Albert Porcar-Castell
The optical signals of photosynthesis and their link to leaf, plant and ecosystem processes
- +358 (0)2 941 58155
- joan.porcar [at] helsinki.fi
- Viikki, B building room 312
- ORCID:
- More information in research database TUHAT, and the page of Optics of Photosynthesis Lab
Anna Lintunen
Transport processes, freezing, embolism
My research is on tree structure and function, especially on transport processes within the tree and on the challenges these processes face in different environments. My special interest is on freezing behavior of wood.
- +358 40 7510 341
- Viikki, B building room 321
- ORCID: 0000-0002-1077-0784
- More information in research database TUHAT
Ecosystem ecology, physical limnology
- +358 (0)294120340
-
Lahti, Niemenkatu 73, room 150
- ORCID:
- More information in research database TUHAT
Anu Riikonen
Urban trees, soils and ecosystems, and urban ecosystem services.
- +35850 3175 325
- Viikki, B building room 530
- ORCID: 0000-0002-5762-6173
- More information in research database TUHAT
Beñat Olascoaga
Photosynthesis, gas exchanges, remote sensing
My background is on plant physiology and light, and my research has been focused on characterising temporal dynamics in biochemical and biophysical mechanisms in leaves of boreal trees that uncouple remotely sensed data from photosynthetic gas exchange.
- ORCID: 0000-0002-1976-1040
- More information in research database TUHAT, and the Optics of Photosynthesis Lab page
Ditte Taipale
Atmosphere-biosphere interactions, planetary boundary layer oxidation processes, emissions of biogenic volatile organic compounds, boreal ecosystem
My main research topic is to investigate the drivers of both induced and constitutive production and emission of biogenic volatile organic compounds from trees and forest floor and how these emissions influence the chemical composition of the atmosphere. It is very important to study these aspects, since biogenic volatile organic compounds influence atmospheric aerosol formation and growth in forested areas and thus contribute to climate change
- +358-503185704
- Hyytiälä forestry field station, Hyytiäläntie 124, 35500 Korkeakoski, Finland
- ORCID: 0000-0002-2023-2461
- More information in research database TUHAT
Phytoplankton ecology and nutrient, biomolecule and gas cycling
My research interests are in the microscopical-sized life forms of lakes, especially in phytoplankton, and their roles in aquatic food webs. Particularly I’m interested in mixotrophy, grazing and exudate release (e.g. volatile organic compounds, BVOC’s) which are closely related to nutrient, biomolecule and gas cycling. My previous research topics have included studies on phytoplankton community composition and primary production as well as using phytoplankton as a potential source of oil for biodiesel production.
- +358 50 448 6649
- Viikki, B building
- ORCID: 0000-0002-2858-8358
- More information in research database TUHAT
Frank Berninger
- +358 (0)50 3185 121
- Viikki, B building room 515
- ORCID:
- More information in research database TUHAT and on the Disturbances and Biogeochemistry group and Forest Modelling group websites
Janne Levula
Soil type properties, forest regeneration
I try in my project (Forest soil classification for forest regeneration) to find such variables are of major importance in the planning of forest regeneration. The most interesting properties are water and oxygen concentrations in soil profile since the Site Type classification quite well describes the chemical properties (e.g. fertility) and the most promising variables are the soil type properties (e.g. the colours of the mineral soil horizons and soil type).
- +358 (0)2 941 20761
- Hyytiälä Forestry field station, Hyytiäläntie 124, FIN- 35500 Korkeakoski, Finland
- ORCID:
- More information in research database TUHAT
Jon Atherton
Passive remote sensing, modeling, vegetation dynamics, spectroscopy, photosynthesis, wildfires
Developing a model that will help to interpret passive remote sensing signals of forests. The relationship between remote sensing signals and photosynthetic efficiency is complicated and non-linear. Mechanistic models can help to explain the underlying physiological and physical causes of remote sensing observations and provide a robust platform for the use of such signals in estimating carbon fixation rates.
- +358 294158149
- Viikki, B building room 313 ?
- ORCID:
- More information in research database TUHAT and the page of Optics of Photosynthesis laboratory
Juho Aalto
Gas exchange, BVOCs, tree growth, measurement methodology, technical development, boreal forests
Long term measurements of tree and forest floor gas exchange, including VOCs, using online measurement methods. Understanding the dynamics, dependency on environmental controls of gas exchange, especially VOCs.
- +358 50 415 6759
- SMEAR II, Hyytiälä forestry field station, Hyytiäläntie 124, 35500 Korkeakoski, Finland
- ORCID: 0000-0002-5686-1366
- More information in research database TUHAT
Jussi Heinonsalo
Forest soil, carbon cycling, ectomychorrhizal fungi
My major research interest is carbon cycling in forest soil and the role of ectomycorrhizal fungi in belowground carbon dynamics. In addition, I am interested in the enzymes as well as other metabolites (VOC-compounds, bioactive compounds) produced by fungi. My earlier projects include studies on fungal bioremediation and biodiversity.
- +358 (0)2 941 59318
- Viikki, Biocenter I, Department of Food and Environmental Sciences, Division of Microbiology, room 3212
- ORCID: 0000-0001-8516-1388
- More information in research database TUHAT and Nitrofungi and Pyrofungi project page
Kajar Köster
Carbon dynamics in forest soils, with special interest in disturbed (fire, wind, reindeer grazing, etc.) areas
My current projects include measuring the short and long term effects of forest fires on the stability of carbon pools in boreal forests, estimating carbon turnover on disturbed forest areas and studying the carbon neutrality of reindeer management.
- Viikki, B building room 527
- ORCID: 0000-0003-1988-5788
- More information in research database TUHAT and the web page of the Disturbances and Biogeochemistry group
Liisa Kulmala
Carbon cycle in northern forests
Nowadays, my main focus is in the carbon below ground i.e. in soil carbon and tree roots but I also have a special interest also in photosynthesis and in tree growth.
- Kumpula, Finnish Meteorological Institute / Viikki, B building room 312
- ORCID: 0000-0003-1775-8240
- More information in research database TUHAT
Gas-phase nitrogen exchange, methane emissions, wetlands
Exchange of reactive gas-phase nitrogen compounds between atmosphere and vegetation and global modelling of methane emissions from wetlands.
- +358 (0)2 941 51658
- Kumpula, Dynamicum room D113
- ORCID:
- More information in research database TUHAT
- +358 (0)294158122
- Viikki, B building room 439
- ORCID:
- More information in research database TUHAT and the Disturbances and Biogeochemistry group page
Marjut Kaukolehto
Research infrastructures: Global SMEAR, SMEAR concept, eLTER, ACTRIS
- +358 50 4154756
- Kumpula, Physicum D219F / Viikki, B-building 328
- ORCID: 0000-0001-7225-7735
- More information in research database TUHAT, and LinkedIN
Methane exchange processes, peatlands, soil gas exchange
- +358 50 448608 / 0294158136
- ORCID: 0000-0002-9473-6064
- More information in research database TUHAT and the webpage of Methane exchange group
Nuria Altimir
Terrestrial ecology, biogeochemistry of air-land interactions, ozone deposition, ozone scavenging
I have studied primarily ozone deposition to vegetation and the mechanisms behind the process and currently I am interested in the potential role of BVOCs and aerosol load in ozone scavenging. I am also involved in research on C and N cycling in high-mountain pastures in the Pyrenees, studying the role of plant diversity
- More information in personal web page
Pasi Kolari
Data management, greenhouse gas fluxes
- +358 (0)294158130
- Kumpula, Exactum D115
- ORCID: 0000-0001-7271-633X
- More information in research database TUHAT, Forest Modeling Group page and Micrometeorology group page
Pauliina Schiestl-Aalto
Tree growth, carbon balance, carbon sink – source interactions
- +358 40 8392483
- piia.schiestl [at] helsinki.fi
- Hyytiälä forestry field station, Hyytiäläntie 124, 35500 Korkeakoski, Finland
- ORCID: 0000-0003-1369-1923
- More information in research database TUHAT and Forest Modelling Group page
Climate change, Ecosystem services, Ecosystem water-balance, Plant-water relations, Tree growth
- +358 504489485
- ashraful.alam [at] helsinki.fi
- Kumpula, Physicum
- ORCID:
- More information in research database TUHAT
Terhi Rasilo
Carbon cycling, interactions between ecosystems
Environmental research infrastructures
My research interests are in carbon cycling in different ecosystem and especially between them. After finishing a postdoc related to CO2 and CH4 emissions from lakes and small rivers in Canada, I'm back at the department of Forest Sciences. Now I'm working more to create conditions for research than with research itself. I am involved in the long-term ecosystem research infrastructures both at national (FinLTSER, INAR RI Ecosystems) and at international (eLTER) level.
- +358-3178293
- Viikki, B building room 326
- ORCID: 0000-0002-3502-4040
Tommy Chan
Tree ecophysiology, growth dynamics, climate change, phenology
- +358 (0)44 997 9531
- Viikki, B building
- ORCID:
- More information in research database TUHAT
Energy exchange, dissolved organic carbon, DOC production, boreal forest
I am interested in how phenology affects the processes related to energy exchange and how ecosystems differ in this respect.
In addition I model the production of DOC (Dissolved Organic Carbon) and its transport into stream water in a boreal forest. In developing the model, I use data collected from intensively researched catchments in Finland and Sweden. I am also interested in the biogeochemical processes linked to the DOC cycle and have done reserach on the role of photochemistry in the breakdown of DOC transported by big rivers.
- More information in research database TUHAT, and Environmental Photochemistry Group page (Big River project)
- +358 (0)294150717
- Viikki, B building room 311
- ORCID: 0000-0003-4433-4021
- More information in research database TUHAT