Plants, climate change, carbon and nutrient cycling, and biodiversity

The University of Sheffield is offering PhD projects focused on the impacts of climate change on biodiversity, carbon cycling, and nutrient cycling in ecosystems. Research will involve studying plant and soil responses to climate changes in various landscapes, including arctic and boreal regions. Candidates should have an interest in climate change, plants, and soils, and will receive training in various research methodologies. This position is full-time and based in the UK.
Climate change is one of the greatest threats to biodiversity and ecosystem functioning. We study the impacts of a wide range of climate changes including warming, extreme climatic events, increased carbon dioxide, rainfall and snow regime change and how these impact the biodiversity of ecosystems, and the capacity of ecosystems to cycle carbon and nutrients (https://sites.google.com/a/sheffield.ac.uk/phoenix-ecology-global-change-lab/). In the case of carbon cycling, we are especially interested in how ecosystem change alters ecosystem feedback to climate through changing uptake and release of greenhouse gases such as carbon dioxide and methane. We work on plants and soils, and the interaction between these. PhD projects can be undertaken in any of these areas to study plant, soil and ecosystem responses to climate change, either in the UK or overseas. Study locations include arctic, boreal or montane landscapes where some of the fastest rates of climate change is happening. Examples of topics include the impacts of acute (extreme) climate change events, such as drought and heat waves, on UK upland and arctic ecosystems, and comparing these impacts with those of gradual (trend) climate change. Such projects will include understanding inter-specific differences in plant response, and how individual species responses drive ecosystem responses. Such studies may lead to determining the impacts on the capacity of ecosystems to sequester carbon or cycle nutrients. Impacts of pollutant atmospheric nitrogen deposition, as a single factor or as a modifying factor in climate change responses can also be studied. Projects will suit those with an enthusiasm for understanding climate change impacts, plants and/or soils, and for combining field and lab based research. We will provide training in a diversity of methodologies for assessing ecosystem responses, from traditional survey and measurement techniques, through to advanced gas flux and hyperspectral analyses, plant physiology and soil chemistry.