Hannu Marttila

Hannu Marttila

D.Sc.(Tech.), Dr.Sc.(Tech.), M.Sc.(Tech.)

Senior Research Fellow
Hydrology, Water Resources

63 peer reviewed publications in international journals. The publications have been cited 644 times, of which the most cited publication accounts for 69 citations. The author has a h-index of 14.00. (Google Scholar)


Senior Research Fellow and leading Northern Hydrology and Arctic change research group at Water, Energy and Environmental Research Unit in UOulu. Marttila's research focuses on hydrological processes and catchment management issues in northern landscapes with strong cross-disciplinary work across science fields. He have broad experience from various environmental engineering fields focusing on nordic catchment hydrology and management, stable water isotopes, peatlands, land use and water quality issues, water protection issues and ecological connections. Marttila has been participating and managed several Academy of Finland, EU and foundation based projects. He is a chairman in Hydrology division at Finnish Water Association and hydrology subject editor for Boreal Environmental Research -journal.


Research interests

  • Northern hydrology
  • Peatland management
  • Isotope hydrology
  • Multidisciplinary science

Marttila is keen on water cycle and its interactions in northern environment and have strong knowledge and willingness to do true cross-disciplinary science across various science fields.

Research groups

  • Substitute for Head of the Research Unit , Water Resources and Environmental Engineering

Selected publications

  • Boer-Euser, Tanja; Meriö, Leo-Juhani; Marttila, Hannu (2019) Understanding variability in root zone storage capacity in boreal regions. - Hydrology and Earth System Sciences 23 (1), 125-138 . [Original]
  • Ashraf, F.B.; Haghighi, A.T.; Riml, J.; Alfredsen, K.; Koskela, J.J.; Kløve, B.; Marttila, H. (2018) Changes in short term river flow regulation and hydropeaking in Nordic rivers. - Scientific Reports 8 (1), 17232 . [Original]
  • Marttila, H.; Dudley, B.D.; Graham, S.; Srinivasan, M.S. (2018) Does transpiration from invasive stream side willows dominate low flow conditions? An investigation using hydrometric and isotopic methods in a headwater catchment. - Ecohydrology 11 (2), 1-11, e1930 . [Original] [Self-archived]
  • Dudley, Bruce D.; Marttila, Hannu; Graham, Scott L.; Evison, Ryan; Srinivasan, M.S. (2018) Water sources for woody shrubs on hillslopes : an investigation using isotopic and sapflow methods. - Ecohydrology 11 (2), e1926 . [Original] [Self-archived]
  • Sarremejane, Romain; Mykrä, Heikki; Huttunen, Kaisa-Leena; Mustonen, Kaisa-Riikka; Marttila, Hannu; Paavola, Riku; Sippel, Kalle; Veijalainen, Noora; Muotka, Timo (2018) Climate-driven hydrological variability determines inter-annual changes in stream invertebrate community assembly. - Oikos online, online . [Original] [Self-archived]
  • Ashraf, Faisal Bin; Torabi Haghighi, Ali; Marttila, Hannu; Kløve, Bjørn (2016) Assessing impacts of climate change and river regulation on flow regimes in cold climate : A study of a pristine and a regulated river in the sub-arctic setting of Northern Europe. - Journal of hydrology 542, 410–422
  • Menberu, Meseret Walle; Marttila, Hannu; Tahvanainen, Teemu; Kotiaho, Janne S.; Hokkanen, Reijo; Kløve, Bjørn; Ronkanen, Anna-Kaisa (2017) Changes in pore water quality after peatland restoration : Assessment of a large-scale, replicated Before-After-Control-Impact study in Finland. - Water resources research 53 (10), 8327–8343 . [Original]
  • Isokangas, Elina; Rossi, Pekka M.; Ronkanen, Anna-Kaisa; Marttila, Hannu; Rozanski, Kazimierz; Klöve, Björn (2017) Quantifying spatial groundwater dependence in peatlands through a distributed isotope mass balance approach. - Water resources research 53 (3), 2524–2541 . [Original]
  • Turunen, Jarno; Aroviita, Jukka; Marttila, Hannu; Louhi, Pauliina; Laamanen, Tiina; Tolkkinen, Mikko; Luhta, Pirkko-Liisa; Kløve, Bjørn; Muotka, Timo (2017) Differential responses by stream and riparian biodiversity to in-stream restoration of forestry-impacted streams. - Journal of Applied Ecology 54 (5), 1505-1514 . [Original]
  • Haahti, K.; Marttila, H.; Warsta, L.; Kokkonen, T.; Finér, L.; Koivusalo, H. (2016) Modeling sediment transport after ditch network maintenance of a forested peatland. - Water resources research 52 (11), 9001–9019 . [Original]
  • Mustonen, Kaisa-Riikka; Mykrä, Heikki; Marttila, Hannu; Haghighi, Ali Torabi; Klöve, Björn; Aroviita, Jukka; Veijalainen, Noora; Sippel, Kalle; Muotka, Timo (2016) Defining the natural flow regimes of boreal rivers: relationship with benthic macroinvertebrate communities. - Freshwater Science 35 (2), 559-572 . [Original]
  • Rossi, Pekka; Marttila, Hannu; Jyväsjärvi, Jussi; Ala-aho, Pertti; Isokangas, Elina; Muotka, Timo; Klöve, Björn (2015) Environmental conditions of boreal springs explained by capture zone characteristics. - Journal of hydrology 531 (Part 3), 992-1002 . [Original]
  • Jyväsjärvi, Jussi; Marttila, Hannu; Rossi, Pekka M.; Ala-Aho, Pertti; Olofson, Bo; Nisell, Jakob; Backman, Birgitta; Ilmonen, Jari; Virtanen, Risto; Paasivirta, Lauri; Britschgi, Ritva; Klöve, Björn; Muotka, Timo (2015) Climate-induced warming imposes a threat to North European spring ecosystems. - Global Change Biology 21 (2), 4561-4569 . [Original]
  • Marttila, Hannu; Kløve, Bjørn (2015) Spatial and temporal variation in particle size and particulate organic matter content in suspended particulate matter from peatland-dominated catchments in Finland. - Hydrological processes 29 (6), 1069–1079 . [Original]
  • Tuukkanen, Tapio; Marttila, Hannu; Klove, Bjorn (2014) Effect of soil properties on peat erosion and suspended sediment delivery in drained peatlands. - Water resources research 50 (4), 3523-3535
  • Marttila, Hannu; Saarinen, Tuomas; Celebi, Ahmet; Klöve, Björn (2013) Transport of particle-associated elements in two agriculture-dominated boreal river systems. - Science of the total environment 461, 693-705
  • Marttila H, Klöve B (2010) Dynamics of erosion and suspended sediment transport from drained peatland forestry. - Journal of hydrology 388 (3-4), 414-425
  • Marttila, Hannu & Klöve, Björn (2008) Erosion and delivery of deposited peat sediment. - Water resources research 44

Thesis supervisions

Riku Eskelinen: Runoff generation and load estimation in drained peatland areas