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PhD students

Ahlberg Erik 

Although emissions of organic compounds are generally thought of as something connected to human activities, the emissions from forests and plants are actually larger. My research concerns the atmospheric aging (oxidation) of these biogenic compounds, after which they can form particles. Atmospheric particles are an important factor in earth's radiation budget as they are key components in cloud formation.
Link to personal webpage


Bolin Arvid 

Keywords: Pollination, Bumble bees, Modelling, Foraging, Cost-efficiency 

Pollinating insects, such as bumble bees and solitary bees, are declining which will affect both wild flowers and crops. How can we avoid this and what is our best course of action? The purpose of my PhD project is to develop a modeling framework to assess impacts on pollinating insects in the agricultural landscape to find out how we can mitigate the loss of these important insects.

I will be looking at how created habitat, for instance a strip alongside a field filled with flowers, could increase the number of bees and species. Since it costs money to create habitat, my project uses economic tools in combination with ecological to find the best solution both from the aspect of the bees as well as from the point of the taxpayer.

Link to personal webpage


Charrieau Laurie 

Keywords: Ocean acidification,  Foraminifera, Baltic Sea

Foraminifera are single-celled shell-bearing animals and they are excellent environmental conditions recorders. For my PhD project, I’m using foraminifera to improve our knowledge about the current ocean acidification. The aim is to combine past and present data to observe how much pH has changed over the last 200 years in the Baltic Sea region, and to predict eventual changes on coastal ecosystems in the future.
Link to personal webpage


Göransson Terese 

The overarching theme of my PhD project is the role of science in the international climate negotiations - pedal or break?
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Herbertsson Lina 

Key words: Pollination, Wild plants, Biodiversity, Pollinators, Ecosystem services, Agricultural landscapes

Agricultural intensification has been particularly harmful to flowering plants, which have suffered from eutrophication, herbicides and loss of meadows and traditional pastures. Because nine out of ten flowering plant species are pollinated by animals, declining populations of pollinating insects could pose an additional threat. Without pollinating insects, many flowering plants would set fewer or no seeds, there would be no bilberries in the forests, and we would suffer from reduced yields in insect-pollinated crops such as apples, strawberries and tomatoes.

I work with assessing how different components of modern agriculture affect wild pollinators and pollination. My main focus is wild plant pollination and biodiversity conservation, but in a few studies I have also assessed how insect-pollinated crops are affected by factors expected to benefit or harm wild pollinators.

Link to personal webpage


Herzog Simon 

During the last four decades the iron concentration has constantly increased along the Swedish coastline.The relatively high iron concentration might be one reason explaining the success of nitrogen fixing cyanobacteria in the Baltic Sea. The main objective of my PhD project is to better understand the fate of iron along the estuarine mixing zone and the ensuing consequences of the increasing iron concentration in the Baltic Sea.

Link to personal webpage


Hydbom Sofia 

Key words: soil, tillage, agriculture, fungi, bacteria

The foundation of our civilization is threatened. Past and current agricultural management with plowing has reduced soil carbon stocks, causing lower soil fertility, more soil erosion and nutrient leakage. However, to mitigate this problem, an increasing number of farmers worldwide have changed their soil management by reducing or abstaining from soil inverting plowing. Conservation tillage is the name used for this type of management. By reducing plowing, farmers hope to regain soil carbon content and reduce related problems. So there is benefits but what happens with the below ground communities? Since carbon and several nutrient cycles are driven by soil microbial processes it is important to understand how soil management effect soil bacteria and fungi. By combining agricultural field trials with microbiology I try to answer tillage-microorganism related questions that will hopefully aid in designing guidelines for preserving soil carbon but also add to the agro-microbiology pool of knowledge.

Link to personal webpage


Krumina Lelde 

Today the importance of environmental nanoparticles is unquestionable and highly recognized. A challenge in geochemical research is to understand the roles of these smallest of particles for distribution and bioavailability of elements, mineral growth and dissolution, and in catalysis and reaction pathways. In my PhD project I will address some of these issues. I will look at the reactivity of iron (oxyhydr)oxide nanoparticles focusing on: 1) adsorption and desorption reactions at water – nanoparticle interfaces; 2) dissolution and redox reactions involving nanoparticles.
Link to personal webpage


Livingston Jasmine 

I am looking at the role that climate change science, the work of the Intergovernmental Panel on Climate Change (IPCC) in particular, has in international policy.
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Martinsson Johan 

Keywords: Carbonaceous aerosol, Sources, Climatic effects, Health effects, Technique/Method development

Some fractions of airborne particles (atmospheric aerosols) cool the climate by scattering incoming light and creating more clouds, thus increase the albedo of Earth. Other fractions absorb sunlight and heat the climate. The carbon-containing fraction of the atmospheric particles can work in either direction; both warm and cool the climate. These different climatic effects of the carbon containing aerosol induce large uncertainty into the overall net climatic effect of these emissions.  These particles also have severe effects on human health. The World Health Organization has estimated 7 million premature deaths annually due to air pollution.

Source quantification and source characterization is important to deduce the sources of the particles. In my PhD-project I develop and apply new techniques and methods in order to improve source quantification/characterization. Generated data can then be used to direct regulatory measures towards the emitting sources that can be implemented in order to constrain the emissions.

Link to personal webpage


Nilsson Lovisa 

In my PhD project I look at interventions that support a multifunctional agricultural landscape and at stakeholders’ attitudes around ecosystem services and multifunctionality.
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Pirzamanbein Behnaz 

Environmental and climate processes occur over large space-time domains. Their complexity and the amount of available data make the modeling and analysis a challenging task. This calls for expertise of a statistician. The overall goal of my project is to improve models of vegetation/land-cover using statistical models and spatial statistics methods. This leads to better analysis of human impact, improvement of climate models and better prediction of future changes.
Link to personal webpage


Rath Kristin 

The aim of my PhD project is to gain insight into how soil salinization affects fungal and bacterial growth, as well as different microbial processes such as respiration, and what that means for the functioning of soils. I also want to find out how salinity shapes the carbon use efficiency of microbial communities. In addition I am interested to see if a history of salt exposure affects the response of the microbial community to soil salinity, by studying soils from natural salinity gradients.
Link to personal webpage


Soares Ana 

The overall objective of my PhD project is to improve the understanding of the terrestrial dissolved organic carbon (tDOC) reactivity in water systems. I am particularly interested in finding out how different catchment variables affect the quality and amount of tDOC that reaches the Baltic Sea coastal waters through river runoff.
Link to personal webpage


Sidemo Holm William 

Key words: Biodiversity, Ecosystem services, Agriculture, Cost-effectiveness, Landscape management, Financial incentives

In my PhD I study how farmland can be designed to benefit both agricultural production and biodiversity. I analyze different strategies of nature conservation and how to form policy instruments, such as taxes and subsidies, to promote land management that cost-effectively preserve biodiversity and ecosystem services. I particularly focus on situations where there are synergies or conflicts between different conservation goals. For instance, one type of land management may benefit threatened species and pollination services, another water purification and carbon sequestration. I.e. when is either kind of land management preferable?
Link to personal webpage


Tian Zhaomo 

Key words: climate change, carbon cycle, soil organic matter, soil minerals, interaction

Soil organic matter(SOM) is the organic component of soil, consisting of plant and animal residues, tissues and cells of soil organisms and other substances synthesized by soil organisms. Globally, soil organic matter stores more carbon (C) than is present in the terrestrial biomass and the atmosphere combined. SOM serves as the largest carbon sink through carbon sequestration and greenhouse gas emission and therefore plays an important role in global carbon cycle. Little is known, however, about the molecular processes that control the stability of SOM.

It is suggested that the stability of SOM is controlled by a range of environmental factors and one of the most important environmental factor is the interaction between SOM and soil minerals particles.
The overriding questions I will address are how SOM interacts with soil mineral particles and how this interaction regulates carbon cycle. Besides, the retention and release of soil nutrients and contaminants are affected by SOM-mineral interaction. Therefore my study will also help improve overall vegetation, land management, agricultural crop production and so on.

Link to personal webpage


Wittwer Torben 

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Yu Lin 

My main job is to simulate the behavior of an important nutrient—phosphorus, in the forest ecosystem. To be specific, I try to figure out how phosphorus transform and transport in trees and soils in forests. In order to do so, I use computers to develop and run mathematical model, which is a description of a system using mathematical concepts and language.
Link to personal webpage

 


Öström Emilie 

Keywords: Atmospheric particles, climate effects, modeling  

In my PhD-project I model how air-borne particles behave in the atmosphere. These atmospheric particles, as opposed to greenhouse gases, cool the climate here on Earth; partly because they send some of the incoming solar radiation back to space before it can reach the surface of the Earth and partly because they affect the formation of clouds. At the same time, atmospheric particles are also part of the air pollution problem. Our future climate will depend on how we decide to manage this air pollution problem together with other environmental problems. Global climate models are used to predict how the future could look like depending on decisions made today. To get better predictions, processes in these models are continuously being improved and added. My research focuses on processes concerning atmospheric particles, which are in great need to be improved in global climate models.

Link to personal webpage


 

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Sölvegatan 37
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Centre for Environmental and Climate Research, CEC

Sölvegatan 37
223 62 Lund, Sweden

Visiting address
The Ecology building, Sölvegatan 37, Lund