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Content archived on 2024-05-27

Predicting carbon release from forest soils through priming effects: a new approach to reconcile results across multiple scales

Objective

Feedbacks between plants and soil under environmental change are likely to have a significant impact on ecosystem carbon cycling. Recent work has shown that increased atmospheric carbon dioxide concentrations have enhanced tree growth in forests. However these increases in growth can also cause ‘priming effects’ whereby microbial degradation of soil organic matter is stimulated by fresh carbon inputs, such as plant litter, releasing additional carbon from the soil. Given that forest soils represent the largest terrestrial carbon pool, priming effects could cause a major release of carbon dioxide to the atmosphere. Despite their potential importance in ecosystem carbon dynamics under environmental change, the processes and mechanisms underlying priming effects are still poorly understood. This is in part due to the enormous disparities in the experimental scales and methods required to study microbial processes vs. ecosystem carbon dynamics and the difficulties in extrapolating the results of laboratory studies to the ecosystem level. This project will significantly advance our understanding of the role of priming effects in forest carbon dynamics in different forest types and reconcile the experimental problems of scale using multidisciplinary nested studies across multiple scales. The nested design will explicitly test the validity of extrapolations made at one scale to predict effects at another. The ultimate aim is to allow the extrapolation of results from small-scale studies of priming to the ecosystem level for a wide range of forests. The results will establish this fundamentally new approach as a widely applicable method in the study of plant-soil feedbacks. This research will provide the first comprehensive comparative dataset on priming effects across forests worldwide and form the solid basis for their inclusion in model predictions of forest carbon cycling under future global change.

Fields of science (EuroSciVoc)

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Topic(s)

Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.

Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

ERC-2012-StG_20111012
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Funding Scheme

Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.

ERC-SG - ERC Starting Grant

Host institution

UNIVERSITY OF LANCASTER
EU contribution
€ 1 172 990,24
Address
BAILRIGG
LA1 4YW LANCASTER
United Kingdom

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Region
North West (England) Lancashire Lancaster and Wyre
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

No data

Beneficiaries (3)

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