I am coordinator in research community UEF Water. My previous work was connected to GHG studies and to processes regulating organic matter degradation and carbon and nitrogen flows in natural and experimental systems. This continues partly als..
My work has been related to emissions of methane, carbon dioxide and nitrous oxide and to processes regulating emissions. Method development related to gas measurement and stable isotope methods (C & N) is also related to my work.
I started in the biogeochemistry research group (now BGC) in 1990. I have studied the greenhouse gas emissions of Finnish naturaql and drained peatlands. I have participated in greenhouse gas balance studies in reservoirs and in projects related to the use of peat and peatlands. I participated in an joint EU project to study greenhouse gas balances in the northern peatlands at Kevo. In 2003, I eventually finalized my PhD thesis about the change in greenhouse balances of natural and drained peatlands. I continued my greenhouse gas balance research on the production of reed canary grass. I have worked as a laboratory manager at the National Institute for Public Health in Kuopio related to the purification of drinking water. I participated in an environmental risk assessment project related to the sudden acidification of a lake with a mining influence. I have been a researcher and teacher at Savonia University of Applied Sciences in Kuopio. In the spring of 2008, I moved to University of Jyväskylä to study lake food webs and biogeochemistry using stable carbon isotopes and carbon dioxide and methane emission measurements. As an academy researcher (2010-2015), I studied the carbon storage in the in oxic and anoxic interfaces. As a spin of f..
Department of Environmental and Biological Sciences, Biogeochemistry Research Group
+358 40 355 3200
Teaching related to stable isotopes, methane and peatlands
Research groups - UEF
Bhattarai, Hem Raj; Wanek, Wolfgang; Siljanen, Henri M P; Ronkainen, Jussi G; Liimatainen, Maarit; Hu, Yuntao; Nykänen, Hannu; Biasi, Christina; Maljanen, Marja. 2021. Denitrification is the major nitrous acid production pathway in boreal agricultural soils Communications earth & environment 2 1: 54. 2021
Rissanen, Antti J; Saarela, Taija; Jäntti, Helena; Buck, Moritz; Peura, Sari; Aalto, Sanni L; Ojala, Anne; Pumpanen, Jukka; Tiirola, Marja; Elvert, Marcus; Nykänen, Hannu. 2021. Vertical stratification patterns of methanotrophs and their genetic controllers in water columns of oxygen-stratified boreal lakes Fems microbiology ecology 97 2: fiaa252. 2021
Hiltunen, Minna; Nykänen, Hannu; Syväranta, Jari. 2021. The influence of lipid content and taxonomic affiliation on methane and carbon dioxide production from phytoplankton biomass in lake sediment Limnology and oceanography 66 5: 1915-1925. 2021
Bhattarai, Hem Raj; Liimatainen, Maarit; Nykänen, Hannu; Kivimäenpää, Minna; Martikainen, Pertti J; Maljanen, Marja. 2019. Germinating wheat promotes the emission of atmospherically significant nitrous acid (HONO) gas from soils Soil biology and biochemistry 136: 107518. 2019
Kankaala, Paula; Arvola, Lauri; Hiltunen, Minna; Huotari, Jussi; Jones, Roger I; Nykänen, Hannu; Ojala, Anne; Olin, Mikko; Peltomaa, Elina; Peura, Sari; Rask, Martti; Tulonen, Tiina; Vesala, Sami. 2019. Ecosystem responses to increased organic carbon concentration: comparing results based on long-term monitoring and whole-lake experimentation Inland waters 9 4: 489-502. 2019
Nykänen, Hannu; Rissanen, Antti J; Turunen, Jukka; Tahvanainen, Teemu; Simola, Heikki. 2019. Carbon storage change and δ13C transitions of peat columns in a partially forestry-drained boreal bog Plant and soil 2020; 447: 365-378. 2019
Rissanen, AJ; Peura, S; Mpamah, PA; Taipale, S; Tiirola, M; Biasi, C; Mäki, A; Nykänen, H. 2019. Vertical stratification of bacteria and archaea in sediments of a small boreal humic lake Fems microbiology letters 366 5: fnz044. 2019
Stable Carbon Isotopic Composition Transitions of Peat Columns in a Partially Forestry-Drained Boreal Bog. Nykänen, H; Rissanen, AJ; Turunen, J; Tahvanainen, T; Simola, H / Proceedings of the Center of Excellence in Atmospheric Sciences (CoE ATM) Annual Seminar 2019. 2019. 2019
Voigt, C; Marushchak, ME; Mastepanov, M; Lamprecht, RE; Christensen, TR; Dorodnikov, M; Jackowicz-Korczynski, M; Lindgren, A; Lohila, A; Nykänen, H; Oinonen, M; Oksanen, T; Palonen, V; Treat, CC; Martikainen, PJ; Biasi, C. 2019. Ecosystem carbon response of an Arctic peatland to simulated permafrost thaw Global change biology 25 5: 1746-1764. 2019
Stable carbon isotopic composition of peat, subsoil and vegetation on natural and forestry-drained boreal peatlands. Nykänen, H; Mpamah, PA; Rissanen, AJ / Proceedings of 'The Centre of Excellence in Atmospheric Science (CoE ATM) - From Molecular and Biological processes to The Global Climate' Annual Meeting 2018. 2018. 2018