Wageningen UR BSc and MSc Project Database

BSc-MSc Thesis and Internship Projects, Wageningen University

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Uncertain data: Positional accuracy of soil sample locations
Digital soil mapping depends on the statistical relationships between soil measurements and environmental covariates at the sample locations. Whenever an error is present in these locations, a discrepancy between the measurement a ...
Supervisor: Cynthia van Leeuwen (SGL WUR / ISRIC) and Titia Mulder (SGL WUR)
Department: Soil Geography and Landscape

Proximal sensing: Validation of soil bulk density sensor (MS-Rho) over a range of soil types and densities correcting for soil moisture
At the moment, a new sensor is under development to estimate soil bulk density. However, we have a limited validation dataset for the bulk density sensor. The more dense and very loose soils are missing. The aim would be to gather ...
Supervisor: Titia Mulder (SGL WUR) and Fenny van Egmond (WENR)
Department: Soil Geography and Landscape

Landscape Evolution: Fieldwork and Modelling Scenarios
Combine in a selected landscape (to be chosen) fieldwork (mapping, sampling, measuring) with LEM modelling and scenarios on the driving factors of landscape development or landscape evolution, with emphasis on e.g. sensitivity ana ...
Supervisor: Jeroen Schoorl
Department: Soil Geography and Landscape

Alluvial processes of terrace formation: OSL-IRSL dating and the different bleaching signals
Dating signals in river terrace sediments may vary following a river terrace down stream. The signal may become younger or older. What are the possible mechanisms? Can OSL techniques increase the knowledge about depositional proce ...
Supervisor: Jeroen Schoorl
Department: Soil Geography and Landscape

Mapping plant-available water holding capacity of the soil of sub-Saharan Africa to support crop production
In rainfed crop production, the root zone plant-available water holding capacity of the soil has a large influence on crop growth and yield response to management inputs, such as improved seeds and fertilisers. However, maps of th ...
Supervisor: G.B.M. Heuvelink
J.G.B. Leenaars (ISRIC - World Soil Information)
Department: Soil Geography and Landscape

Busy beavers capture carbon
Environmental scientists have proposed drawing carbon out of the air and burying it to reduce greenhouse gasses and the impact of climate change. Maybe we can take some tips from natureâ€™s own eco-engineers â€“ beavers â€“ which ...
Supervisor: Annegret Larsen
Department: Soil Geography and Landscape

Digital Soil Mapping: Random Forest spatial interpolation
The thesis research will begin with a literature review of machine learning for soil mapping. Next you will study the RFSI algorithm and apply it to a test dataset. This is all done in R, using existing scripts that need slight mo ...
Supervisor: Gerard Heuvelink
Department: Soil Geography and Landscape

Uncertainty propagation in global soil organic carbon stock estimation
There is much worldwide interest in accurate estimation of the global soil organic carbon stock. This is because soil carbon storage can help mitigate climate change. For instance, the 4per1000 initiative (https://www.4p1000.org/) ...
Supervisor: Gerard Heuvelink
Department: Soil Geography and Landscape

Validity of feldspar pIRIR dating - does light exposure prior to burial influence luminescence sensitivity and burial dose estimation?
Feldspar luminescence dating methods are widely used in Quaternary geology, especially for sediments where quartz OSL dating is not possible. For equivalent dose estimation, the single-aliquot regenerative (SAR) dose method is ...
Supervisor: Jakob Wallinga
Department: Soil Geography and Landscape

Shedding light on meander development in response to climate and people; OSL dating of sediments of the Overijsselse Vecht.
The Overijsselse Vecht is largely canalized and controlled by weirs. However, the ambition is to restore the stream to a half-natural lowland river. To make informed decissions, we need better insight in how the system functioned ...
Supervisor: Jakob Wallinga, Jasper Candel, Bart Makase
Department: Soil Geography and Landscape

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