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Environmental Sciences

D-Index
45
Citations
9770
World Ranking
6309
National Ranking
94

Overview

Hannu Nykänen is affiliated with the University of Eastern Finland. Their research spans multiple fields, prominently Environmental Science and Earth and Planetary Sciences. Their work is also closely related to several subfields including Global and Planetary Change, Environmental Chemistry, Atmospheric Science, Ecology, and Oceanography.

The scientist's research topics cover Atmospheric and Environmental Gas Dynamics, Methane Hydrates and Related Phenomena, Climate Change and Permafrost, Marine and Coastal Ecosystems, Peatlands and Wetlands Ecology, Hydrocarbon Exploration and Reservoir Analysis, as well as Microbial Community Ecology and Physiology.

Some of their recent papers include the following:

  • Arctic soil methane sink increases with drier conditions and higher ecosystem respiration (2023, Nature Climate Change)
  • Vertical stratification patterns of methanotrophs and their genetic controllers in water columns of oxygen-stratified boreal lakes (2020, FEMS Microbiology Ecology)
  • Denitrification is the major nitrous acid production pathway in boreal agricultural soils (2021, Communications Earth & Environment)
  • Lowering water table reduces carbon sink strength and carbon stocks in northern peatlands (2022, Global Change Biology)
  • Lowered nutritional quality of prey decrease the growth and biomolecule content of rainbow trout fry (2022, Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology)

These publications appear in diverse venues, with frequent publication platforms including:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Nature Climate Change
  • FEMS Microbiology Ecology
  • Communications Earth & Environment
  • Global Change Biology

Nykänen collaborates regularly with several coauthors who have contributed to their research in different projects. Frequent coauthors include Taija Saarela, Alm Jukka, Martikainen Pertti, Jouko Silvola, and Carolina Voigt.

Best Publications

  • CO2 fluxes from peat in boreal mires under varying temperature and moisture conditions.

    Jouko Silvola;Jukka Alm;Urpo Ahlholm;Hannu Nykanen

  • A synthesis of methane emissions from 71 northern, temperate, and subtropical wetlands

    Merritt R. Turetsky;Agnieszka Kotowska;Jill Bubier;Nancy B. Dise

  • Factors controlling large scale variations in methane emissions from wetlands

    Torben R. Christensen;Anna Ekberg;Lena Ström;Mihail Mastepanov

  • Effect of a lowered water table on nitrous oxide fluxes from northern peatlands

    Pertti J. Martikainen;Hannu Nykänen;Patrick Crill;Jouko Silvola

  • CARBON BALANCE OF A BOREAL BOG DURING A YEAR WITH AN EXCEPTIONALLY DRY SUMMER

    Jukka Alm;Leif Schulman;Jari Walden;Hannu Nykänen

  • Emissions of CH4, N2O and CO2 from a virgin fen and a fen drained for grassland in Finland

    Hannu Nykanen;Jukka Alm;Kristiina Lang;Jouko Silvola

  • Winter CO2 CH4 and N2O fluxes on some natural and drained boreal peatlands

    Jukka Alm;Sanna Saarnio;Hannu Nykänen;Jouko Silvola

  • CO 2 flux determination by closed-chamber methods can be seriously biased by inappropriate application of linear regression

    L. Kutzbach;Judit Schneider;Torsten Sachs;M. Giebels

  • Methane fluxes on boreal peatlands of different fertility and the effect of long-term experimental lowering of the water table on flux rates

    Hannu Nykänen;Jukka Alm;Jouko Silvola;Kimmo Tolonen

  • Fluxes of nitrous oxide from boreal peatlands as affected by peatland type, water table level and nitrification capacity

    Kristiina Regina;Hannu Nykänen;Jouko Silvola;Pertti J. Martikainen

  • Reconstruction of the carbon balance for microsites in a boreal oligotrophic pine fen, Finland

    J. Alm;Alexander Talanov;Sanna Saarnio;Jouko Silvola

  • Change in fluxes of carbon dioxide, methane and nitrous oxide due to forest drainage of mire sites of different trophy

    Pertti J. Martikainen;Hannu Nykänen;Jukka Alm;Jouko Silvola

  • Fluxes of CH4, CO2, and N2O in hydroelectric reservoirs Lokka and Porttipahta in the northern boreal zone in Finland

    Jari T. Huttunen;Tero S. Väisänen;Seppo K. Hellsten;Mirja Heikkinen

  • Temperature and N fertilization effects on methane oxidation in a drained peatland soil

    P.M. Crill;P.J. Martikainen;H. Nyka̋nen;J. Silvola

  • Methane dynamics of a restored cut‐away peatland

    Eeva‐Stiina Tuittila;Veli‐Matti Komulainen;Harri Vasander;Hannu Nykänen

  • Seasonal variation in CH4 emissions and production and oxidation potentials at microsites on an oligotrophic pine fen.

    S. Saarnio;Jukka Alm;Jouko Silvola;Annalea Lohila

  • The role of Sphagnum mosses in the methane cycling of a boreal mire

    Tuula Larmola;Eeva-Stiina Tuittila;Marja Tiirola;Hannu Nykänen

  • The contribution of plant roots to CO2 fluxes from organic soils

    Jouko Silvola;J. Alm;U. Ahlholm;H. Nykänen

  • Temporal and seasonal changes in greenhouse gas emissions from a constructed wetland purifying peat mining runoff waters

    Anu Liikanen;Jari T. Huttunen;Satu Maaria Karjalainen;Kaisa Heikkinen

  • Effect of water-level drawdown on global climatic warming: northern peatlands

    Laine J;Silvola J;Tolonen K;Alm J

Frequent Co-Authors

Pertti J. Martikainen
Pertti J. Martikainen University of Eastern Finland
Jouko Silvola
Jouko Silvola University of Eastern Finland
Paula Kankaala
Paula Kankaala University of Eastern Finland
Sami J. Taipale
Sami J. Taipale University of Jyväskylä
Christina Biasi
Christina Biasi University of Innsbruck
Alexander Eiler
Alexander Eiler University of Oslo
Lauri Arvola
Lauri Arvola University of Helsinki
Eeva-Stiina Tuittila
Eeva-Stiina Tuittila University of Eastern Finland
Jukka Laine
Jukka Laine Natural Resources Institute Finland
Patrick M. Crill
Patrick M. Crill Stockholm University

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