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Towards accurate carbon accounting in Danish peatlands: Mapping peat soil properties using state-of-the-art geophysical sensors

PhD defence, Wednesday, 18 December 2024, Diana Vigah Adetsu

Photo: Diana Vigah Adetsu

During her PhD studies, Diana Vigah Adetsu evaluated the capabilities of on-the-go geophysical sensing methods for cost-effective and accurate mapping of peat soil properties. Agricultural drainage undermines the carbon sink function of peatlands, leading to significant greenhouse gas emissions and highlighting the urgent need for restoration. Accurate and rapid methods for peatland carbon stock monitoring are essential for guiding restoration efforts. To address the limitations of traditional peatland mapping methods, Diana Vigah Adetsu evaluated the capability of high-resolution remote and proximal electromagnetic induction and radiometric datasets for improved spatial estimation of key peat soil properties –such as peat thickness and extent – necessary for carbon accounting and tailoring site-specific restoration actions.
The research findings enhance understanding of the suitability of different geophysical sensing techniques for identifying and routinely mapping peatlands, enabling timely restoration efforts to support climate goals.
 

The PhD study was completed at Department of Agroecology, Faculty of Technical Sciences, Aarhus University.

This summary was prepared by the PhD student.

Time: Wednesday 18 December at 10am
Place: 8814-3075, Auditorium, Department of Agroecology, AU Foulom, Blichers Allé 20, 8830 Tjele
Title of PhD thesis: Improved mapping and characterization of peatlands using on-the-go geophysical sensors
Contact information: Diana Vigah Adetsu, e-mail: dianavigah.adetsu@agro.au.dk , tel.: +45 52675563
Members of the assessment committee:
Associate Professor Majken Caroline Looms Zibar, Department of Geosciences and Natural Resource Management, University of Copenhagen, Denmark
Senior Researcher Jim Rasmussen (chair), Department of Agroecology, Aarhus University, Denmark
Main supervisor:
Professor Mogens H. Greve, Department of Agroecology, Aarhus University, Denmark
Co-supervisor:
Assistant Professor Amélie Beucher, Department of Agroecology, Aarhus University, Denmark
Assistant Professor Triven Koganti, Department of Agroecology, Aarhus University, Denmark
Language: The PhD dissertation will be defended in English

The defence is public.
The PhD thesis is available for reading at the Graduate School of Technical Sciences/GSTS, Ny Munkegade 120, building 1521, 8000 Aarhus C.