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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Assessing the climate regulation potential of Agricultural soils using a decision support tool adapted to stakeholders' needs and possibilities
Broek, Marijn Van de; Henriksen, Christian Bugge ; Ghaley, Bhim Bahadur ; Lugato, Emanuele ; Kuzmanovski, Vladimir ; Trajanov, Aneta ; Debeljak, Marko ; Sandén, Taru ; Spiegel, Heide ; Decock, Charlotte ; Creamer, Rachel ; Six, Johan - \ 2019
Frontiers in Environmental Science 7 (2019). - ISSN 2296-665X
Soils perform many functions that are vital to societies, among which their capability to regulate global climate has received much attention over the past decades. An assessment of the extent to which soils perform a specific function is not only important to appropriately value their current capacity, but also to make well-informed decisions about how and where to change soil management to align the delivered soil functions with societal demands. To obtain an overview of the capacity of soils to perform different functions, accurate and easy-to-use models are necessary. A problem with most currently-available models is that data requirements often exceed data availability, while generally a high level of expert knowledge is necessary to apply these models. Therefore, we developed a qualitative model to assess how agricultural soils function with respect to climate regulation. The model is driven by inputs about agricultural management practices, soil properties and environmental conditions. To reduce data requirements on stakeholders, the 17 input variables are classified into either (1) three classes: low, medium and high or (2) the presence or absence of a management practice. These inputs are combined using a decision tree with internal integration rules to obtain an estimate of the magnitude of N2O emissions and carbon sequestration. These two variables are subsequently combined into an estimate of the capacity of a soil to perform the climate regulation function. The model was tested using data from long-term field experiments across Europe. This showed that the model is generally able to adequately assess this soil function across a range of environments under different management practices. In a next step, this model will be combined with models to assess other soil functions (soil biodiversity, primary productivity, nutrient cycling and water regulation and purification). This will allow the assessment of trade-offs between these soil functions for agricultural land across Europe.
Harvesting European knowledge on soil functions and land management using multi-criteria decision analysis
Bampa, Francesca ; O'Sullivan, Lilian ; Madena, Kirsten ; Sandén, Taru ; Spiegel, Heide ; Henriksen, Christian Bugge ; Ghaley, Bhim Bahadur ; Jones, Arwyn ; Staes, Jan ; Sturel, Sylvain ; Trajanov, Aneta ; Creamer, Rachel E. ; Debeljak, Marko - \ 2019
Soil Use and Management 35 (2019)1. - ISSN 0266-0032 - p. 6 - 20.
DEX model - farmers and multi-stakeholders - locally relevant advice - participatory research - soil quality

Soil and its ecosystem functions play a societal role in securing sustainable food production while safeguarding natural resources. A functional land management framework has been proposed to optimize the agro-environmental outputs from the land and specifically the supply and demand of soil functions such as (a) primary productivity, (b) carbon sequestration, (c) water purification and regulation, (d) biodiversity and (e) nutrient cycling, for which soil knowledge is essential. From the outset, the LANDMARK multi-actor research project integrates harvested knowledge from local, national and European stakeholders to develop such guidelines, creating a sense of ownership, trust and reciprocity of the outcomes. About 470 stakeholders from five European countries participated in 32 structured workshops covering multiple land uses in six climatic zones. The harmonized results include stakeholders’ priorities and concerns, perceptions on soil quality and functions, implementation of tools, management techniques, indicators and monitoring, activities and policies, knowledge gaps and ideas. Multi-criteria decision analysis was used for data analysis. Two qualitative models were developed using Decision EXpert methodology to evaluate “knowledge” and “needs”. Soil quality perceptions differed across workshops, depending on the stakeholder level and regionally established terminologies. Stakeholders had good inherent knowledge about soil functioning, but several gaps were identified. In terms of critical requirements, stakeholders defined high technical, activity and policy needs in (a) financial incentives, (b) credible information on improving more sustainable management practices, (c) locally relevant advice, (d) farmers’ discussion groups, (e) training programmes, (f) funding for applied research and monitoring, and (g) strengthening soil science in education.

Field-level model approach to assess water and nutrient use efficiencies : WaterFARMING project. Report for deliverable 2.1
Silva, J.V. ; Reidsma, P. ; Jomaa, S. ; Ghaley, B.B. ; Ittersum, M.K. van; Anten, N.P.R. - \ 2018
- 25 p.
- Two models have been chosen for field-level assessment of crop yields and water- and nutrient use efficiencies: WOFOST and DAISY.
- For WOFOST a post-doc (João Vasco Silva), who is an expert in this modelling approach has been added to the team. He is also the lead author of this report.
- For DAISY, a brief description of the model and data requirements are provided as a guide for the consortium on data needs.
- For WOFOST calibration and evaluation protocols and associated data needs have been worked out. Detailed templates have been developed and distributed in the team.
- For sites in Germany and the Netherlands detailed experiments have been chosen that are ideally suited for model calibration and evaluation. The quality and detail of the data available is very high. In Denmark, data are available from a combined food and energy system for the modelling task.
- Finding suitable experimental data for the other countries is ongoing, there being some challenges in this regard. In view of this we aim to find experimental data for at least one site in South Europe and one in North Africa.
Simulation of soil organic carbon effects on long-term winter wheat (Triticum aestivum) production under varying fertilizer inputs
Ghaley, Bhim B. ; Wösten, Henk ; Olesen, Jørgen E. ; Schelde, Kirsten ; Baby, Sanmohan ; Karki, Yubaraj K. ; Børgesen, Christen D. ; Smith, Pete ; Yeluripati, Jagadeesh ; Ferrise, Roberto ; Bindi, Marco ; Kuikman, Peter ; Lesschen, Jan Peter ; Porter, John R. - \ 2018
Frontiers in Plant Science 9 (2018). - ISSN 1664-462X
Crop productivity - DAISY model - Grain yield - Long-term experiment - Nitrogen - Pedotransfer functions - Plant available water

Soil organic carbon (SOC) has a vital role to enhance agricultural productivity and for mitigation of climate change. To quantify SOC effects on productivity, process models serve as a robust tool to keep track of multiple plant and soil factors and their interactions affecting SOC dynamics. We used soil-plant-atmospheric model viz. DAISY, to assess effects of SOC on nitrogen (N) supply and plant available water (PAW) under varying N fertilizer rates in winter wheat (Triticum aestivum) in Denmark. The study objective was assessment of SOC effects on winter wheat grain and aboveground biomass accumulation at three SOC levels (low: 0.7% SOC; reference: 1.3% SOC; and high: 2% SOC) with five nitrogen rates (0–200 kg N ha−1) and PAW at low, reference, and high SOC levels. The three SOC levels had significant effects on grain yields and aboveground biomass accumulation at only 0–100 kg N ha−1 and the SOC effects decreased with increasing N rates until no effects at 150–200 kg N ha−1. PAW had significant positive correlation with SOC content, with high SOC retaining higher PAW compared to low and reference SOC. The mean PAW and SOC correlation was given by PAW% = 1.0073 × SOC% + 15.641. For the 0.7–2% SOC range, the PAW increase was small with no significant effects on grain yields and aboveground biomass accumulation. The higher winter wheat grain and aboveground biomass was attributed to higher N supply in N deficient wheat production system. Our study suggested that building SOC enhances agronomic productivity at only 0–100 kg N ha−1. Maintenance of SOC stock will require regular replenishment of SOC, to compensate for the mineralization process degrading SOC over time. Hence, management can maximize realization of SOC benefits by building up SOC and maintaining N rates in the range 0–100 kg N ha−1, to reduce the off-farm N losses depending on the environmental zones, land use and the production system.

Impacts of climate change adaptation options on soil functions: A review of European case-studies
Hamidov, Ahmad ; Helming, Katharina ; Bellocchi, Gianni ; Bojar, Waldemar ; Dalgaard, Tommy ; Ghaley, Bhim Bahadur ; Hoffmann, Christian ; Holman, Ian ; Holzkämper, Annelie ; Krzeminska, Dominika ; Kvaernø, Sigrun H. ; Lehtonen, Heikki ; Niedrist, Georg ; Øygarden, Lillian ; Reidsma, Pytrik ; Roggero, Pier Paolo ; Rusu, Teodor ; Santos, Cristina ; Seddaiu, Giovanna ; Skarbøvik, Eva ; Ventrella, Domenico ; Żarski, Jacek ; Schönhart, Martin - \ 2018
Land Degradation and Development 29 (2018)8. - ISSN 1085-3278 - p. 2378 - 2389.
Soils are vital for supporting food security and other ecosystem services. Climate change can affect soil functions both directly and indirectly. Direct effects include temperature, precipitation, and moisture regime changes. Indirect effects include those that are induced by adaptations such as irrigation, crop rotation changes, and tillage practices. Although extensive knowledge is available on the direct effects, an understanding of the indirect effects of agricultural adaptation options is less complete. A review of 20 agricultural adaptation case‐studies across Europe was conducted to assess implications to soil threats and soil functions and the link to the Sustainable Development Goals (SDGs). The major findings are as follows: (a) adaptation options reflect local conditions; (b) reduced soil erosion threats and increased soil organic carbon are expected, although compaction may increase in some areas; (c) most adaptation options are anticipated to improve the soil functions of food and biomass production, soil organic carbon storage, and storing, filtering, transforming, and recycling capacities, whereas possible implications for soil biodiversity are largely unknown; and (d) the linkage between soil functions and the SDGs implies improvements to SDG 2 (achieving food security and promoting sustainable agriculture) and SDG 13 (taking action on climate change), whereas the relationship to SDG 15 (using terrestrial ecosystems sustainably) is largely unknown. The conclusion is drawn that agricultural adaptation options, even when focused on increasing yields, have the potential to outweigh the negative direct effects of climate change on soil degradation in many European regions.
Impacts of climate change adaptation options in agriculture on soil functions: : examples European case studies
Hamidov, A. ; Helming, K. ; Schönhart, M. ; Bellocchi, Gianni ; Bojar, W. ; Dalgaard, T. ; Ghaley, B.B. ; Hoffmann, C. ; Holman, I. ; Holzkämper, A. ; Krzeminska, D. ; Kvaerno, Sigrun H. ; Lehtonen, H. ; Niedrist, G. ; Oygarden, Lilian ; Reidsma, P. ; Roggero, P.P. ; Rusu, T. ; Santos, C. ; Seddaiu, G. ; Skarbøvik, E. ; Ventrella, Domenico ; Żarski, J. - \ 2017
In: Book of abstracts. - - p. 66 - 66.
Soil functions are fundamental for food security and for provision of ecosystem services for sustainable development. Climate change affects soil functions directly through changes in temperature, rainfall and moisture regimes, and indirectly via adapted management practices. While comprehensive evidence exists for the direct effects such as increased soil erosion risks, accelerated nutrient turnover and gas fluxes, less is known about how agricultural adaptation
pathways may affect soil functions. The objective of this study was to analyze the evidence from European case studies about the possible impacts of climate change adaptations on soil threats and soil functions, and link soil functions to the Sustainable Development Goals (SDGs). We analyzed 20 regional case studies across Europe using Driver-Pressure-State-Impact-Response (DPSIR) framework. Our major findings were (1) adaptation pathways reflected local conditions,
(2) reduced soil erosion threats and decelerated organic matter decline were anticipated in more than half of the cases, but soil compaction risks may increase in some areas, (3) the majority of adaptation pathways were expected to improve three soil functions, namely food and biomass production, carbon sequestration, and storing, filtering, transforming and recycling capacities,
with little evidence about possible implications for soil biodiversity, (4) the contribution of soil functions to SDGs suggests improvements regarding SDG 2 (food security and sustainable agriculture) and SDG 13 (climate action), whereas SDG 15 (terrestrial ecosystems) requires attention. In conclusion: while direct climate change effects are expected to increase soil degradation, agricultural adaptation may counteract this process in many regions in Europe.
The Impact of Policy Instruments on Soil Multifunctionality in the European Union
Vrebos, Dirk ; Bampa, Francesca ; Creamer, Rachel ; Gardi, Ciro ; Ghaley, Bhim ; Jones, Arwyn ; Rutgers, Michiel ; Sandén, Taru ; Staes, Jan ; Meire, Patrick - \ 2017
Sustainability 9 (2017)3. - ISSN 2071-1050
Agricultural ecosystems provide a range of benefits that are vital to human well-being. These benefits are dependent on several soil functions that are affected in different ways by legislation from the European Union, national, and regional levels. We evaluated current European Union soil-related legislation and examples of regional legislation with regard to direct and indirect impacts on five soil functions: the production of food, fiber, and fuel; water purification and regulation; carbon sequestration and climate regulation; habitat for biodiversity provisioning; and the recycling of nutrients/agro-chemicals. Our results illustrate the diversity of existing policies and the complex interactions present between different spatial and temporal scales. The impact of most policies, positive or negative, on a soil function is usually not established, but depends on how the policy is implemented by local authorities and the farmers. This makes it difficult to estimate the overall state and trends of the different soil functions in agricultural ecosystems. To implement functional management and sustainable use of the different soil functions in agricultural ecosystems, more knowledge is needed on the policy interactions as well as on the impact of management options on the different soil functions
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