Discovery Projects - Grant ID: DP160102452 [ 2016 - 2020 ]

Research Grant

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Researchers Prof David Ellsworth; Dr Oula Ghannoum; Dr Sönke Zaehle; Dr Yolima Carrillo

Brief description The project proposes to explore how tissue nitrogen declines in future elevated carbon dioxide (eCO2) by studying the availability of soil nitrogen to plants and use of nitrogen by Eucalyptus woodland trees. Plant canopy nitrogen concentrations decline in nearly every large-scale eCO2 study done on native soils. The project plans to explore how changes in ecosystem nitrogen balance occur, by investigating if leaf nitrogen declines under eCO2 due to the balance of plant activity versus changes in soil nitrogen availability. The outcomes are central to knowing the extent to which extra nitrogen ‘feeds’ the eCO2 fertilisation response and sustains long-term increases in productivity. Expected outcomes may support the development of management options to sustain future forest productivity.

Funding Amount $355,800

Funding Scheme Discovery Projects

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