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The effect of future global climate and land-use change on greenhouse gas fluxes and microbial processes in salt marshes

The effect of future global climate and land-use change on greenhouse gas fluxes and microbial processes in salt marshes

Objective

Coastal wetlands are globally important ecosystems providing valuable ecosystem services, such as carbon sequestration over long timescales, affecting global carbon cycling and climate modulation. The amount of carbon sequestered, and therefore the net long-term global cooling potential of coastal marshes, however, is affected by complex biogeochemical reactions in marsh soils, which may produce and/or consume all three of the major greenhouse gases (GHGs) (carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O)). The magnitude and direction of these fluxes, and whether marsh soils act as a source or sink of GHGs, is affected by a variety of environmental factors which are predicted to vary with projected global change. MarshFlux, therefore, aims to address fundamental gaps in understanding of how the global cooling potential of coastal marshes will be affected by responses of biogeochemical reaction rates and GHG fluxes to global change. The effect of multiple drivers of global change on the response of GHG fluxes and key microbial processes for the consumption and production of N2O and CH4, will be investigated using a novel combination of laboratory incubations and mesocosm experiments. Laboratory incubation experiments mimicking modelled global change scenarios will be conducted to constrain the effects of drivers on marsh soil biogeochemical reaction rates and subsequent GHG dynamics, focusing on temperature, nutrient-loading and salinity. The results of these experiments, while critical themselves, will then inform mesocosm experiments to allow for the assessment of the whole ecosystem (soil, water and vegetation) response to global change under current and predicted future conditions. This research is critical for effective management of coastal wetlands to maintain their blue carbon value under future global change.
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Coordinator

THE UNIVERSITY OF BIRMINGHAM

Address

Edgbaston
B15 2tt Birmingham

United Kingdom

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 276 498,24

Partners (1)

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ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING MCGILL UNIVERSITY

Project information

Grant agreement ID: 838296

Status

Grant agreement signed

  • Start date

    1 January 2020

  • End date

    31 December 2022

Funded under:

H2020-EU.1.3.2.

  • Overall budget:

    € 276 498,24

  • EU contribution

    € 276 498,24

Coordinated by:

THE UNIVERSITY OF BIRMINGHAM

United Kingdom