Articles | Volume 19, issue 16
https://doi.org/10.5194/bg-19-3825-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-3825-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Stable isotope profiles of soil organic carbon in forested and grassland landscapes in the Lake Alaotra basin (Madagascar): insights in past vegetation changes
Vao Fenotiana Razanamahandry
CORRESPONDING AUTHOR
Department of Earth and Environmental Sciences, KU Leuven, Leuven,
Belgium
Marjolein Dewaele
Department of Earth and Environmental Sciences, KU Leuven, Leuven,
Belgium
Gerard Govers
Department of Earth and Environmental Sciences, KU Leuven, Leuven,
Belgium
Liesa Brosens
Department of Earth and Environmental Sciences, KU Leuven, Leuven,
Belgium
Research Foundation Flanders (FWO), Egmontstraat 5, 1000 Brussels,
Belgium
Benjamin Campforts
Institute for Arctic and Alpine Research, University of Colorado at
Boulder, Boulder, CO, USA
Liesbet Jacobs
Department of Earth and Environmental Sciences, KU Leuven, Leuven,
Belgium
Institute for Biodiversity and Ecosystem Dynamics, University of
Amsterdam, Amsterdam, the Netherlands
Tantely Razafimbelo
Laboratoire des Radio-Isotopes, Université d'Antananarivo,
Antananarivo, Madagascar
Tovonarivo Rafolisy
Laboratoire des Radio-Isotopes, Université d'Antananarivo,
Antananarivo, Madagascar
Steven Bouillon
Department of Earth and Environmental Sciences, KU Leuven, Leuven,
Belgium
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Cited
12 citations as recorded by crossref.
- The grassy ecosystems of Madagascar in context: Ecology, evolution, and conservation J. Silander et al.
- Fire incongruities can explain widespread landscape degradation in Madagascar's forests and grasslands G. Joseph et al.
- A possible role of NDVI time series from Landsat Mission to characterize lemurs habitats degradation in Madagascar F. Ghilardi et al.
- Soil Organic Carbon Mineralization in Tropical Grasslands: Role of Perennial Grass Species and Rhizodeposition N. Kerketta et al.
- Spatially variable organic-matter-driven clogging in a stormwater infiltration pond: Isotopic, microbiological and hydrogeological evidence D. Pedretti et al.
- Biogeochemical functioning of Lake Alaotra (Madagascar): a reset of aquatic carbon sources along the land–ocean aquatic continuum V. Razanamahandry et al.
- Spatiotemporal patterns of airborne microbial communities in forest and grassland ecosystems C. Cornell et al.
- A 3.5-year rainfall isotope records from northwestern Madagascar featuring 17Oexcess and implication for paleoclimate research N. Voarintsoa
- Across Madagascar, treeless grasslands characterised by erosion gullies are named after forest and trees G. Joseph et al.
- Advancing transdisciplinary research on Madagascar's grassy biomes to support resilience in ecosystems and livelihoods L. Phelps et al.
- Commentary: The role of palaeoecology in reconciling biodiversity conservation, livelihoods, and carbon storage in Madagascar G. Joseph & C. Seymour
- Stable carbon isotopic tracing of organic matter transformation and soil CO2 sources across tropical sub-humid to semi-arid climates A. Laskar et al.
12 citations as recorded by crossref.
- The grassy ecosystems of Madagascar in context: Ecology, evolution, and conservation J. Silander et al.
- Fire incongruities can explain widespread landscape degradation in Madagascar's forests and grasslands G. Joseph et al.
- A possible role of NDVI time series from Landsat Mission to characterize lemurs habitats degradation in Madagascar F. Ghilardi et al.
- Soil Organic Carbon Mineralization in Tropical Grasslands: Role of Perennial Grass Species and Rhizodeposition N. Kerketta et al.
- Spatially variable organic-matter-driven clogging in a stormwater infiltration pond: Isotopic, microbiological and hydrogeological evidence D. Pedretti et al.
- Biogeochemical functioning of Lake Alaotra (Madagascar): a reset of aquatic carbon sources along the land–ocean aquatic continuum V. Razanamahandry et al.
- Spatiotemporal patterns of airborne microbial communities in forest and grassland ecosystems C. Cornell et al.
- A 3.5-year rainfall isotope records from northwestern Madagascar featuring 17Oexcess and implication for paleoclimate research N. Voarintsoa
- Across Madagascar, treeless grasslands characterised by erosion gullies are named after forest and trees G. Joseph et al.
- Advancing transdisciplinary research on Madagascar's grassy biomes to support resilience in ecosystems and livelihoods L. Phelps et al.
- Commentary: The role of palaeoecology in reconciling biodiversity conservation, livelihoods, and carbon storage in Madagascar G. Joseph & C. Seymour
- Stable carbon isotopic tracing of organic matter transformation and soil CO2 sources across tropical sub-humid to semi-arid climates A. Laskar et al.
Saved (final revised paper)
Latest update: 06 May 2026
Short summary
In order to shed light on possible past vegetation shifts in the Central Highlands of Madagascar, we measured stable isotope ratios of organic carbon in soil profiles along both forested and grassland hillslope transects in the Lake Alaotra region. Our results show that the landscape of this region was more forested in the past: soils in the C4-dominated grasslands contained a substantial fraction of C3-derived carbon, increasing with depth.
In order to shed light on possible past vegetation shifts in the Central Highlands of...
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