Very welcome to participate in the conference actively with a presentation! Presentations will be held in English. The abstract must be written in English and have maximum 300 words in addition to a title of maximum 150 characters. At abstract submission, you may choose your presentation type preference (oral presentation or poster) and session or general. The decision on the abstract acceptance and its presentation type will be done by the session conveners and we will communicate the decisions by 13th July 2018.
Poster sessions will include a one minute presentation of your poster, followed by poster session mingle and discussions.
Talks will be given a timeframe of 15 minutes plus 5 minutes questions, keynotes have 25 +5 minutes. Questions can also be brought up at the final panel discussion.
Chairs: Professor Håkan Wallander and Professor Kristina Stenström
This session welcomes contributions on studies of today´s carbon cycle, regarding e.g. exchange of greenhouse gases with the terrestrial surface, ocean and ecosystems, and characterization and climate effects of carbonaceous aerosols.
The understanding of today’s carbon cycle is of utmost importance for society to be able to take measures towards a sustainable development with reduced anthropogenic influence on the climate. The interactions between terrestrial ecosystems and the climate system, as well as the influence of atmospheric carbonaceous aerosols on the surface energy budget of Earth, are two central questions in research of present climate change.
Boreal and sub-arctic ecosystems are dominated by forests and wetlands and play a key role in exchanges of carbon dioxide and methane both at regional and global scale. Carbon stored in these ecosystems could be mobilized in response to rising temperatures but it is also possible that the rise in temperature will increase productivity and carbon uptake. A better understanding of these processes, and their response to expected changes in climate, will be of fundamental importance in developing future climate and ecosystem models.
Carbonaceous atmospheric aerosols mainly originate from 3 sources: fossil fuel combustion, biomass burning and biogenic sources. Limited emissions of anthropogenic aerosols can lead either to a warming or a cooling effect on the climate depending on the type of emissions: some types of aerosols have a cooling effect while others are believed to heat the climate. Today there is still a significant knowledge gap of the magnitudes of these counteracting climate effects.
Chairs: Professor Lena Ström and Professor Torben Christensen
This session welcomes contributions from a range of disciplines and across different spatial and temporal scales, including studies based on experimental data, proxy records, remote sensing and model simulations. Focussing mainly on a better understanding of the biogeochemical cycle and carbon balance of northern ecosystems, particularly in the permafrost region discussions will be focused towards the implications these processes have for sustainable global development in particular as this relates to climate change.
Over the past decades dramatic changes have been observed in northern permafrost affected peatland regions and in related ecosystem processes such as atmospheric exchanges of CO2 and CH4. The has lead to societal concern and amongst many international initiatives to elucidate the matter the United Nations Framework Convention on Climate Change (UNFCCC) recognizes the importance for sustainable global development, of a continued northern soil storage function of atmospheric carbon. Wetlands comprise one of the largest sinks for atmospheric CO2 globally and about 280 Pg of C is stored as peat in the northern permafrost region alone. Wetlands are also the most important natural source of CH4 to the atmosphere. Consequently, any changes to Earth’s ecosystems that affects the C storage function and/or increase CH4 emissions can have dramatic effects and feedback to global climate. Furthermore, various feedback mechanisms can be assumed to operate at different spatial and temporal scales within this complex system.
Chairs: Professor Helena Filipsson and Professor Raimund Muscheler
This session welcomes all contributions from studies covering climate change during the Quaternary period. Studies may include: Solar and volcanic forcing of climate change, carbon cycle feedbacks to climate change, feedback effects in the climate system, studies on tipping points during the Quaternary, natural vegetation and land-use changes and effects on the climate system, marine responses and feedbacks to climate change and reconstructions and linkages of and between marine and atmospheric circulation patterns.
The Quaternary Period is characterized by dramatic changes in climate strongly linked to atmospheric CO2 levels. It covers ice ages and warm periods including the most recent period we live in, the Holocene. Studying the cause and effects of climate changes during the Quaternary and the couplings to the carbon cycle allows us to better understand feedback processes in the climate system and to more reliably predict future changes.
Chairs: Professor Vivi Vajda and Professor Birger Schmitz
This session welcomes all contributions from studies covering climate and carbon cycle changes, major biodiversity changes from the Earth´s ancient history, and climate proxies applicable to deep-time (>1 Ma). Presentations concerning Paleozoic, Mesozoic and Cenozoic climate and carbon cycles, mass extinction events and new and traditional proxies used for deep time research, are welcome.
Climate is one of the factors that determines the habitat for different groups of animals and plants, and climate changes (direct or indirect) are, in several cases, linked to major mass extinction events. Studies of ancient ecosystems allow us to target the causes and patterns of major global environmental perturbations during the history of Earth. They also allow us to examine the relationships between changes in the carbon cycle and climate as these changes are preserved in the rock record. Investigations of forcing and feedback mechanisms of the global carbon cycles are approached by multidisciplinary and integrated methods. These include micropaleontology covering terrestrial (pollen spores) to deep oceanic (plankton) systems, macro flora and fauna, combined with geochemistry, stomatal density analyses and several other proxies, which help to elucidate climatic changes over geological time scales.
Modelling of present and future ecosystem processes with a background of Holocene and pre-Holocene scenarios and data
Chairs: Professor Benjamin Smith and Dr Chiara Molinari
This session welcomes contributions highlighting the use of modelling, stand-alone or in combination with observational or proxy data, to study the individual and joint role of climate, land-use, disturbances (e.g. wildfire) and related drivers on the structure, composition and biogeochemical dynamics of land ecosystems and their role in carbon cycle and climate dynamics, across spatial and temporal scales.
The characterization of the role of climate and land use for terrestrial carbon balance and land-atmosphere feedbacks is complex. Process-based ecosystem models and coupled ecosystem-atmosphere (Earth system) models attempt to account for such complexity and explore implications, but much remains to be learnt about the multitude of processes and feedback mechanisms that control the carbon cycle and its interactions with the climate system. An understanding of these processes is crucial for implementing realistic and cost-effective mitigation actions.
In order to better project future environmental changes and be prepared for those changes, we may study, and learn from, the past. Palaeo-ecological research can offer an important reference for ecosystem-based strategies aimed at maintaining ecological processes, habitats and species. A systematic understanding of the processes behind the variability observed in palaeo-records could help inform the management of ecosystems in the face of ongoing global and regional environmental change.