Articles | Volume 7, issue 2
https://doi.org/10.5194/soil-7-693-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-7-693-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Original research article
| 
26 Oct 2021
Original research article |
| 26 Oct 2021
| 26 Oct 2021
The central African soil spectral library: a new soil infrared repository and a geographical prediction analysis
Laura Summerauer
CORRESPONDING AUTHOR
Department of Environmental Systems Science, ETH Zurich, Zurich Switzerland
Philipp Baumann
Department of Environmental Systems Science, ETH Zurich, Zurich Switzerland
Leonardo Ramirez-Lopez
Data Science Department, BUCHI Labortechnik AG, Flawil, Switzerland
Matti Barthel
Department of Environmental Systems Science, ETH Zurich, Zurich Switzerland
Marijn Bauters
Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium
Department of Environment, Ghent University, Ghent, Belgium
Benjamin Bukombe
Institute of Geography, University of Augsburg, Augsburg, Germany
Mario Reichenbach
Institute of Geography, University of Augsburg, Augsburg, Germany
Pascal Boeckx
Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium
Elizabeth Kearsley
Department of Environment, Ghent University, Ghent, Belgium
Kristof Van Oost
Earth and Life Institute, UCLouvain, Louvain-la-Neuve, Belgium
Bernard Vanlauwe
International Institute of Tropical Agriculture, Nairobi, Kenya
Dieudonné Chiragaga
International Institute of Tropical Agriculture, Bukavu, Democratic Republic of Congo
Aimé Bisimwa Heri-Kazi
Earth and Life Institute, UCLouvain, Louvain-la-Neuve, Belgium
Pieter Moonen
Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium
Andrew Sila
World Agroforestry Centre, Nairobi, Kenya
Keith Shepherd
World Agroforestry Centre, Nairobi, Kenya
Basile Bazirake Mujinya
Department of General Agricultural Sciences, University of Lubumbashi, Lubumbashi, Democratic Republic of Congo
Eric Van Ranst
Department of Geology, Ghent University, Ghent, Belgium
Geert Baert
Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium
Sebastian Doetterl
Department of Environmental Systems Science, ETH Zurich, Zurich Switzerland
Institute of Geography, University of Augsburg, Augsburg, Germany
Johan Six
Department of Environmental Systems Science, ETH Zurich, Zurich Switzerland
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Latest update: 28 Nov 2025
Short summary
We present a soil mid-infrared library with over 1800 samples from central Africa in order to facilitate soil analyses of this highly understudied yet critical area. Together with an existing continental library, we demonstrate a regional analysis and geographical extrapolation to predict total carbon and nitrogen. Our results show accurate predictions and highlight the value that the data contribute to existing libraries. Our library is openly available for public use and for expansion.
We present a soil mid-infrared library with over 1800 samples from central Africa in order to...
