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Lina Polvi Sjöberg

Researcher in fluvial geomorphology with focus on rivers and streams.



Works at

KBC-huset, Linneaeus väg 6, Umeå, 5 06 07 Umeå universitet, 901 87 Umeå

My research is focused on how streams in northern Sweden form and develop. I am interested both in how physical proceses like sediment (e.g., sand, gravel, cobbles) transport and how the ecological processes and characteristics recover after restoration. Many streams in northern Sweden that were impacted by timber-floating through channelization have been restored during the past 10-20 years. Since restoration is a disturbance in itself, it can take time for aquatic and riparian organisms to recover. Part of my research examines which physical factors, such as the local geomorphology, geomorphic complexity, and larger landscape-scale factors, affect how the ecology of streams recover after restoration. Because we know so little about how rapid sections in tributaries to large rivers in northern Sweden that have abundant glacial legacy sediment "should look like" (because nearly all rapids were channelized), I am also addressing questions in my research about how these rapids form and develop. This is done through a flume experiment where I can manipulate the channel slope and water discharge and easily measure the channel morphology, through measuring sediment transport in the field, and using remote analyses. To measure sediment transport in the field I use a technique where I insert small radio tags into rocks that are placed into streams. In addition to the research focused on streams in northern Sweden, I am also interested in how ecosystem engineers affects streams, such as beavers and vegetation that affect channel form and physical processes.

Earth Surface Processes and Landforms, John Wiley & Sons 2023, Vol. 48, (14) : 2900-2919
Mason, Richard J.; Polvi, Lina E.
Earth Surface Processes and Landforms, John Wiley & Sons 2023, Vol. 48, (6) : 1089-1094
Poeppl, Ronald E.; Polvi, Lina E.; Turnbull, Laura
Forests, MDPI 2021, Vol. 12, (8)
Hof, Anouschka R.; Zachrisson, Anna; Polvi, Lina E.
Water resources research, American Geophysical Union (AGU) 2021, Vol. 57, (3)
Polvi, Lina E.
Earth Surface Processes and Landforms, John Wiley & Sons 2020, Vol. 45, (12) : 2840-2849
Dietze, Michael; Losee, James; Polvi, Lina; et al.
Geomorphology, Elsevier 2020, Vol. 370
Lininger, Katherine B.; Polvi, Lina E.
Journal of Geophysical Research - Earth Surface, American Geophysical Union (AGU) 2020, Vol. 125, (7)
Polvi, Lina E.; Dietze, M.; Lotsari, E.; et al.
Journal of Environmental Management, Elsevier 2020, Vol. 265
Polvi, Lina E.; Lind, Lovisa; Persson, Henrik; et al.
Ecohydrology, John Wiley & Sons 2019, Vol. 12, (5)
Su, Xiaolei; Lind, Lovisa; Polvi, Lina E.; et al.
Freshwater Biology, John Wiley & Sons 2019, Vol. 64, (5) : 1015-1028
Su, Xiaolei; Polvi, Lina E.; Lind, Lovisa; et al.
Journal of Applied Ecology, Wiley-Blackwell Publishing Inc. 2018, Vol. 55, (1) : 377-385
Frainer, André; Polvi, Lina E.; Jansson, Roland; et al.
Hydrobiologia, Springer 2018, Vol. 815, (1) : 83-95
Jonsson, Micael; Polvi, Lina E.; Sponseller, Ryan A.; et al.
Ecological Applications, Vol. 28, (2) : 587-597
Pilotto, Francesca; Nilsson, Christer; Polvi, Lina E.; et al.
WIREs Water, John Wiley & Sons 2018, Vol. 5, (2)
Polvi, Lina E.; Sarneel, Judith M.
Ecosystems (New York. Print), Vol. 20, (1) : 144-162
Nilsson, Christer; Sarneel, Judith M.; Palm, Daniel; et al.
Oxford Bibliographies in Ecology
Polvi, Lina E.; Baker, Daniel W.
Ecological Applications, Vol. 25, (5) : 1373-1389
Hasselquist, Eliza Maher; Nilsson, Christer; Hjalten, Joakim; et al.
Ecohydrology, Wiley-Blackwell 2015, Vol. 8, (5) : 753-764
Nilsson, Christer; Polvi, Lina E; Gardeström, Johanna; et al.
Freshwater Biology, Wiley-Blackwell 2015, Vol. 60, (12) : 2535-2546
Nilsson, Christer; Polvi, Lina E; Lind, Lovisa
Freshwater Biology, Wiley-Blackwell 2015, Vol. 60, (1) : 136-149
Stenroth, Karolina; Polvi, Lina E; Fältström, Emma; et al.
Restoration Ecology, Wiley-Blackwell 2014, Vol. 22, (1) : 1-4
Jørgensen, Dolly; Nilsson, Christer; Hof, Anouschka R.; et al.
Biological Reviews, Vol. 89, (4) : 791-804
Lind, Lovisa; Nilsson, Christer; Polvi, Lina E.; et al.
Geomorphology, Vol. 210 : 98-118
Polvi, Lina E.; Nilsson, Christer; Hasselquist, Eliza Maher
Earth Surface Processes and Landforms, John Wiley & Sons 2014, Vol. 39, (9) : 1245-1258
Polvi, Lina E.; Wohl, Ellen; Merritt, David M.
Ecology & Society, Resilience Alliance Publications 2013, Vol. 18, (3) : Article Number: UNSP 8-
Gardeström, Johanna; Holmqvist, Daniel; Polvi, Lina E.; et al.
BioScience, Vol. 63, (6) : 439-452
Polvi, Lina E; Wohl, Ellen
BioScience, Vol. 63, (3) : 199-210
Weber, Christine; Nilsson, Christer; Lind, Lovisa; et al.