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Using targeted soil coring for contrasting fire return intervals, combined with the determination of the age of Pењњ (usingnatural 14C abundance) across the profile, we will be able to derive residence times of this stable soil carbon reservoir. This provides an ideal experimental set-up, as these fire prone systems have a significant abundance of Pењњ in the soil profile, and we will be able to link to a long-term fire manipulation field experiments in the LopГ© National Park. We will achieve this through a number of experiments based in a tropical savannah system in Gabon. In this project, we aim to create a novel soil-Pењњ model that can be linked to regional and global carbon-climate models, which so far ignore Pењњ. Biological processes, such as the role of invertebrate soil animals and different groups of soil microbial organisms have so far not received sufficient attention. We require a much better understanding of processes underlying the changes of Pењњ particles, and stabilisation of carbon introduced to the soil after fire, in order to model current Pењњ dynamics, and be able to forecast these under future climates. Remarkably, however, we largely ignore the fate and overall contribution of Pењњ to global carbon cycling. Pењњ has an inherently slow turnover once it is in the soil, meaning that it will persist much longer than organic matter deposited on or in soils that have not been exposed to fire. Storage of pyrogenic carbon in soils matters a lot to the way in which natural and managed ecosystems interact with the global climate system.

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Drivers of methane (CH4) fluxes in peatlandsД¬urrent projects Stabilisation of pyrogenic carbon in tropical grasslands (NERC 2019-2023)Д®very year, fires burn more than 500 million ha of the land surface on Earth, generating вЂњpyrogenic carbonвЂќ (Pењњ).Plant-soil interactions in the decomposition of soil carbon in the rhizosphere.Peatland carbon storage and greenhouse gas balance.

Formation and decomposition of soil organic matter.

Plant-soil interactions at the boreal treeline.

Environmental controls of CO2 flux dynamics.

My research includes the following themes: I am an ecosystem scientist interested in understanding the response of terrestrial ecosystems to changes in environmental conditions, whether these are a result of climatic change, human land use, or perturbations from pollution.