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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    Records 1 - 20 / 54

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    Soil carbon storage is promoted more by Jícaro than by Guácimo trees in silvopastoral systems in Nicaragua
    Hoosbeek, M.R. ; Remme, R.P. ; Velthorst, E.J. ; Nieuwenhuyse, A. - \ 2013
    In: Proceedings of the FUNCiTREE final conference, 23-25 May 2013, Trondheim, Norway. - - p. 12 - 13.
    Abstract The role of solitary trees in providing ecosystems services to silvopastoral systems gained attention in recent years. Next to providing fodder (fruits), fuel and timber wood, trees are also likely to affect soil characteristics and the cycling of C and nutrients in their vicinity. These tree – soil effects are hypothesized to affect soil respiration (CO2 efflux) and C stabilisation. The soils in the Rivas area were formed in marine clay and sand deposits of young Tertiary age. For this study, 6 Guazuma ulmifolia (Guácimo) and 6 Crescentia alata (Jicaro) trees were selected in relatively flat parts of the landscape. Soils were classified as Vertic Haplustolls (Mollisols on gently sloping alluvial fans) and Haplusters (Vertisols in the central parts of depressions). Soil samples and soil respiration measurements were collected from three locations near each tree: 1 pasture – no tree effect (10 m up-wind from the tree); 2 tree canopies – above and belowground tree litter input; 3 pasture and aboveground leaf litter input (down-wind zone where most leaf litter is deposited). Soil samples were taken to represent the 0 – 20 and 20 – 50 cm depth increments. Soil bulk density was affected by soil type (P=0.011), tree species (P
    Eelgrass (Zostera marina L.) in the western Wadden Sea: monitoring, habitat suitability model, transplantations and communication
    Bos, A.R. ; Dankers, N.M.J.A. ; Groeneweg, A.H. ; Hermus, D.C.R. ; Jager, Z. ; Jong, D.J. de; Smit, T. ; Vlas, J. de; Wieringen, M. van; Katwijk, M.M. van - \ 2005
    In: Proceedings Dunes and Estuaries 2005; VIZ Special Publication 19. - Oostende (Belgium) : VLIZ - p. 95 - 109.
    An interdisciplinary approach to regional land use analysis using GIS, with applications to the Atlantic Zone of Costa Rica
    Jansen, H.P.G. ; Bouman, B.A.M. ; Schipper, R.A. ; Hengsdijk, H. ; Nieuwenhuyse, A. - \ 2005
    Agricultural Economics 32 (2005)1. - ISSN 0169-5150 - p. 87 - 104.
    quantification - systems - tropics - models - impact - input
    Policy makers and other stakeholders concerned with regional rural development increasingly face the need for instruments that can improve transparency in the policy debate and that enhance understanding of opportunities for and limitations to development. To this end, a methodology called SOLUS (Sustainable Options for Land Use) was developed by an interdisciplinary team of scientists over a 10-year period in the Atlantic Zone of Costa Rica. The main tools of SOLUS include a linear programming (LP) model, two expert systems that define technical coefficients for a large number of production activities, and a geographic information system (GIS). A five-step procedure was developed for GIS to spatially reference biophysical and economic parameters, to create input for the expert systems and the LP model, to store and spatially reference model output data, and to create maps of both model input and output data. SOLUS can be used to evaluate the potential effects of alternative policies and incentive structures on the performance of the agricultural sector. A number of practical applications demonstrate SOLUS's capability to quantify trade-offs between economic objectives (income, employment) and environmental sustainability (soil nutrient balances, pesticide use, greenhouse gas emissions). GIS-created maps visualize the spatial aspects of such trade-offs and indicate hotspots where local goals may conflict with regional goals.
    Integrated bioeconomic land-use models: an analysis of policy issues in the Atlantic Zone of Costa Rica
    Schipper, R.A. ; Jansen, H.G.P. ; Bouman, B.A.M. ; Hengsdijk, H. ; Nieuwenhuyse, A. ; Saenz, F. - \ 2001
    In: Tradesoffs or Synergies? Agricultural intensification, economic development and the environment / Lee, D.R., Barrett, C.B., New York, USA : CAB International - ISBN 9780851994352 - p. 267 - 284.
    Using a bioeconomic modelling approach the chapter analyses land-use alternatives in northern Costa Rica, giving explicit attention to the incorporation of local labour markets, crop and animal production and environmental indicators. Their model is used to analyse the effects of technology and policy alternatives, including a pesticide tax and forestry subsidies. Labour and product market conditions are found to substantially influence the outcomes.
    Alternative approaches to the economics on soil nutrient depletion in Costa Rica: exploratory, predictive and normative bio-economic models
    Jansen, H.G.P. ; Schipper, R.A. ; Roebeling, P. ; Bulte, E.H. ; Hengsdijk, H. ; Bouman, B.A.M. ; Nieuwenhuyse, A. - \ 2001
    In: Economic Policy and Sustainable land use / Nico Heerink, Herman van Keulen en Marijke Kuiper Heidelberg : Physica-Verlag - p. 211 - 237.
    On Tools for Land Use Analysis : role and complementarity of methodologies for the evaluation of land use on different scales
    Jansen, H.G.P. ; Bouman, B.A.M. ; Bouma, J. ; Schipper, R.A. ; Hengsdijk, H. ; Nieuwenhuyse, A. - \ 2000
    Unknown Publisher - 13 p.
    Linking information technology and farmer knowledge in a decision support system for improved banana cultivation
    Stoorvogel, J.J. ; Orlich, R.A. ; Vargas, R. ; Bouma, J. - \ 2000
    In: Tools for land use analysis on different scales / Bouman, B.A.M., Jansen, H.G.P., Schipper, R.A., Hengsdijk, H., Nieuwenhuyse, A., Dordrecht : Kluwer Academic Publishers - ISBN 9780792364795 - p. 199 - 212.
    Integrated biophysical and socio-economic analysis for regional land use
    Schipper, R.A. ; Bouman, B.A.M. ; Jansen, H.G.P. ; Hengsdijk, H. ; Nieuwenhuyse, A. - \ 2000
    In: Tools for Land Use Analysis on different Scales / Bouman, B.A.M., Dordrecht : Kluwer Academic Publishers - ISBN 9780792364795 - p. 115 - 144.
    Spatial equilibrium modeling for evaluating inter-regional trade flows, land use and agricultural policy analysis
    Roebeling, P.C. ; Jansen, H.G.P. ; Tilburg, A. van; Schipper, R.A. - \ 2000
    In: Tools for Land Use Analysis on Different Scales : With Case Studies for Costa Rica / Bouman, B.A.M., Jansen, H.G.P., Schipper, R.A., Hengsdijk, H., Nieuwenhuyse, A., Dordrecht : Kluwer Academic Publishers - ISBN 9780792364795 - p. 65 - 96.
    Mineralogy of a soil chronosequence on andesitic lava in humid tropical Costa Rica
    Nieuwenhuyse, A. ; Verburg, P.S.J. ; Jongmans, A.G. - \ 2000
    Geoderma 98 (2000). - ISSN 0016-7061 - p. 61 - 82.
    kleimineralen - vulkanische gronden - costa rica - clay minerals - volcanic soils - costa rica
    Can forestry be a competitive land use option? Model simulations from humid tropical Costa Rica
    Nieuwenhuyse, A. ; Hengsdijk, H. ; Bouman, B.A.M. ; Schipper, R.A. ; Jansen, H.G.P. - \ 2000
    Forest Ecology and Management 137 (2000). - ISSN 0378-1127 - p. 1 - 3.
    The physical and socio-economic setting : the northern Atlantic Zone of Costa Rica
    Nieuwenhuyse, A. ; Bouman, B.A.M. ; Jansen, H.G.P. ; Schipper, R.A. ; Alfaro, R. - \ 2000
    In: Tools for Land Use Analysis on Different Scales : With Case Studies for Costa Rica / Bouman, B.A.M., Jansen, H.G.P., Schipper, R.A., Hengsdijk, H., Nieuwenhuyse, A., - p. 9 - 34.
    Introduction
    Kuyvenhoven, A. - \ 2000
    In: Tools for Land Use Analysis on Different Scales : With Case Studies for Costa Rica / Bouman, B.A.M., Jansen, H.G.P., Schipper, R.A., Hengsdijk, H., Nieuwenhuyse, A., - p. 1 - 7.
    Induration of C horizons by allophane and imogolite in Costa Rican volcanic soils
    Jongmans, A.G. ; Denaix, L. ; Oort, F. van; Nieuwenhuyse, A. - \ 2000
    Soil Science Society of America Journal 64 (2000). - ISSN 0361-5995 - p. 254 - 262.
    vulkanische gronden - bodemmicromorfologie - costa rica - volcanic soils - soil micromorphology - costa rica
    Exploring future land use options : combining biophysical opportunities and societal objectives
    Bessembinder, J. ; Ittersum, M.K. van; Schipper, R.A. ; Bouman, B.A.M. ; Hengsdijk, H. ; Nieuwenhuyse, A. - \ 2000
    In: Tools for Land Use Analysis on Different Scales / Bouman, B.A.M., Dordrecht : Kluwer Academic Publishers - ISBN 9780792364795 - p. 145 - 169.
    Technical Coefficient Generators for quantifying land use systems
    Hengsdijk, H. ; Bouman, B.A.M. ; Nieuwenhuyse, A. ; Schipper, R.A. ; Bessembinder, J. - \ 2000
    In: Tools for Land Use Analysis on Different Scales / Bouman, B.A.M., Dordrecht : Kluwer Academic Publishers - ISBN 9780792364795 - p. 97 - 114.
    The economics of soil nutrient stocks and cattle ranching in the tropics: optimal pasture degradation in humid Costa Rica
    Bulte, E.H. ; Bouman, B.A.M. ; Plant, R.A.J. ; Nieuwenhuyse, A. ; Jansen, H.G.P. - \ 2000
    European Review of Agricultural Economics 27 (2000). - ISSN 0165-1587 - p. 207 - 226.
    We present a model that can be used to analyse economically optimal nutrient (nitrogen) stocks in agricultural lands. The model is applied to study cattle ranching in humid Costa Rica. The numerical results indicate that, for current meat prices and discount rate, it is privately optimal to 'mine' soil nitrogen. In the long run, efficiency is consistent with degraded and abandoned pastures, as observed in the study region. Sustainable pasture management is economically efficient only for a discount rate close to zero or for meat prices at about twice the highest recorded value in 1985-1997. The results highlight the potential conflict between sustainability and economic efficiency. Caveats and externalities that are not included in our model are discussed.
    Tools for Land Use Analysis on Different Scales : With Case Studies for Costa Rica
    Bouman, B.A.M. ; Jansen, H.G.P. ; Schipper, R.A. ; Hengsdijk, H. ; Nieuwenhuyse, A. - \ 2000
    Dordrecht [etc.] : Kluwer Academic Publishers - ISBN 9780792364795 - 274
    landgebruik - analyse - modellen - evaluatie - methodologie - landbouw - beleid - sociale economie - ruimtelijke evenwichtsanalyse - duurzaamheid (sustainability) - costa rica - land use - analysis - models - evaluation - methodology - agriculture - policy - socioeconomics - spatial equilibrium analysis - sustainability - costa rica
    Exploring options for sustainable beef cattle ranching in the humid tropics: a case study for the Atlantic Zone of Costa Rica
    Bouman, B.A.M. ; Nieuwenhuyse, A. - \ 1999
    Agricultural Systems 59 (1999). - ISSN 0308-521X - p. 145 - 161.
    Quantification of land use systems using technical coefficient generators: a case study for the Northern Atlantic zone of Costa Rica
    Hengsdijk, H. ; Bouman, B.A.M. ; Nieuwenhuyse, A. ; Jansen, H.G.P. - \ 1999
    Agricultural Systems 61 (1999). - ISSN 0308-521X - p. 109 - 121.
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