmental Management 61 (2018)6. - ISSN 0364-152X - p. 1031 - 1047.
    Forest management - Forest Unit - Life cycle assessment - Silviculture - Wood
    Life cycle assessment (LCA) has become a common methodology to analyze environmental impacts of forestry systems. Although LCA has been widely applied to forestry since the 90s, the LCAs are still often based on generic Life Cycle Inventory (LCI). With the purpose of improving LCA practices in the forestry sector, we developed a European Life Cycle Inventory of Forestry Operations (EFO-LCI) and analyzed the available information to check if within the European forestry sector national differences really exist. We classified the European forests on the basis of “Forest Units” (combinations of tree species and silvicultural practices). For each Forest Unit, we constructed the LCI of their forest management practices on the basis of a questionnaire filled out by national silvicultural experts. We analyzed the data reported to evaluate how they vary over Europe and how they affect LCA results and made freely available the inventory data collected for future use. The study shows important variability in rotation length, type of regeneration, amount and assortments of wood products harvested, and machinery used due to the differences in management practices. The existing variability on these activities sensibly affect LCA results of forestry practices and raw wood production. Although it is practically unfeasible to collect site-specific data for all the LCAs involving forest-based products, the use of less generic LCI data of forestry practice is desirable to improve the reliability of the studies. With the release of EFO-LCI we made a step toward the construction of regionalized LCI for the European forestry sector.
    Highlights from the 2016 joint call for transnational projects
    Keulen, H. van; Bunthof, C.J. ; Ní Choncubhair, Órlaith ; Kelly, Raymond - \ 2017
    Zwolle : FACCE ERA-GAS - 16 p.
    ERA-GAS - FACCE - Greenhouse gases - Agriculture - Silviculture - ERA-NET Cofund - Monitoring - Mitigation - Food security - Climate change
    FACCE ERA-GAS 1st Research Programme Meeting, 10-11 October 2017, Wageningen
    Keulen, H. van; Bunthof, C.J. ; O'Mara, Frank ; Ní Choncubhair, Órlaith - \ 2017
    FACCE - ERA-GAS - Greenhouse gas - GHG - agriculture - Silviculture - Forestry
    The first FACCE ERA-GAS Research Programme Meetingmeeting was organised by Wageningen University & Research with support from the Irish Agriculture and Food Development Authority (Teagasc). The purpose of the meeting was to officially launch the ten new research projects funded by the 2016 FACCE ERA-GAS joint call. The aim of these projects is to develop solutions to reduce greenhouse gas (GHG) emissions from agriculture and forestry and improve national GHG inventories.
    Predicting the spatial and temporal dynamics of species interactions in Fagus sylvatica and Pinus sylvestris forests across Europe
    Forrester, David Ian ; Ammer, Ch ; Annighöfer, Peter J. ; Avdagic, A. ; Barbeito, I. ; Bielak, Kamil ; Brazaitis, Gediminas ; Coll, L. ; Río, M. del; Drössler, L. ; Heym, Michael ; Hurt, Václav ; Löf, Magnus ; Matović, B. ; Meloni, F. ; Ouden, J. den; Pach, Maciej ; Pereira, M.G. ; Ponette, Quentin ; Pretzsch, H. ; Skrzyszewski, Jerzy ; Stojanović, D. ; Svoboda, M. ; Ruiz-Peinado, R. ; Vacchiano, G. ; Verheyen, K. ; Zlatanov, T. ; Bravo-Oviedo, A. - \ 2017
    Forest Ecology and Management 405 (2017). - ISSN 0378-1127 - p. 112 - 133.
    Biodiversity - Climate - Competition - Complementarity - Forest growth model - Mixed-species - Silviculture
    The productivity and functioning of mixed-species forests often differs from that of monocultures. However, the magnitude and direction of these differences are difficult to predict because species interactions can be modified by many potentially interacting climatic and edaphic conditions, stand structure and previous management. Process-based forest growth models could potentially be used to disentangle the effects of these factors and thereby improve our understanding of mixed forest functioning while facilitating their design and silvicultural management. However, to date, the predicted mixing effects of forest growth models have not been compared with measured mixing effects. In this study, 26 sites across Europe, each containing a mixture and monocultures of Fagus sylvatica and Pinus sylvestris, were used to calculate mixing effects on growth and yield and compare them with the mixing effects predicted by the forest growth model 3-PGmix. The climate and edaphic conditions, stand structures and ages varied greatly between sites. The model performed well when predicting the stem mass and total mass (and mixing effects on these components), with model efficiency that was usually >0.7. The model efficiency was lower for growth or smaller components such as foliage mass and root mass. The model was also used to predict how mixing effects would change along gradients in precipitation, temperature, potential available soil water, age, thinning intensity and soil fertility. The predicted patterns were consistent with measurements of mixing effects from published studies. The 3-PG model is a widely used management tool for monospecific stands and this study shows that 3-PGmix can be used to examine the dynamics of mixed-species stands and determine how they may need to be managed.
    Comparative effectiveness of silvicultural interventions for increasing timber production and sustaining conservation values in natural tropical production forests. A systematic review protocol
    Petrokofsky, Gillian ; Sist, Plinio ; Blanc, Lilian ; Doucet, Jean Louis ; Finegan, Bryan ; Gourlet-Fleury, Sylvie ; Healey, John R. ; Livoreil, Barbara ; Nasi, Robert ; Peña-Claros, Marielos ; Putz, Francis E. ; Zhou, Wen - \ 2015
    Environmental Evidence 4 (2015). - ISSN 2047-2382 - 7 p.
    Biodiversity - Conservation - Silviculture - Sustainable forest management - Tropical forests

    Background: Currently, about 400 million hectares of tropical moist forests worldwide are designated production forests, about a quarter of which are managed by rural communities and indigenous peoples. There has been a gradual impoverishment of forest resources inside selectively logged forests in which the volume of timber extracted over the first cutting cycle was mostly from large, old trees that matured over a century or more and grew in the absence of strong anthropological pressures. In forests now being logged for a second and third time, that volume has not been reconstituted due in part to the lack of implementation of post-logging silvicultural treatments. This depletion of timber stocks renders the degraded forests prone to conversion to other land uses. Although it is essential to preserve undisturbed primary forests through the creation of protected areas, these areas alone will not be able to ensure the conservation of all species on a pan-tropical scale, for social, economic and political reasons. The conservation of tropical forests of tomorrow will mostly take place within human-modified (logged, domesticated) forests. In this context, silvicultural interventions are considered by many tropical foresters and forest ecologists as tools capable of effectively conserving tropical forest biodiversity and ecosystem services while stimulating forest production. This systematic review aims to assess past and current evidence of the impact of silviculture on tropical forests and to identify silvicultural practices appropriate for the current conditions in the forests and forestry sectors of the Congo Basin, Amazonia and Southeast Asia. Methods: This systematic review will undertake an extensive search of literature to assess the relative effectiveness of different silvicultural interventions on timber production and the conservation value of forests, and to determine whether there is a relationship between sustainability of timber harvesting and the maintenance/conservation of other ecosystem services and biodiversity in production forests. Data will be extracted for meta-analysis of at least sub-sets of the review questions. Findings are expected to help inform policy and develop evidence-based practice guidelines on silvicultural practices in tropical forests.

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