Stable isotope signatures of soil nitrogen on an environmental–geomorphic gradient  within the Congo Basin

Baumgartner, Simon; Bauters, Marijn; Barthel, Matti; Drake, Travis W.; Ntaboba, Landry C.; Bazirake, Basile M.; Six, Johan; Boeckx, Pascal; Van Oost, Kristof

doi:https://doi.org/10.5194/soil-7-83-2021

Articles | Volume 7, issue 1

https://doi.org/10.5194/soil-7-83-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Tropical biogeochemistry of soils in the Congo Basin and the...

https://doi.org/10.5194/soil-7-83-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 7, issue 1

Original research article

|

30 Mar 2021

Original research article |

| 30 Mar 2021

Stable isotope signatures of soil nitrogen on an environmental–geomorphic gradient within the Congo Basin

Simon Baumgartner, Marijn Bauters, Matti Barthel, Travis W. Drake, Landry C. Ntaboba, Basile M. Bazirake, Johan Six, Pascal Boeckx, and Kristof Van Oost

Supplement

https://doi.org/10.5194/soil-7-83-2021-supplement

Data sets

Stable isotope signatures of soil nitrogen on an environmental-geomorphic gradient within the Congo Basin Simon Baumgartner, Marijn Bauters, Matti Barthel, Travis W. Drake, Landry C. Ntaboba, Basile M. Bazirake, Johan Six, Pascal Boeckx, and Kristof Van Oost https://doi.org/10.5281/zenodo.4113895

Short summary

We compared stable isotope signatures of soil profiles in different forest ecosystems within the Congo Basin to assess ecosystem-level differences in N cycling, and we examined the local effect of topography on the isotopic signature of soil N. Soil δ¹⁵N profiles indicated that the N cycling in in the montane forest is more closed, whereas the lowland forest and Miombo woodland experienced a more open N cycle. Topography only alters soil δ¹⁵N values in forests with high erosional forces.