Chair: Janne-Markus Rintala

Biodiversity is currently declining at alarming rates. This encompasses all aspects of biodiversity, from the level of genetic diversity to species, functional diversity and ecosystems. Biodiversity underpins many ecosystem functions and services that society relies upon (including provisional services, regulating services and cultural services).  While changes in abiotic drivers affect biodiversity, species also shape ecosystems by modifying their abiotic environment, redistributing resources (energy and matter) and modifying species interactions. Hence, species underpin essential ecosystem functions, and thus, where such functions are exploited by human society, ecosystem services. Crucial in this respect is the need to maintain or even enhance ecosystem resilience. 

 

Thematic talk:

Laura Kauppi (UH): What can nearly 100 years of benthic sampling tell us about ecosystem functioning?

 

Other presentations:

Alf Norkko (UH): The next step in coastal biodiversity and climate change research

Janne-Markus Rintala (ICOS ERIC & UH): Taxonomically and functionally distinct ciliate assemblages inhabiting sea ice

Veera Norros (SYKE): Exploring the link between functional diversity and ecosystem functioning: do traits explain spatiotemporal variation in plankton growth dynamics?

Maria Väisänen (UO): Soil microclimatic and plant responses to shifting snow and grazing across boreal habitats

Noora Kantola (UO): Boreal forest floor CO2 flux responses to divergent reindeer grazing regimes and altered winter snow depth

Anu Akujärvi (SYKE): The role of boreal old-growth forests in carbon sequestration – an empirical study

Maija Salemaa (Luke): Importance of N2 fixation of bryophyte-cyanobacteria associations to boreal forest nitrogen-budget in changing climate

Merja Elo (JyU): National Peatland Restoration Monitoring Network – towards effective restoration

 

Chair: Lukas Kohl

There is growing international interest in better managing soils to enhance terrestrial carbon uptake and to increase soil organic carbon content to contribute to climate change mitigation. This theme focuses on methods and management options which could enhance C sequestration into terrestrial ecosystems. We also ask, what are the key areas and methods to reduce soil/ecosystem carbon losses. Along with C uptake it is important to assess other, possibly adverse climate impacts related to e.g. albedo change, other GHG’s or evapotranspiration. Furthermore, since soil organic carbon content cannot be easily measured, a key barrier to implementing programmes to increase soil organic carbon at large scale, is the need for credible and reliable measurement/monitoring, reporting and verification (MRV) platforms, both for national reporting and for emissions trading. We invite presentations broadly tied around the topic - both experimental and modelling contributions are welcome. 

 

Thematic talk:

Katri Himanen (Luke): Does tree breeding change the dry mass allocation between the shoot and the root system in Pinus sylvestris?

Other presentations:

Toprak Aslan (UH): Quantifying the effect of thinning on carbon and water cycles in a managed boreal forest

Kukka-Maaria Kohonen (UH): Carbonyl sulfide as a proxy for photosynthesis

Anna Lintunen (UH): Water loss through tree bark should not be neglected in estimation of forest evapotranspiration in dry conditions

Olli-Pekka Siira (UH): Greenhouse Gas Emissions from Agricultural Organic Soils of Boreal and Temperate Zones

Maarit Liimatainen (Luke): Environmental impacts of cultivated peatland on an acid sulphate soil

Saara Lind (Luke): GHG mitigation potential of agricultural management practises on mineral and organic soils

Xuefei Li (UH): Modelling the management effects on CO2 and CH4 fluxes from peatland forest by the JSBACH-HIMMELI model

Hem Raj Bhattarai (Luke): Understanding the Ecosystem Sink of Nitrous Oxide (ENSINK)

Liisa Kulmala (FMI): Solving biogenic carbon cycle in urban environments

Johanna Riikonen (Luke): New climate change research platform in Luke Suonenjoki

Chair: Tuula Aalto

Understanding ecosystem schemes on a large scale is important as climate change is a global phenomenon. Modelling is an essential part when integrating different measurements and inferring information brought by the measurements to regional and global scales, as well as estimating and predicting at various temporal dimensions. This theme focuses on modelling approaches which use various local scale measurements in estimation of ecosystem processes, carbon fluxes, atmospheric and hydrological transports. We invite presentations widely related to the topic, such as those using process-based, upscaling, statistical and inversion methods, to discuss the use of the measurements in modelling and model developments, and the techniques of synthesising those data.

 

Thematic talk:

Martin Forsius (SYKE): Spatially explicit modelling of combined biodiversity and carbon benefits

Other presentations:

Man Hu (UH): Using a process-based model to predict multi-layered forest growth, mortality, and regeneration

Tapani Repo (Luke): Tree root turnover rates are affected by soil conditions

Vicent Agustí Ribas Costa (UH): Design and validation of a new technique for estimating canopy parameters: UAS-based spherical (360°) photography describing the forest canopy from inside

Manqing Tian (UH): The interactions of non-structural carbohydrates, nitrogen, and water status with leaf gas exchange and phenology of silver birch (Betula pendula Roth.)

Jari-Pekka Nousu (UO): Using SAR-based spatiotemporal estimates of soil moisture to calibrate a spatially distributed hydrological model

Tuula Aalto (FMI): Temperature and precipitation responses of modelled wetland methane emissions in Fennoscandia

Aki Tsuruta (FMI): Application of ground-based atmospheric CH4 data for estimation of global and regional CH 4 fluxes based on atmospheric inversion

Vilma Kangasaho (FMI): Modelling seasonal cycle of atmospheric δ13C-CH4 and their evaluations with δ13C-CH4 observations

Maria Tenkanen (FMI): Northern High Latitudes Methane Emissions: Cold Season And Permafrost

Laurel Larsen (UEF): Dominant drivers of CH4 and CO2 emissions over multiple timescales in a bog-fen comparison

Lukas Kohl (UH): Constraining the belowground methane cycle in peatlands with dual isotope analysis

 

Chair: Katri Rankinen

Lateral land‐to‐water transport of elements plays an important role in the biogeochemistry of terrestrial and aquatic ecosystems. Fluxes across physical boundaries change the element concentrations in adjacent environments on different spatial scales. This theme will focus on the mechanisms that control the variation, magnitude and speciation of elements being transported across ecosystems, habitats or zones. The theme is inclusive to the emergent approaches and methodologies that highlight how global change may perturb these fluxes, and identify major knowledge gaps and key avenues for future research.

 

Thematic talk:

Kaisa-Riikka Mustonen (UO): Understanding interacting dynamics of hydrology, carbon cycle and greenhouse gas fluxes in Arctic watersheds

Other presentations:

Joonatan Ala-Könni (UH): Methane flux measurements by EC on lake Pallasjärvi during ice-off

Maria Holmberg (SYKE): On the role of aquatic ecosystems in the greenhouse gas balance of a region

Xin Zhuang (UH): Using 13C isotope tracer to study how sink limitation affects Betula pendula sugar translocation

Celine Arzel (UTu): Decline of aquatic macro invertebrates as a consequence of water browning

Clarisse Blanchet (UTu): Identifying factors driving water browning of lakes in a Finnish forest landscape

Katri Rankinen (SYKE): Modelling of long term brownification process in Southern Finland

Perttu Virkajärvi (Luke): From landscape to field scale and lab level with new water research infrastructure at Luke Kuopio Maaninka research station