Project description
Understanding the impact of atmospheric dryness on forest productivity
Atmospheric dryness, represented by vapour pressure deficit (VPD), plays an important role in determining vegetation productivity and influencing global carbon cycles. As temperatures rise, VPD is expected to increase; yet its effects on carbon uptake by plants remain largely unknown. This uncertainty stems from the scarcity of long-term measurements, which hinders accurate predictions of how future VPD changes will affect global vegetation productivity. To address these challenges, the EU-funded VAPOR project aims to quantify the sensitivity of tree growth to VPD variations using long-term tree-ring data. Additionally, it will disentangle the effects of VPD and soil moisture during heatwaves through high-resolution satellite observations, ultimately refining predictions of forest productivity in a changing climate.
Objective
Atmospheric dryness, which is often quantified as a vapor pressure deficit (VPD), exerts significant influences on vegetation productivity and global carbon cycles. VPD is expected to rise in a warming world, but how this increased atmospheric dryness will impact the carbon uptake by vegetation remains largely unknown. One major challenge is the lack of long-term measurements, which limits studies to the recent decades when satellite and flux measurements are available. Moreover, disentangling the effects of VPD from other highly correlated factors such as soil moisture is difficult. This lack of understanding hampers our ability to make skillful predictions of how future VPD changes induced by climate change will affect vegetation productivity globally.
The VAPOR project seeks to address the existing knowledge gaps through a multi-timescale approach. First, the sensitivity of tree growth to VPD variations will be quantified on the decade-to-century timescale by leveraging global long-term tree-ring measurements as a proxy for forest productivity. Second, the independent effects of VPD and soil moisture on forest productivity during heatwaves will be disentangled using sub-diurnal high-resolution satellite observations from the last decades. Finally, output from global coupled climate simulations will be evaluated based on the insights from the previous findings, and emergent constraints will be applied to mitigate uncertainties in future projects of forest productivity based on relationships emerging from the multi-model ensemble and current observations. The constrained model results will then be used to evaluate the implications of future VPD changes on forest productivity and functioning. By embarking on this endeavor, I aim to deepen the understanding of the influence of VPD on vegetation productivity, while concurrently developing and improving my own research capabilities.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
This project's classification has been human-validated.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
This project's classification has been human-validated.
- natural sciences earth and related environmental sciences hydrology ecohydrology
- engineering and technology mechanical engineering vehicle engineering aerospace engineering satellite technology
- natural sciences biological sciences ecology ecosystems
- natural sciences earth and related environmental sciences atmospheric sciences climatology climatic changes
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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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.
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.
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.
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.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2023-PF-01
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
412 96 Goteborg
Sweden
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.