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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    Global Change Can Make Coastal Eutrophication Control in China More Difficult
    Wang, Mengru ; Kroeze, Carolien ; Strokal, Maryna ; Vliet, Michelle T.H. van; Ma, Lin - \ 2020
    Earth's Future 8 (2020)4. - ISSN 2328-4277
    Climate change - Coastal eutrophication - Nutrient export - Socio-economic change - Source attribution - Sub-basins

    Fast socio-economic development in agriculture and urbanization resulted in increasing nutrient export by rivers, causing coastal eutrophication in China. In addition, climate change may affect hydrology, and as a result, nutrient flows from land to sea. This study aims at a better understanding of how future socio-economic and climatic changes may affect coastal eutrophication in China. We modeled river export of total dissolved nitrogen (TDN) and phosphorus (TDP) in 2050 for six scenarios combining socio-economic pathways (SSPs) and Representative Concentration Pathways (RCPs). We used the newly developed MARINA 2.0 (Model to Assess River Inputs of Nutrients to seAs) model. We found that global change can make coastal eutrophication control in China more difficult. In 2050 coastal waters may be considerably more polluted or considerably cleaner than today depending on the SSP-RCP scenarios. By 2050, river export of TDN and TDP is 52% and 56% higher than in 2012, respectively, in SSP3-RCP8.5 (assuming large challenges for sustainable socio-economic development, and severe climate change). In contrast, river export of nutrients could be 56% (TDN) and 85% (TDP) lower in 2050 than in 2012 in SSP1-RCP2.6 (assuming sustainable socio-economic development, and low climate change). Climate change alone may increase river export of nutrients considerably through hydrology: We calculate 24% higher river export of TDN and 16% higher TDP for the SSP2 scenario assuming severe climate change compared to the same scenario with low climate change (SSP2-RCP8.5 vs. SSP2-RCP2.6). Policies and relevant technologies combining improved nutrient management and climate mitigation may help to improve water quality in rivers and coastal waters of China.

    Pyrolyse ter bepaling van de kwaliteit van organische stof in mest
    Boer, Herman de; Brolsma, Karst ; Fleurkens, Bas ; Schoonbergen, Anneke ; Vliet, Petra van - \ 2020
    Wageningen : Wageningen Livestock Research (Wageningen Livestock Research rapport 1240) - 24
    Worsening of tree-related public health issues under climate change
    Jia, Peng ; Wang, Tiejun ; Vliet, Arnold J.H. van; Skidmore, Andrew K. ; Aalst, Maarten van - \ 2020
    Nature Plants 6 (2020)48. - ISSN 2055-026X
    Reply to Comment on "Multi-Scale Modeling of Nutrient Pollution in the Rivers of China"
    Chen, Xi ; Strokal, Maryna ; Vliet, Michelle T.H. Van; Stuiver, John ; Wang, Mengru ; Bai, Zhaohai ; Ma, Lin ; Kroeze, Carolien - \ 2020
    Environmental Science and Technology 54 (2020)3. - ISSN 0013-936X - p. 2046 - 2047.
    Phosphorus recovered from human excreta: A socio-ecological-technical approach to phosphorus recycling
    Kooij, S. van der; Vliet, B.J.M. van; Stomph, T.J. ; Sutton, N.B. ; Anten, N.P.R. ; Hoffland, E. - \ 2020
    Resources, Conservation and Recycling 157 (2020). - ISSN 0921-3449 - 11 p.
    Phosphorus recycling - Sewage sludge - Source-separated urine - Struvite - Circular economy - Socio-ecological-technical approach
    This article provides a comprehensive and cross-disciplinary overview of the phosphorus cycle through the wastewater and agri-food system. While mineral phosphorus stocks are finite, the use of mined phosphorus is accompanied with many losses, leading to pollution of water bodies. Recovering phosphorus from human excreta can contribute to more efficient use of phosphorus to ensure its availability for food production in the future. Phosphorous can be recovered through different recovery technologies and consequently used in agriculture via different recycling routes. Each recycling route has its own particularities in terms of interactions with technologies, actors and the environment to bring the recovered phosphorus back into agriculture. In this literature review, we adopt a socio-ecological-technical approach to map three phosphorus-recycling routes, via municipal sewage sludge, struvite recovered from municipal wastewater and source-separated urine. We firstly show that improvements are still needed in all three routes for achieving high P recovery efficiency, and a combination of these recycling routes are needed to achieve maximum recovery of phosphorus. Second, we identify key issues for each recycling route that currently limit the use of recovered phosphorus in agriculture. We indicate where interaction between disciplines is needed to improve recycling routes and identify gaps in research on how recovered phosphorus accesses agriculture.
    Hoe ga je om met door storm afgewaaide oude eikenprocessierupsnesten?
    Vliet, A.J.H. van; Hellingman, S. ; Kuppen, Henry ; Jans, Henk - \ 2020
    Nature Today
    Door de storm Ciara die gepaard ging met zware windstoten, zullen op veel plaatsen oude eikenprocessierupsnesten uit de bomen gewaaid zijn. Deze nesten zitten bomvol brandharen die bij contact gezondheidsproblemen kunnen veroorzaken bij mens en dier. Veel mensen herkennen de nesten niet als van de eikenprocessierups. Het advies is om afgevallen nesten door professionals te laten verwijderen.
    Er is een grote volksverhuizing gaande in de Nederlandse natuur
    Wamelink, Wieger ; Vliet, Arnold van - \ 2020
    Silicon dioxide and titanium dioxide particles found in human tissues
    Peters, Ruud J.B. ; Oomen, Agnes G. ; Bemmel, Greet van; Vliet, Loes van; Undas, Anna K. ; Munniks, Sandra ; Bleys, Ronald L.A.W. ; Tromp, Peter C. ; Brand, Walter ; Lee, Martijn van der - \ 2020
    Nanotoxicology 14 (2020)3. - ISSN 1743-5390 - p. 420 - 432.
    human tissue - nanoparticle - silica - Silicon dioxide - single particle ICP-MS - titanium dioxide

    Silicon dioxide (silica, SiO2, SAS) and titanium dioxide (TiO2) are produced in high volumes and applied in many consumer and food products. As a consequence, there is a potential human exposure and subsequent systemic uptake of these particles. In this study we show the characterization and quantification of both total silicon (Si) and titanium (Ti), and particulate SiO2 and TiO2 in postmortem tissue samples from 15 deceased persons. Included tissues are liver, spleen, kidney and the intestinal tissues jejunum and ileum. Low-level analysis was enabled by the use of fully validated sample digestion methods combined with (single particle) inductively coupled plasma high resolution mass spectrometry techniques (spICP-HRMS). The results show a total-Si concentration ranging from <2 to 191 mg Si/kg (median values of 5.8 (liver), 9.5 (spleen), 7.7 (kidney), 6.8 (jejunum), 7.6 (ileum) mg Si/kg) while the particulate SiO2 ranged from <0.2 to 25 mg Si/kg (median values of 0.4 (liver), 1.0 (spleen), 0.4 (kidney), 0.7 (jejunum, 0.6 (ileum) mg Si/kg), explaining about 10% of the total-Si concentration. Particle sizes ranged from 150 to 850 nm with a mode of 270 nm. For total-Ti the results show concentrations ranging from <0.01 to 2.0 mg Ti/kg (median values of 0.02 (liver), 0.04 (spleen), 0.05 (kidney), 0.13 (jejunum), 0.26 (ileum) mg Ti/kg) while particulate TiO2 concentrations ranged from 0.01 to 1.8 mg Ti/kg (median values of 0.02 (liver), 0.02 (spleen), 0.03 (kidney), 0.08 (jejunum), 0.25 (ileum) mg Ti/kg). In general, the particulate TiO2 explained 80% of the total-Ti concentration. This indicates that most Ti in these organ tissues is particulate material. The detected particles comprise primary particles, aggregates and agglomerates, and were in the range of 50–500 nm with a mode in the range of 100–160 nm. About 17% of the detected TiO2 particles had a size <100 nm. The presence of SiO2 and TiO2 particles in liver tissue was confirmed by scanning electron microscopy with energy dispersive X-ray spectrometry.

    Sturen op mestkwaliteit
    Boer, Herman de; Brolsma, Karst ; Fleurkens, B. ; Schoonbergen, A. ; Vliet, Petra van - \ 2020
    Balancing indicators for sustainable intensification of crop production at field and river basin levels
    Chukalla, Abebe Demissie ; Reidsma, Pytrik ; Vliet, Michelle T.H. van; Silva, João Vasco ; Ittersum, Martin K. van; Jomaa, Seifeddine ; Rode, Michael ; Merbach, Ines ; Oel, Pieter R. van - \ 2020
    Science of the Total Environment 705 (2020). - ISSN 0048-9697
    Crop production - Nitrogen-use efficiency - Selke Basin - Sustainable intensification - Water quality and quantity indicators - Water-use efficiency

    Adequate tools for evaluating sustainable intensification (SI) of crop production for agro-hydrological system are not readily available. Building on existing concepts, we propose a framework for evaluating SI at the field and river basin levels. The framework serves as a means to assess and visualise SI indicator values, including yield, water-use efficiency and nitrogen-use efficiency (NUE), alongside water and nitrogen surpluses and their effects on water quantity and quality. To demonstrate the SI assessment framework, we used empirical data for both the field level (the Static Fertilization Experiment at Bad Lauchstädt) and the river basin level (the Selke basin, 463 km2) in central Germany. Crop yield and resource use efficiency varied considerably from 1980 to 2014, but without clear trends. NUE frequently fell below the desirable range (<50%), exposing the environment to a large N surplus (>80 kg N ha−1). For the catchment as a whole, the average nitrate-N concentration (3.6 mg L−1) was slightly higher than the threshold of 2.5 mg L−1 nitrate-N in surface water. However, weather and climate-related patterns, due to their effects on transport capacity and dilution, influenced water quantity and quality indicators more than agronomic practices. To achieve SI of crop production in the Selke basin, irrigation and soil moisture management are required to reduce yield variability and reduce N surpluses at field level. In addition, optimum application of fertiliser and manure could help to reduce the nitrate-N concentration below the set water quality standards in the Selke basin. In this way, there is scope for increase in yields and resource use efficiencies, and thus potential reduction of environmental impacts at basin level. We conclude that the framework is useful for assessing sustainable production, by simultaneously considering objectives related to crop production, resource-use efficiency and environmental quality, at both field and river basin levels.

    Wat zegt de wetenschap over hooikoorts? : Hebben we steeds vaker last van hooikoorts?
    Vliet, A.J.H. van - \ 2019
    Universiteit van Nederland
    De lente was er al vroeg bij dit jaar. En de pollen daarom ook! Dr. ir. Arnold van Vliet (Wageningen University) legt uit hoe het komt dat we steeds vaker last hebben van hooikoorts.
    Co-Designing a Citizen Science Program for Malaria Control in Rwanda
    Asingizwe, Domina ; Milumbu Murindahabi, Marilyn ; Koenraadt, Constantianus J.M. ; Poortvliet, Marijn ; Vliet, Arnold J.H. Van; Ingabire, Chantal M. ; Hakizimana, Emmanuel ; Mutesa, Leon ; Takken, Willem ; Leeuwis, Cees - \ 2019
    Sustainability 11 (2019)24. - ISSN 2071-1050
    Good health and human wellbeing is one of the sustainable development goals. To achieve this goal, many efforts are required to control infectious diseases including malaria which remains a major public health concern in Rwanda. Surveillance of mosquitoes is critical to control the disease, but surveillance rarely includes the participation of citizens. A citizen science approach (CSA) has been applied for mosquito surveillance in developed countries, but it is unknown whether it is feasible in rural African contexts. In this paper, the technical and social components of such a program are described. Participatory design workshops were conducted in Ruhuha, Rwanda. Community members can decide on the technical tools for collecting and reporting mosquito species, mosquito nuisance, and confirmed malaria cases. Community members set up a social structure to gather observations by nominating representatives to collect the reports and send them to the researchers. These results demonstrate that co-designing a citizen science program (CSP) with citizens allows for decision on what to use in reporting observations. The decisions that the citizens took demonstrated that they have context-specific knowledge and skills, and showed that implementing a CSP in a rural area is feasible. View Full-Text
    Aantal eikenprocessierupsen in jaar tijd verdriedubbeld in Nederland
    Vliet, Arnold van - \ 2019
    Maartse regen: net op tijd voor smachtende natuur; Lente: Wat doet de warme februari met de natuur?
    Vliet, Arnold van - \ 2019
    Eikenprocessierups gaat voor grote overlast zorgen
    Vliet, Arnold van - \ 2019
    Vliet, Arnold van - \ 2019
    Vroeg begin hooikoortsseizoen
    Vliet, Arnold van - \ 2019
    Eerder bloeiende fruitbomen een extra risico bij nachtvorst
    Vliet, Arnold van - \ 2019
    Windmolens pletten insecten
    Vliet, Arnold van - \ 2019
    Pollenklachten door droog weer verwacht
    Vliet, Arnold van - \ 2019
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