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  • Mari Pihlatie 13.50 on 10.9.2018 Permalink | Reply  

    PhD position open in the group 

    We are looking for a student with background in plant physiology, plant biology, molecular biology or other relevant fields to bring light to our questions “why our trees emit or consume methane?” Please, apply and distribute the announcement to potential candidates. If you have any questions, please ask from us: mari.pihlatie(at)helsinki.fi or any group member 🙂

    https://www.helsinki.fi/en/open-positions/doctoral-student-memetre-project-faculty-of-agriculture-and-forestry

     
  • Nandita Rajan 20.21 on 6.8.2018 Permalink | Reply  

    Summer field measurements in Skogaryd 

     

    We are here in the Swedish forest (or skog, in Swedish) of Skogaryd (58°23’N, 12°09’E), around 15km from the town of Vänersborg in Southern Sweden. It is part of the Swedish Infrastructure for Ecosystem Science (SITES). The site is a hemiboreal forest on drained organic soil. More information can be found here: gvc.gu.se/english/research/skogaryd.

    This summer has been exceptionally warm and dry in Sweden, probably the warmest July recorded, with temperatures reaching 32°C. Due to the extended hot and dry weather conditions over the last couple of months, the Swedish government has forecast an extreme risk of wildfires across southern Sweden.

    As part of our measurements campaign of summer 2018, we have been measuring the greenhouse gas fluxes (CH4, N2O and CO2) from spruce trees – stems and shoots, as well as the soil during two measurement periods: end-May to mid-June and end-July up until the first week of August.

    Sampling for tree emissions is done using closed chamber technique for different tree profiles and soil chambers for the soil. We are currently using the laser and infrared based measurement devices UGGA (Ultraportable Greenhouse Gas Analyzer) and GASMET DX4040.

    We hope the results of these field measurements will give us some insight on the Methane dynamics from forest ecosystems under drought conditions.

     
  • Elisa Halmeenmäki 13.52 on 18.4.2018 Permalink | Reply  

    Upcoming seminar on Plants & CH4 exchange – our ERC-project kick-off event on May 3rd 

    Welcome to a seminar on Plants & CH4 exchange – our ERC-project kick-off.

    The main aim of MEMETRE project (headed by assoc. prof. Mari Pihlatie), is to raise the process-based understanding of CH4 exchange in boreal and temperate forests to the level where we can construct a sound process model for the soil-tree-atmosphere CH4 exchange.

    This seminar will focus on CH4 exchange and the role of plants, bringing the leading scientists of the topic to present their latest findings.

    Please register for the seminar by completing the registration form to ensure your cup of coffee! The seminar is supported by the DPPS and DENVI doctoral programmes.

    Time and Place: 3rd May 2018, Viikki Campus, Biocenter 2, lecture hall 2041

    Program

    09:00-09:30 Mari Pihlatie: Welcome and a short introduction: From processes to modelling of methane emissions from trees (MEMETRE)

    09:30-10:00 Frank Keppler: Methanogenesis 2018 – An update

    10:00-10:30 Katharina Lenhart: Terrestrial Vegetation as a Source of N2O to the Atmosphere

    10:30-10:50 Coffee & tea

    10:50-11:10 Raisa Mäkipää: Linkages between decomposing fungal community, asymbiotic nitrogen (N2) fixation and methane (CH4) in dead wood

    11:10-11:40 Sunitha Pangala: The role of wetland-adapted trees in mediating methane emissions forested wetlands

    11:40-12:10 Vincent Gauci: Upland forest methane dynamics spanning broad latitudinal gradients

    12:10-12:30 Tuula Aalto: Modelling the global methane budget

    Speakers:

    • Assoc. Prof. Mari Pihlatie, Environmental Soil Science, Department of Agricultural Sciences, Institute for Atmospheric and Earth System Research / Forest Sciences, University of Helsinki, Finland
    • Prof. Frank Keppler, Institute of Earth Sciences, University of Heidelberg, Germany
    • Prof. Katharina Lenhart, Technische Hochschule Bingen – University of Applied Sciences, Germany
    • Res. Prof. Raisa Mäkipää, Natural Resources Institute Finland, Finland
    • Royal Society Dorothy Hodgkin Research Fellow Sunitha Pangala, Lancaster Environment Centre, Lancaster University, United Kingdom
    • Prof. Vincent Gauci, School of Environment, Earth & Ecosystem Sciences, Faculty of Science, Technology, Engineering & Mathematics, The Open University, United Kingdom
    • Senior Research Scientist Tuula Aalto, Climate system research, Finnish Meteorological Institute, Finland
     
  • Homa Ghasemi 22.40 on 13.4.2018 Permalink | Reply  

    Our Group On The Road! 

    In the follow-up to our writing club, we decided to leave our offices and experience new challenges. thus we headed towards the North and the subarctic Värriö research station of the University of Helsinki.[1]

     


     

    The journey was crowned with skiing 8 km or taking a snowmobile ride to the station, which is located only some seven kilometers from the Russian border. As soon as we arrived at Värriö, the sunny weather and kind hosts promised us a really pleasant and progressive stay in the middle of inspiring northern nature. The weather was great throughout the visit, and the snowy scenery with snow-crowned trees and almost absolute silence was stunningly beautiful.

     

    During our time at the research station the group successfully managed to make progress in some of the ongoing manuscripts, PhD and Master’s theses, and data analysis. We also visited the SMEAR I station, made plans for future research activities there, and had time to discover the stunning surrounding nature and wildlife, take hundreds of photos from reindeer, Siberian jays and capercaillies, relax in sauna and take many dips to the hole in the ice (avanto in Finnish), and play some card games .

     

    Even though this trip was short, we all feel more relaxed and refreshed after four days of working in a different atmosphere. We absolutely recommend visiting the Värriö station and we are planning to go again next year – for a stay at least one day longer.

     

     

     
  • Homa Ghasemi 13.59 on 21.2.2018 Permalink | Reply  

    Spring is coming! 

    Following the series of our laboratory experiments, we prepared tree seedlings for springtime in one cold day of November. We selected the plant chambers of the University of Helsinki, located in Viikki campus, for this study.

     

    Four different 3-years-old species including “Scot pine”, “Norwegian Spruces”,” European Larch” and “downy Birches” will be used to monitor the drivers of leaf-level CH4 emissions. In addition, the Methane flux of shoots and root-soil compartments will be measured by using the different levels of UV-radiation treatments over the seedlings. Also applying different Carbon isotope treatment over the divided groups of the seedling is part of next step of this experiment, after CH4 flux measurements

     

    Now, our seedlings and we are waiting for spring and an exciting break through.

    Stay tuned for more….

     
  • Mari Pihlatie 16.22 on 16.1.2018 Permalink | Reply  

    Get inspired and join my team! 

    We are in front of an exciting new phenomena, methane and nitrous oxide emissions from trees, and we will conduct state-of-the-art measurements in different forest of the world, we will reveal the processes, and construct a process model to answer the big question: what is the role of trees in methane and nitrous oxide balance. Join us!

     
  • Mari Pihlatie 16.07 on 16.1.2018 Permalink | Reply  

    Open position 3: Doctoral student 

    University of Helsinki is recruiting a doctoral student to work in European Research Council (ERC) and Helsinki Institute of Life Science (HiLIFE) funded project MEMETRE (From processes to modelling of methane emissions from trees). The postdoctoral researcher will join a multidisciplinary group of 10 scientists studying the exchange of greenhouse gases methane (CH4) and nitrous oxide (N2O) in forest ecosystems, with the main aim at answering the question: what is the role of trees in the CH4 and N2O exchange of forests.

    The main aim of MEMETRE is to raise the process-based understanding of CH4 exchange in forests to the level where we can construct a process model for the soil-tree-atmosphere CH4 exchange. We will achieve this by novel laboratory and field experiment focusing on newly identified processes, quantifying CH4 fluxes, seasonal and daily variability and drivers of CH4 at leaf-level, tree and ecosystem level. The project will narrow down the high uncertainties in boreal and temperate forests for their contribution to the global CH4 budget.

    Do you want to be part of our dream team? Tasks for the PhD student will be 1) to conduct state-of-the-art laboratory and field experiments on CH4 exchange of trees, utilizing stable and radiocarbon isotopes and molecular biology techniques, 2) to analyze data, report and present scientific findings, and 3) to actively participate in interdisciplinary group work to guarantee direct interplay between the experimental work and modelling.

    We are seeking a highly motivated student with background in ecophysiology, plant biology, forest ecology, biogeochemistry, molecular biology, soil science, or other relevant fields. Interest towards a scientific career, work experience in research projects, basic programming skills and an interest towards learning new data analysis tools are assets.

    The doctoral student has the possibilities to conduct the Ph.D. studies at one of the University of Helsinki in the Doctoral Programmes: Atmospheric Sciences (https://www.helsinki.fi/en/research/doctoral-education/doctoral-schools-and-programmes/doctoral-school-in-natural-sciences/doctoral-programme-in-atmospheric-sciences), Interdisciplinary Environmental Sciences https://www.helsinki.fi/en/research/doctoral-programme-in-interdisciplinary-environmental-sciences, or Sustainable Use of Renewable Natural Resources (https://www.helsinki.fi/en/research/doctoral-programme-in-sustainable-use-of-renewable-natural-resources).

    This project is a collaborative project with the research groups of Prof. Jaana Bäck, https://www.helsinki.fi/en/researchgroups/ecosystem-processes and is affiliated to the Institute for Atmospheric and Earth System Research (INAR). We offer an internationally competitive package and access to state-of-the-art infrastructures (such as ICOS, Integrated Carbon Observation System, https://www.icos-ri.eu/).

    To apply: send your motivation letter, CV, publication list, and a minimum of two references (in one pdf-file) to Mari Pihlatie (mari.pihlatie@helsinki.fi) by 15 February 2018. The position can be filled in March 2018, or as soon as suitable for the candidates.

    For additional information, please contact Associate Professor Mari Pihlatie, mari.pihlatie@helsinki.fi

     
  • Mari Pihlatie 15.58 on 16.1.2018 Permalink | Reply  

    Open position 2: Postdoctoral researcher MEASUREMENTS 

    University of Helsinki is recruiting a postdoctoral researcher to work in European Research Council (ERC) and Helsinki Institute of Life Science (HiLIFE) funded project MEMETRE (From processes to modelling of methane emissions from trees). The postdoctoral researcher will join a multidisciplinary group of 10 scientists studying the exchange of greenhouse gases methane (CH4) and nitrous oxide (N2O) in forest ecosystems, with the main aim at answering the question: what is the role of trees in the CH4 and N2O exchange of forests.

    The main aim of MEMETRE is to raise the process-based understanding of CH4 exchange in forests to the level where we can construct a process model for the soil-tree-atmosphere CH4 exchange. We will achieve this by novel laboratory and field experiment focusing on newly identified processes, quantifying CH4 fluxes, seasonal and daily variability and drivers of CH4 at leaf-level, tree and ecosystem level. The project will narrow down the high uncertainties in boreal and temperate forests for their contribution to the global CH4 budget.

    Do you want to be part of our dream team? Tasks of the postdoctoral researcher will be 1) to plan and participate state-of-the-art laboratory and field experiments on CH4 exchange of trees, utilizing stable and radiocarbon isotopes and molecular biology techniques, 2) to analyze data, report and present scientific findings, and 3) to take an active role in group work and supervision of students to guarantee direct interplay between the experimental work and modelling.

    We are seeking a highly motivated researcher with a recent Ph.D. in the subject area in ecophysiology, plant biology, forest ecology, biogeochemistry, soil science, or other relevant fields. Experience in supervising MSc and/or PhD students, an excellent publication record, ability to work independently as part of a multidisciplinary research group are essential. Programming skills and an interest towards learning new data analysis tools are assets.

    This project is a collaborative project with the research groups of Prof. Jaana Bäck, https://www.helsinki.fi/en/researchgroups/ecosystem-processes and is affiliated to the Institute for Atmospheric and Earth System Research (INAR). We offer an internationally competitive package and access to state-of-the-art infrastructures (such as ICOS, Integrated Carbon Observation System, https://www.icos-ri.eu/).

    To apply: send your motivation letter, CV, publication list, and a minimum of two references (in one pdf-file) to Mari Pihlatie (mari.pihlatie@helsinki.fi) by 15 February 2018. The position can be filled in March 2018, or as soon as suitable for the candidate.

    For additional information, please contact Associate Professor Mari Pihlatie, mari.pihlatie@helsinki.fi

     
  • Mari Pihlatie 11.37 on 22.12.2017 Permalink | Reply  

    Open position 1: Postdoctoral researcher MODELLING 

    Feel free to distribute to potential candidates 🙂

     

    University of Helsinki is recruiting a postdoctoral researcher to work in European Research Council (ERC) and Helsinki Institute of Life Science (HiLIFE) funded project MEMETRE (From processes to modelling of methane emissions from trees). The postdoctoral researcher will join a multidisciplinary group of 10 scientists studying the exchange of greenhouse gases methane (CH4) and nitrous oxide (N2O) in forest ecosystems, with the main aim at answering the question: what is the role of trees in the CH4 and N2O exchange of forests.

     

    The main aim is to develop biogeochemical models so that the processes of CH4 exchange in the soil, and between the soil, trees and the atmosphere can be described. The main tasks of the postdoctoral researcher will be 1) to mathematically describe CH4 transport, production and consumption processes in trees, 2) to incorporate the developed tree-modules into process-based biogeochemical models for soil-tree-atmosphere gas exchange, 3) to participate in experimental work to guarantee direct interplay between the experimental and model development, and 4) to supervise PhD and MSc students working with process-based models. The modelling work will be conducted in close collaboration with research groups at the University of Helsinki, Department of Forest Sciences and at the Natural Resources Institute Finland (LUKE).

     

    We are seeking a highly motivated researcher with background in physics, ecophysiology, biogeochemistry, ecohydrology as well as experience in supervising MSc and/or PhD students. Excellent publication record, ability to work independently as part of a multidisciplinary research group consisting of biogeochemists, physicists, meteorologists, forest ecologists and microbiologists are essential. Good programming skills, ability to rapidly understand and interest to develop process-model algorithms (e.g., Python, FORTRAN, C, Matlab) are required. Basic knowledge on energy, water and carbon cycles in terrestrial ecosystems are needed.

    The ideal candidate has a recent Ph.D. in the subject area. In a case of an exceptional candidate, the vacancy can also be filled as a post-graduate position and a possibility to conduct the Ph.D. studies at the University of Helsinki in the Doctoral Programme of Atmospheric Sciences (https://www.helsinki.fi/en/research/doctoral-education/doctoral-schools-and-programmes/doctoral-school-in-natural-sciences/doctoral-programme-in-atmospheric-sciences )

     

    This project is a collaborative project with the research groups of Prof. Jaana Bäck, https://www.helsinki.fi/en/researchgroups/ecosystem-processes and will be affiliated to the Institute for Atmospheric and Earth System Research (INAR), to be established in 1 January 2018. We offer an internationally competitive package and access to state-of-the-art infrastructures (such as ICOS, Integrated Carbon Observation System, https://www.icos-ri.eu/).

    To apply: send your motivation letter, CV, publication list, and a minimum of two references (in one pdf-file) to Mari Pihlatie (mari.pihlatie@helsinki.fi) by 31 January 2018. The position can be filled in March 2018, or as soon as suitable for the candidate, for 3-years (with possibility for extension).

    For additional information, please contact Associate Professor Mari Pihlatie, mari.pihlatie@helsinki.fi

     
  • Mari Pihlatie 14.10 on 21.12.2017 Permalink | Reply  

    INAR (Institute for Atmospheric and Earth System Research) 

    From 1.1.2018 onwards we are part of the INAR = Institute for Atmospheric and Earth System Research)

    So we will use this double affiliation:

    Environmental Soil Science, Department of Agricultural Sciences
    Faculty of Agriculture and Forestry, University of Helsinki, Finland

    Institute for Atmospheric and Earth System Research / Forest Sciences
    Faculty of Agriculture and Forestry, University of Helsinki, Finland

    short version of affiliations:
    Environmental Soil Science, Department of Agricultural Sciences
    University of Helsinki, Finland

    Institute for Atmospheric and Earth System Research / Forest Sciences
    University of Helsinki, Finland

    To not complicate but make it more flexible, we are also free to use the INAR affiliation with whatever suitable field of research. I would recommend using Institute for Atmospheric and Earth System Research / Forest Sciences when presenting work related to forests, and Institute for Atmospheric and Earth System Research / Agricultural Sciences when relevant 🙂

     

     
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