Projekt per år
Organisationsprofil
Our research focuses on the functioning of lake ecosystems, especially on food web interactions and nutrient cycling and their implications on lake restoration and management. Additionally, coastal environments are included in the studies. In the food web studies, many projects have been targeted on the effects of disturbances on predator-prey interactions and on the effects of top-down regulation. The studied disturbances have included for instance increasing water turbidity, water colour and turbulence. Studies on nutrient cycling have mostly been targeted on factors regulating the internal nutrient loading of lakes, including for instance sediment resuspension, bioturbation and oxygen conditions. Both pelagic and littoral zones have been included in the food web interaction studies as well as in nutrient cycling studies. The studies include field sampling, as well as experimental work in the field and in the laboratory. Many of the studies are connected to lake management and restoration projects and are planned to improve our knowledge on the effects and applicability of different restoration methods. The studied restoration methods include food web management (biomanipulation), artificial aeration and hypolimnetic withdrawal. The research results have affected the restoration activities of several lakes. Read more on our website
Vetenskapsgrenar
- 1172 Miljövetenskap
- 1181 Ekologi, evolutionsbiologi
Internationellt och inhemskt samarbete
Personer
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Jukka Horppila
- Forskningsprogrammet för ekosystem och miljö - professor
- Centret för hållbarhetsvetenskap (HELSUS)
- Lake Ecosystem Dynamics
- Doctoral Programme in Interdisciplinary Environmental Sciences - Handledare för doktorandprogram
Person: HU, U4 Undervisnings- och forskningspersonal
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Leena Nurminen
- Forskningsprogrammet för ekosystem och miljö - universitetslektor
- Centret för hållbarhetsvetenskap (HELSUS)
- Lake Ecosystem Dynamics
- Doctoral Programme in Geosciences - Handledare för doktorandprogram
- Doctoral Programme in Interdisciplinary Environmental Sciences - Handledare för doktorandprogram
Person: U3 Undervisnings- och forskningspersonal, HU
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Changes in aquatic macrophyte communities in the last hundred years and the underlying environmental factors across regions
Alahuhta, J., Heino, J., Hjort, J., Akasaka, M., Väliranta, M. & Nurminen, L.
01/01/2017 → …
Projekt: Forskningsprojekt
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The development of internal loading phosphorus loading in an aerated lake
Horppila, J., Niemistö, J. & Silvonen, S.
01/02/2016 → 31/12/2107
Projekt: Forskningsprojekt
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Freshwater Research (FRESH)
Aarnos, H., Brek-Laitinen, G., Estlander, S., Holmroos, H., Horppila, J., Huotari, J., Härkönen, L., Kahilainen, K., Kaitaranta, J., Korhonen, J., Kuivikko, M., Lappalainen, J., Lehtonen, H., Liljendahl, A., López Bellido, J., Malinen, T., Müller, S., Niemistö, J., Nurminen, L., Soininen, J., Ojala, A., Olin, M., Pekcan-Hekim, Z., Peltomaa, E., Uusikivi, J. A. J., Virtanen, L. K., Vähätalo, A. & Xiao, Y.
28/02/2011 → …
Projekt: Forskningsutvärdering 2011
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VESIKUJA: Vesistöjen sisäinen kuormitus hyötykäyttöön - uuden sovelluksen jalkauttaminen
Nurminen, L., Niemistö, J., Jilbert, T., Silvonen, S. & Horppila, J.
01/01/2020 → 31/12/2020
Projekt: Forskningsprojekt
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Alusveden puhdistus ympärivuotiseksi - sisäisen fosforikuormituksen hyödyntäminen talvella
01/12/2018 → 31/05/2020
Projekt: Forskningsprojekt
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Effects of dissolved organic carbon gradient on epilimnetic zooplankton communities in lakes
Estlander, S. & Horppila, J., juni 2023, (!!E-pub ahead of print) I: Hydrobiologia. 13 s.Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review
Öppen tillgång -
Factors behind the threshold-like changes in lake ecosystems along a water colour gradient: The effects of dissolved organic carbon and iron on euphotic depth, mixing depth and phytoplankton biomass
Horppila, J., Keskinen, S., Nurmesniemi, M., Nurminen, L., Pippingsköld, E., Rajala, S., Sainio, K. & Estlander, S., juni 2023, I: Freshwater Biology. 68, 6, s. 1031-1040 10 s.Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review
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Recycling eutrophic lake sediments into grass production: A four-year field experiment on agronomical and environmental implications
Kiani, M., Zrim, J., Simojoki, A., Tammeorg, O., Penttinen, P., Markkanen, T. & Tammeorg, P., 20 apr. 2023, I: Science of the Total Environment. 870, 18 s.Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review
Öppen tillgångFil -
Effects of water colour on the pigment content of a floating-leaved macrophyte - Implications of lake brownification
Horppila, J., Pippingsköld, E. S. L. & Estlander, S., sep. 2022, I: Aquatic Botany. 181, 8 s., 103540.Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review
Öppen tillgångFil -
Extracting phosphorus and other elements from lake water: Chemical processes in a hypolimnetic withdrawal and treatment system
Silvonen, S., Niemistö, J., Myyryläinen, J. O., Kinnunen, O. K., Huotari, S., Nurminen, L., Horppila, J. & Jilbert, T., 30 juni 2022, I: Water Research. 218, 11 s., 118507.Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review
Öppen tillgångFil
Aktiviteter
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Participation in the session of the Supreme Administrative Court
Jukka Horppila (Deltagare)
31 aug. 2023Aktivitet: Andra aktivitetstyper › Annan
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Invited talk on lake restoration
Jukka Horppila (!!Speaker)
19 sep. 2023Aktivitet: Typer för tal eller presentation › !!Invited talk
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Participation in the session of the Supreme Administrative Court
Jukka Horppila (Deltagare)
14 juni 2023Aktivitet: Andra aktivitetstyper › Annan
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Participation in the session of the Supreme Administrative Court
Jukka Horppila (Deltagare)
11 maj 2023Aktivitet: Andra aktivitetstyper › Annan
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Participation in the session of the Supreme Administrative Court
Jukka Horppila (Deltagare)
19 apr. 2022Aktivitet: Andra aktivitetstyper › Annan
Tidningsurklipp
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Haastattelu hoitokalastuksen soveltuvuudesta Hiidenveden kunnostukseen
01/02/2013
1 Mediabidrag
Press/media: !!Press / Media