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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    Evaluation Framework for Action Innovation projects : A series of Case Studies from Germany, The Netherlands, Hungary and Spain
    Boulding, Patrick ; Patrik, Eisenhauer ; Brüggemann, Nora ; Timmermans, A.J.M. ; Cseh, Balázs ; Riez, Raquel de - \ 2019
    REFRESH - 71 p.
    Source partitioning of H 2 O and CO 2 fluxes based on high-frequency eddy covariance data : A comparison between study sites
    Klosterhalfen, Anne ; Graf, Alexander ; Brüggemann, Nicolas ; Drüe, Clemens ; Esser, Odilia ; González-Dugo, María P. ; Heinemann, Günther ; Jacobs, Cor M.J. ; Mauder, Matthias ; Moene, Arnold F. ; Ney, Patrizia ; Pütz, Thomas ; Rebmann, Corinna ; Rodríguez, Mario Ramos ; Scanlon, Todd M. ; Schmidt, Marius ; Steinbrecher, Rainer ; Thomas, Christoph K. ; Valler, Veronika ; Zeeman, Matthias J. ; Vereecken, Harry - \ 2019
    Biogeosciences 16 (2019)6. - ISSN 1726-4170 - p. 1111 - 1132.

    For an assessment of the roles of soil and vegetation in the climate system, a further understanding of the flux components of H 2 O and CO 2 (e.g., transpiration, soil respiration) and their interaction with physical conditions and physiological functioning of plants and ecosystems is necessary. To obtain magnitudes of these flux components, we applied source partitioning approaches after Scanlon and Kustas (2010; SK10) and after Thomas et al. (2008; TH08) to high-frequency eddy covariance measurements of 12 study sites covering different ecosystems (croplands, grasslands, and forests) in different climatic regions. Both partitioning methods are based on higher-order statistics of the H 2 O and CO 2 fluctuations, but proceed differently to estimate transpiration, evaporation, net primary production, and soil respiration. We compared and evaluated the partitioning results obtained with SK10 and TH08, including slight modifications of both approaches. Further, we analyzed the interrelations among the performance of the partitioning methods, turbulence characteristics, and site characteristics (such as plant cover type, canopy height, canopy density, and measurement height). We were able to identify characteristics of a data set that are prerequisites for adequate performance of the partitioning methods. SK10 had the tendency to overestimate and TH08 to underestimate soil flux components. For both methods, the partitioning of CO 2 fluxes was less robust than for H 2 O fluxes. Results derived with SK10 showed relatively large dependencies on estimated water use efficiency (WUE) at the leaf level, which is a required input. Measurements of outgoing longwave radiation used for the estimation of foliage temperature (used in WUE) could slightly increase the quality of the partitioning results. A modification of the TH08 approach, by applying a cluster analysis for the conditional sampling of respiration-evaporation events, performed satisfactorily, but did not result in significant advantages compared to the original method versions developed by Thomas et al. (2008). The performance of each partitioning approach was dependent on meteorological conditions, plant development, canopy height, canopy density, and measurement height. Foremost, the performance of SK10 correlated page1112 negatively with the ratio between measurement height and canopy height. The performance of TH08 was more dependent on canopy height and leaf area index. In general, all site characteristics that increase dissimilarities between scalars appeared to enhance partitioning performance for SK10 and TH08.

    Frameworks for Action : Selection Process
    Bygrave, Kate ; Rogers, David ; Eisenhauer, Patrik ; Brüggemann, Nora ; Timmermans, A.J.M. ; Cseh, Balázs ; Lopez-i-Gelats, Feliu ; Diaz-Ruiz, Raquel - \ 2017
    REFRESH - 94 p.
    Modeling soil processes : Review, key challenges, and new perspectives
    Vereecken, H. ; Schnepf, A. ; Hopmans, J.W. ; Javaux, M. ; Or, D. ; Roose, T. ; Vanderborght, J. ; Young, M.H. ; Amelung, W. ; Aitkenhead, M. ; Allison, S.D. ; Assouline, S. ; Baveye, P. ; Berli, M. ; Brüggemann, N. ; Finke, P. ; Flury, M. ; Gaiser, T. ; Govers, G. ; Ghezzehei, T. ; Hallett, P. ; Hendricks Franssen, H.J. ; Heppell, J. ; Horn, R. ; Huisman, J.A. ; Jacques, D. ; Jonard, F. ; Kollet, S. ; Lafolie, F. ; Lamorski, K. ; Leitner, D. ; Mcbratney, A. ; Minasny, B. ; Montzka, C. ; Nowak, W. ; Pachepsky, Y. ; Padarian, J. ; Romano, N. ; Roth, K. ; Rothfuss, Y. ; Rowe, E.C. ; Schwen, A. ; Šimůnek, J. ; Tiktak, A. ; Dam, Jos van; Zee, S.E.A.T.M. van der; Vogel, H.J. ; Vrugt, J.A. ; Wöhling, T. ; Wöhling, T. ; Young, I.M. - \ 2016
    Vadose Zone Journal 15 (2016)5. - ISSN 1539-1663 - 57 p.

    The remarkable complexity of soil and its importance to a wide range of ecosystem services presents major challenges to the modeling of soil processes. Although major progress in soil models has occurred in the last decades, models of soil processes remain disjointed between disciplines or ecosystem services, with considerable uncertainty remaining in the quality of predictions and several challenges that remain yet to be addressed. First, there is a need to improve exchange of knowledge and experience among the different disciplines in soil science and to reach out to other Earth science communities. Second, the community needs to develop a new generation of soil models based on a systemic approach comprising relevant physical, chemical, and biological processes to address critical knowledge gaps in our understanding of soil processes and their interactions. Overcoming these challenges will facilitate exchanges between soil modeling and climate, plant, and social science modeling communities. It will allow us to contribute to preserve and improve our assessment of ecosystem services and advance our understanding of climate-change feedback mechanisms, among others, thereby facilitating and strengthening communication among scientific disciplines and society. We review the role of modeling soil processes in quantifying key soil processes that shape ecosystem services, with a focus on provisioning and regulating services. We then identify key challenges in modeling soil processes, including the systematic incorporation of heterogeneity and uncertainty, the integration of data and models, and strategies for effective integration of knowledge on physical, chemical, and biological soil processes. We discuss how the soil modeling community could best interface with modern modeling activities in other disciplines, such as climate, ecology, and plant research, and how to weave novel observation and measurement techniques into soil models. We propose the establishment of an international soil modeling consortium to coherently advance soil modeling activities and foster communication with other Earth science disciplines. Such a consortium should promote soil modeling platforms and data repository for model development, calibration and intercomparison essential for addressing contemporary challenges.

    Sustainable and resource efficient intensivation of crop production - Perspectives of agro-ecosystem research Policy paper of the DFG Senate Commission on Agroecosystem Research
    Wolters, V. ; Isselstein, J. ; Stützel, H. ; Ordon, F. ; Haaren, C. von; Schlecht, E. ; Wesseler, J.H.H. ; Birner, R. ; Lützow, M. von; Brüggemann, N. ; Diekkrüger, B. ; Fangmeier, A. ; Flessa, H. ; Kage, H. ; Kaupenhohann, M. ; Kögel-Knabner, I. ; Mosandl, R. ; Seppelt, R. - \ 2014
    Journal of Cultivated Plants 66 (2014)7. - ISSN 1867-0911 - p. 225 - 236.
    With its policy paper the Senate Commission on Agro-ecosystemResearch of the Deutsche Forschungsgemeinschaft(DFG) summarizes potential benefits of basic researchfor the sustainable intensification of crop production. Agro-ecosystems critically contribute to fulfilling the need forincreasing food and fiber production, diminishing resourcedepletion as well as counteracting biodiversity loss and climate change. Yield demands that are needed to ensure the food supply predicted for the year 2050 can only be achieved by scientific progress that allows the intensive yet environmentally friendly production of plant biomass (Figure ), (FAO, 2011; Dobermann und Nelson,2013; Rayet al., 2013). Sustainable intensification requires a scientific realignment that allows for broadening the scope of agricultural research. The productivity of farming systems should be evaluated with regard to their efficiency (input-output relation). In addition, the spatial and temporal variability of these systems must be considered by addressing local conditions, the landscape context and climate change. With respect to ecosystem services, new production strategies must be developed that take all aspects of landscape and regional complexity as well as socio-economic conditions and agricultural policy into account. Against this background, the Senate Commission onAgro-ecosystem Research proposes three priority areas of interdisciplinary research on resource efficient intensification of crop production: (1) Exploiting the biological potential of the individualcrop plants for an environmentally friendly intensificationin an ecosystem approach (2) Exploring sustainable intensification of crop production within a landscape context (3) Taking full account of the economic, social and politicaldimensions of sustainable intensification of crop production
    Deltascenario’s voor 2050 en 2100 : nadere uitwerking 2012-2013
    Bruggemann, W. ; Dammers, E. ; Born, G.J. van den; Rijkens, B. ; Bemmel, B. van; Bouwman, A. ; Nabielek, K. ; Beersma, J. ; Hurk, B. van den; Polman, N.B.P. ; Linderhof, V.G.M. ; Folmer, C. ; Huizinga, F. ; Hommes, S. ; Linde, A. te; Didde, R. ; Roukema, M. - \ 2013
    Delft : Deltares - 65
    klimaatverandering - economische groei - economische ontwikkeling - scenario-analyse - overstromingen - risicoanalyse - climatic change - economic growth - economic development - scenario analysis - floods - risk analysis
    Planbureau voor de Leefomgeving (PBL), Centraal Planbureau (CPB), KNMI en Wageningen UR, LEI publiceren onder leiding van Deltares de ‘Deltascenario’s voor 2050 en 2100 – nadere uitwerking 2012-2013’. Deze scenario’s bouwen voort op de in 2011 gepubliceerde Deltascenario’s. Ze zijn gebaseerd op meer óf minder economische groei in combinatie met matige óf grote klimaatverandering. De vier scenario’s hebben de namen: RUST (resultaat van matige klimaatverandering en lage groei van economie en bevolking); DRUK (matige klimaatverandering, sterke groei); WARM (snelle klimaatverandering, lage groei); STOOM (snelle klimaatverandering, sterke groei). Aan de hand van elk van de uitgewerkte scenario’s toont het consortium voor welke uitdagingen Nederland in de toekomst kan komen te staan als het gaat om zoetwatervoorziening, de ruimtelijke inrichting van stad en land en bescherming tegen overstromingen.
    Seasonal dynamics of Sargassum ilicifolium (Phaeophyta) on a shallow reef flat in the southern Red Sea (Eritrea)
    Ateweberhan, M. ; Bruggemann, J.H. ; Breeman, A.M. - \ 2005
    Marine Ecology Progress Series 292 (2005). - ISSN 0171-8630 - p. 159 - 171.
    great-barrier-reef - pteropleuron grunow phaeophyceae - muticum yendo fensholt - coral-reef - nutrient availability - macrocystis-pyrifera - population-structure - magnetic island - fringing reefs - australia
    The seasonality of Sargassum ilicifolium was studied in the southern Red Sea by monitoring thallus density, thallus size and the initiation, growth, reproduction and survivorship of primary laterals. Thallus density showed slight but significant seasonal variation; it was highest at the end of the hot season and lowest at the end of the cold season. Mean thallus and lateral lengths peaked in the second half of the cold season. Initiation of new laterals was highest in the first half of the cold season. High lateral densities suppressed new lateral initiation. In the first month after initiation, laterals grew out to the same length as those formed earlier in the year. Thus, elongation rates of young laterals were highest during the period of maximum canopy height. In older laterals, growth rates decreased with length, due to increased tissue loss. Growth rates were independent of reproductive status. Reproduction occurred in the second half of the cold season and was independent of lateral size, but laterals had to be at least 1 to 2 mo old before reproducing. Highest loss rates of laterals occurred at the end of the growth season. Survivorship was independent of lateral size or reproductive status. Loss rates were lowest in the hot season. We conclude that there is no direct trade-off between reproduction and growth/survival of the laterals, and that the dynamics of S. ilicifolium are directly related to the seasonal extremes in environmental conditions. Morphogenetic responses at the level of individual laterals also contribute to the overall phenological pattern
    Seasonal patterns of biomass, growth and reproduction in Dictyota cervicornis and Stoechospermum polypodioides (Dictyotales, Phaeophyta) on a shallow reef flat in the southern Red Sea (Eritrea)
    Ateweberhan, M. ; Bruggemann, J.H. ; Breeman, A.M. - \ 2005
    Botanica Marina 48 (2005)1. - ISSN 0006-8055 - p. 8 - 17.
    size structure - coast - productivity - communities - variability - populations - inequality - dynamics - seaweeds - ecology
    Seasonal patterns in thallus length, biomass, reproduction, total biomass m-2 and size structure were monitored in populations of Dictyota cervicornis and Stoechospermum polypodioides on a shallow reef flat in the southern Red Sea. These tropical reef flats are exposed to extreme temperatures of about 34°C in summer and to temperatures of about 25°C in winter. Both species showed peaks in length, biomass and reproduction in winter; macrothalli were absent in summer. Thallus length, biomass and the proportion of reproductive thalli showed a strong negative correlation with seawater temperature. Young thalli first appeared in November, following a drop in seawater temperature from about 33 to 31°C. Macroscopic thalli had disappeared in May, when temperatures had reached the same values as those at the start of the growth season (33°C). When reef substrata collected in summer were kept at sub-ambient temperatures (29¿31°C), macroscopic thalli of D. cervicornis developed. Size structure varied over time, probably because of non-synchronous development and tissue loss among thalli. Reproduction was size-dependent. We conclude that D. cervicornis and S. polypodioides have highly seasonal patterns of growth and reproduction related to the seasonal variation in the environment, especially temperature.
    The inheritance of chilling tolerance in tomato (Lycopersicon spp).
    Venema, J.H. ; Linger, P. ; Heusden, A.W. van; Hasselt, P.R. van; Bruggemann, W. - \ 2005
    Plant Biology 7 (2005)2. - ISSN 1435-8603 - p. 118 - 130.
    ribulose-1,5-bisphosphate carboxylase oxygenase - low-temperature tolerance - low-light - chlorophyll fluorescence - xanthophyll cycle - cultivated tomato - wild tomato - photosynthesis parameters - electron-transport - cold tolerance
    During the past 25 years, chilling tolerance of the cultivated (chilling-sensitive) tomato Lycopersicon esculentum and its wild, chilling-tolerant relatives L. peruvianum and L. hirsutum (and, less intensively studied, L. chilense) has been the object of several investigations. The final aim of these studies can be seen in the increase in chilling tolerance of the cultivated genotypes. In this review, we will focus on low-temperature effects on photosynthesis and the inheritance of these traits to the offspring of various breeding attempts. While crossing L. peruvianum (¿) to L. esculentum (¿) so far has brought the most detailed insight with respect to physiological questions, for practical purposes, e.g., the readily cross ability, crossing programmes with L. hirsutum as pollen donor at present seem to be a promising way to achieve higher chilling-tolerant genotypes of the cultivated tomato. This perspective is due to the progress that has been made with respect to the genetic basis of chilling tolerance of Lycopersicon spp. over the past five years
    Factors controlling coral reef community structure in the shallow Red Sea reefs of Massawa (Eritrea)
    Ateweberhan, M. ; Bruggemann, J.H. ; Breeman, A.M. - \ 2000
    In: Abstracts of the 9th Int. Coral Reef Symposium : 9th Int. Coral Reef Symposium, 23-29 October, 2000, Bali Indonesia, 2000 [S.l.] : s.n. - p. 146 - 146.
    Early human occupation of the Red Sea coast of Eritrea during the last interglacial
    Walter, R.C. ; Buffler, R.T. ; Bruggemann, J.H. ; Guillaume, M.M.M. ; Berhe, S.M. ; Negassi, B. ; Libsekal, Y. ; Cheng, H. ; Edwards, R.L. ; Cosel, R. von; Néraudeau, D. ; Gagnon, M. - \ 2000
    Nature 405 (2000)4. - ISSN 0028-0836 - p. 65 - 69.
    The geographical origin of modern humans is the subject of ongoing scientific debate. The 'multiregional evolution' hypothesis argues that modern humans evolved semi-independently in Europe, Asia and Africa between 100,000 and 40,000 years ago, whereas the 'out of Africa' hypothesis contends that modern humans evolved in Africa between 200 and 100 kyr ago, migrating to Eurasia at some later time. Direct palaeontological, archaeological and biological evidence is necessary to resolve this debate. Here we report the discovery of early Middle Stone Age artefacts in an emerged reef terrace on the Red Sea coast of Eritrea, which we date to the last interglacial (about 125 kyr ago) using U–Th mass spectrometry techniques on fossil corals. The geological setting of these artefacts shows that early humans occupied coastal areas and exploited near-shore marine food resources in East Africa by this time. Together with similar, tentatively dated discoveries from South Africa this is the earliest well-dated evidence for human adaptation to a coastal marine environment, heralding an expansion in the range and complexity of human behaviour from one end of Africa to the other. This new, widespread adaptive strategy may, in part, signal the onset of modern human behaviour, which supports an African origin for modern humans by 125 kyr ago.
    Corals on the edge in the Red hot Sea
    Guillaume, M.M. ; Bruggemann, J.H. ; Futwi, M. ; Heruy, A. - \ 2000
    In: Abstracts of the 9th Int. Coral Reef Symposium : 9th International Coral Reef Symposium, Bali Indonesia, 2000. - [S.l.] : [s.n.], 2000 - p. 263 - 263.
    Pleistocene reefs in the southern Red Sea as foraging habitat for early humans
    Bruggemann, J.H. ; Guillaume, M.M. ; Cosel, R. van; Buffler, R.T. ; Negassi, B. ; Berhe, S.M. ; Liksekal, Y. ; Walter, R. - \ 2000
    In: Abstracts of the 9th Int. Coral Reef Symposium : 9th International Coral Reef Symposium, Bali Indonesia, 2000. - [S.l.] : [s.n.], 2000 - p. 74 - 74.
    Improvement of post-chilling photosynthesis in tomato by sexual hybridisation with a Lycopersicon peruvianum line from elevated altitude.
    Brüggemann, W. ; Linger, P. ; Wenner, A. ; Koornneef, M. - \ 1996
    Advances in Horticultural Sciences 10 (1996). - p. 215 - 218.
    Analysis of Arabidopsis mutants deficient in flavonoid biosynthesis.
    Shirley, B.W. ; Kubasek, W.L. ; Storz, G. ; Bruggemann, E. ; Koornneef, M. ; Ausubel, F.M. ; Goodman, H.M. - \ 1995
    The Plant Journal 8 (1995). - ISSN 0960-7412 - p. 659 - 671.
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