A study of running waters in the boreal region
A study of running waters in the boreal region

Krycklan Catchment Study

A study of running waters in the boreal region

What is Krycklan?

Krycklan is a research catchment and one of the most ambitious projects integrating water quality, hydrology and aquatic ecology in running waters in the boreal region. Monitoring and research has been conducted since 1920 in the area, with more intensive research the last 30 years. On this page, you will find information about Krycklan, its history, ongoing research, newsletters, recent publications and much more.

Publications 2010-2015

Listed below are the publications connected to Krycklan published each year

View the publications from: 2015  2014   2013   2012   2011   2010


Ali, G., Tetzlaff, D., McDonnell, J.J., Soulsby, C., Carey, S., Laudon, H., McGuire, K., Buttle, J., Seibert, J. & Shanley, J. 2015. Comparison of threshold hydrologic response across northern catchments. Hydrological Processes 29:3575–3591, doi:10.1002/hyp.10527

Berggren, M., Bergström, A.-K. & Karlsson, J. 2015. Intraspecific Autochthonous and Allochthonous Resource Use by Zooplankton in a Humic Lake during the Transitions between Winter, Summer and Fall. PLoS ONE 10(3): e0120575, doi:10.1371/journal.pone.0120575

Bidleman, T., Agosta, K., Andersson, A., Brorström-Lundén, E., Haglund, P., Hansson, K., Laudon, H., Newton, S., Nygren, O., Ripszam, M., Tysklind, M. & Wiberg, K. 2015. Atmospheric pathways of chlorinated pesticides and natural bromoanisoles in the northern Baltic Sea and its catchment. AMBIO 44(3):472-483, doi:10.1007/s13280-015-0666-4

Bishop, K. & Seibert, J. 2015. A primer for hydrology: the beguiling simplicity of Water's journey from rain to stream at 30. Hydrological Processes 29:3443–3446, doi:10.1002/hyp.10516

Burrows, R.M., Hotchkiss, E.R., Jonsson, M., Laudon, H., McKie, B.G. & Sponseller, R.A. 2015. Nitrogen limitation of heterotrophic biofilms in boreal streams. Freshwater Biology 60(7):1237–1251, doi:10.1111/fwb.12549

Creamer, R.E. et al. 2015. Ecological network analysis reveals the inter-connection between soil biodiversity and ecosystem function as affected by land use across Europe. Applied Soil Ecology, doi:10.1016/j.apsoil.2015.08.006

Creamer, R.E., Stone, D., Berry, P. & Kuiper, I. 2015. Measuring respiration profiles of soil microbial communities across Europe using MicroResp™ method. Applied Soil Ecology, doi:10.1016/j.apsoil.2015.08.004

Eklöf, K., Kraus, A., Futter, M., Schelker, J., Meili, M., Boyer, E.W. & Kevin Bishop. 2015. Parsimonious Model for Simulating Total Mercury and Methylmercury in Boreal Streams Based on Riparian Flow Paths and Seasonality. Environmental Science & Technology 49(13):7851–7859, doi:10.1021/acs.est.5b00852

Filipovic, M., Laudon, H., McLachlan, M.S. & Berger, U. 2015. Mass Balance of Perfluorinated Alkyl Acids in a Pristine Boreal Catchment. Environmental Science & Technology, 49, 12127–12135, doi:10.1021/acs.est.5b03403.

Filipovic, M. 2015. Fate of perfluoroalkyl acids in the aquatic environment with a focus on mass balance studies. Dept. of Environmental Science and Analytical Chemistry, Stockholm University, ISBN: 978-91-7649-153-9.

Francisco, R., Stone, D., Creamer, R.E., Sousa, J.P. & Morais, P.V. 2015. European scale analysis of phospholipid fatty acid composition of soils to establish operating ranges. Applied Soil Ecology, doi:10.1016/j.apsoil.2015.09.001.

Garcia-Palacios, P., McKie, B.G., Tanya Handa, I., Frainer, A., & Hättenschwiler, S. (2015). The importance of litter traits and decomposers for litter decomposition: A comparison of aquatic and terrestrial ecosystems within and across biomes, Functional Ecology DOI: 10.1111/1365-2435.12589.

Griffiths, R.I., Thomson, B.C., Plassart, P., Gweon, H.S., Stone, D., Creamer, R.E., Lemanceaud, P. & Bailey, M.J. 2015. Mapping and validating predictions of soil bacterial biodiversity using European and national scale datasets. Applied Soil Ecology, doi:10.1016/j.apsoil.2015.06.018.

Gundale, M.J., Nilsson, M.-C., Pluchon, N. & Wardle, D.A. 2015. The effect of biochar management on soil and plant community properties in a boreal forest. Global Change Biology Bioenergy, doi:10.1111/gcbb.12274

Haei, M & Laudon, L. (2015). Carbon dynamics and changing winter conditions: A review of current understanding and future research directions. Biogeoscience Discussion, bg-2015-429.

Hasper, T. B., Wallin, G., Lamba, S., Hall, M., Jaramillo, F., Laudon, H., Linder, S., Medhurst, J. L., Räntfors, M., Sigurdsson, B. D. & Uddling, J. In press. Water use by Swedish boreal forests in a changing climate. Functional Ecology, doi:10.1111/1365-2435.12546

Hasper, Thomas B. Tree Stomatal regulation and water use in a changing climate: From tropical to boreal ecosystems. Doctoral thesis. Dept. of Biological and Environmental Sciences, University of Gothenburg, ISBN: 978-91-85529-84-1.

Hasselquist, Eliza Maher. 2015. Gradients of time and complexity: understanding how riparian and instream ecosystems recover after stream restoration. Doctoral thesis. Dept. of Ecology and Environmental Science, Umeå University, ISBN 978-91-7601-302-1.

Hendriksen, N.B., Creamer, R.E., Stone, D. & Winding, A. 2015. Soil exo-enzyme activities across Europe—The influence of climate, land-use and soil properties. Applied Soil Ecology, doi:10.1016/j.apsoil.2015.08.012

Henriksson, N., Tarvainen, L., Lim, H., Tor-Ngern, P., Palmroth, S., Oren, R., Marshall, J. & Näsholm, T. 2015. Stem compression reversibly reduces phloem transport in Pinus sylvestris trees. Tree Physiology 35(10):1075-1085, doi:10.1093/treephys/tpv078

Hytteborn, J.K., Temnerud, J., Alexander, R.B., Boyer, E.W., Futter, M.N., Fröberg, M., Dahne, J. & Bishop, K.H. 2015. Patterns and predictability in the intra-annual organic carbon variability across the boreal and hemiboreal landscape. Science of The Total Environment 520:260–269, doi:10.1016/j.scitotenv.2015.03.041

Johansson, S., Carlqvist, K., Kataria, R., Ulvcrona, T., Bergsten, U., Arshadi, M., Galbe, M. & Lidén, G. 2015. Implications of differences in macromolecular composition of stem fractions for processing of Scots pine. Wood Science and Technology 49(5):1037-1054, doi:10.1007/s00226-015-0739-3

Kothawala, D.N., Ji, X., Laudon, H., Ågren, A,M., Futter, M.N., Köhler, S.J., Tranvik, L.J. 2015. The relative influence of land cover, hydrology, and in-stream processing on the composition of dissolved organic matter in boreal streams. Journal of Geophysical Research: Biogeosciences 120(8):1491–1505, doi:10.1002/2015JG002946

Kugler, F., Lee, S. K., Hajnsek, I. & Papathanassiou, K. P. 2015. Forest Height Estimation by Means of Pol-InSAR Data Inversion: The Role of the Vertical Wavenumber, Geoscience and Remote Sensing, IEEE Transactions on 53(10):5294-5311, doi:10.1109/TGRS.2015.2420996

Kuglerová, L., Dynesius, M., Laudon, H. & Jansson, R. In press. Relationships between plant assemblages and water flow across a boreal forest landscape – A comparison of liverworts, mosses, and vascular plants. Ecosystems, doi:10.1007/s10021-015-9927-0

Kuglerová, L., Jansson, R., Sponseller, R.A., Laudon, H. & Renöfält Malm, B. 2015. Local and regional processes determine plant species richness in a river-network metacommunity. Ecology 96(2):381-391, doi:10.1890/14-0552.1

Kuglerová, L. 2015. Grow with the flow: Hydrological controls of riparian vegetation in boreal stream networks. Doctoral thesis. Dept. of Ecology and Environmental Science, Umeå University, ISBN 978-91-7601-212-3.

Lam, N., Nathanson, M., Lundgren, N., Rehnström, R. & Lyon, S.W. 2015. A Cost-Effective Laser Scanning Method for Mapping Stream Channel Geometry and Roughness. Journal of the American Water Resources Association (JAWRA) 51(5):1211-1220, doi:10.1111/1752-1688.12299

Laudon, H. and Ottosson Löfvenius, M. (in press). Adding snow to the picture – providing complementary winter precipitation data to the Krycklan catchment study database. Hydrological Processes. DOI: 10.1002/hyp.10753

Laudon, H., Kuglerová, L., Sponseller, R.A., Futter, M., Nordin, A., Bishop, K., Lundmark, T., Egnell, G., Ågren, A.M. (2016). The role of biogeochemical hotspots, landscape heterogeneity and hydrological connectivity for minimizing forestry effects on water quality, Ambio, DOI 10.1007/s13280-015-0751-8

Ledesma, J., Grabs, T., Bishop, K., Schiff, S. & Köhler, S. 2015. Potential for long-term transfer of dissolved organic carbon from riparian zones to streams in boreal catchment. Global Change Biology 21(8):2963–2979, doi:10.1111/gcb.12872

Leith, F.I., Dinsmore, K.J., Wallin, M.B., Billett, M.F., Heal, K.V., Laudon, H., Öquist, M.G. & Bishop, K. Carbon dioxide transport across the hillslope–riparian–stream continuum in a boreal headwater catchment. Biogeosciences 12:1881-1892, doi:10.5194/bg-12-1881-2015

Lidman, F., Peralta-Tapia, A., Vesterlund, A., & Laudon, H. (2016). 234 U/238 U in a boreal stream network—Relationship to hydrological events, groundwater and scale. Chemical Geology, 420, 240-250.

Logue, J.B., Stedmon, C.A., Kellerman, A.M., Nielsen, N,J., Andersson, A.F., Laudon, H., Lindström, E.S. & Kritzberg, E.S. 2015. Experimental insights into the importance of aquatic bacterial community composition to the degradation of dissolved organic matter. The ISME Journal 1-13, doi:10.1038/ismej.2015.131

Lucas, R.W., Sponseller, R.A., Gundale, M.J., Stendahl, J., Fridman, J., Högberg, P. & Laudon, H. In press. Long-term declines in stream and river inorganic nitrogen (N) export correspond to forest change. Ecological Applications

Lyon, S.W., Nathanson, M., Lam, N., Dahlke, H.E., Rutzinger, M., Kean, J.W. & Laudon, H. 2015. Can Low-Resolution Airborne Laser Scanning Data Be Used to Model Stream Rating Curves? Water 7(4):1324-1339, doi:10.3390/w7041324

Ma, M., Wang, D., Du, H., Sun, T., Zhao, Z. & Wei, S. In press. Atmospheric mercury deposition and its contribution of the regional atmospheric transport to mercury pollution at a national forest nature reserve, southwest China. Environmental Science and Pollution Research, doi:10.1007/s11356-015-5152-9

Maaroufi, N.I., Nordin, A., Hasselqvist, N.J., Bach, L.H., Palmqvist, K. & Gundale, M.J. 2015. Anthropogenic nitrogen deposition enhances carbon sequestration in boreal soils. Global Change Biology 21(8):3169–3180, doi:10.1111/gcb.12904

Peralta-Tapia, A., Sponseller, R.A., Ågren, A., Tetzlaff, D., Soulsby, C. & Laudon, H. 2015. Scale-dependent groundwater contributions influence patterns of winter baseflow stream chemistry in boreal catchments. Journal of Geophysical Research: Biogeosciences 120(5):847–858, doi:10.1002/2014JG002878

Peralta-Tapia, A., Sponseller, R.A., Tetzlaff, D., Soulsby, C. & Laudon, H. 2015. Connecting precipitation inputs and soil flow pathways to stream water in contrasting boreal catchments. Hydrological Processes 29(16):3546–3555, doi:10.1002/hyp.10300

Peralta-Tapia, A. 2015. From precipitation to stream - isotopic insights into hydrological flow paths and transit times in boreal catchments. Acta Universitatis agriculturae Sueciae 2015:64. Doctoral thesis. Dept. of Forest Ecology and Management, SLU Umeå. ISBN 978-91-576-8326-7, http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2636

Rutgers, M., Wouterse, M., Drost, S.M., Breure, A.M., Mulder, C., Stone, D., Creamerd, R.E., Windinge, A. & Bloem, J. 2015. Monitoring soil bacteria with community-level physiological profiles using Biolog™ ECO-plates in the Netherlands and Europe. Applied Soil Ecology, doi:10.1016/j.apsoil.2015.06.007

Santoro, M., Eriksson, L. E., & Fransson, J. E. 2015. Reviewing ALOS PALSAR Backscatter Observations for Stem Volume Retrieval in Swedish Forest. Remote Sensing 7(4):4290-4317, doi:10.3390/rs70404290

Sponseller, R.A., M.J. Gundale, M. Futter, E. Ring, A. Nordin, T. Näsholm and H. Laudon (In press). Nitrogen dynamics in managed boreal forests: Recent advances and future research directions. Ambio, DOI 10.1007/s13280-015-0755-4

Stone, D., Blomkvist, P., Bohse Hendriksen, N., Bonkowskie, M., Bracht Jørgensen, H. et al. 2015. A method of establishing a transect for biodiversity and ecosystem function monitoring across Europe. Applied Soil Ecology, doi:10.1016/j.apsoil.2015.06.017

Temnerud, J., von Brömssen, C., Fölster, J., Buffam, I., Andersson, J.-O., Nyberg, L. & Bishop, K. 2015. Map-based prediction of organic carbon in headwaters streams improved by downstream observations from the river outlet, Biogeosciences Discussions 12(12):9005-9041, doi:10.5194/bgd-12-9005-2015

Tetzlaff, D., Buttle, J., Carey, S.K., McGuire, K., Laudon, H. & Soulsby, C. 2015. Tracer-based assessment of flow paths, storage and runoff generation in northern catchments: a review, Hydrological Processes  29(16):3475–3490, doi:10.1002/hyp.10412

Tetzlaff, D., Buttle, J., Carey, S.K., van Huijgevoort, M.H.J., Laudon, H., McNamara, J.P., Mitchell, C.P.J., Spence, C., Gabor, R.S. & Soulsby, C. 2015. A preliminary assessment of water partitioning and ecohydrological coupling in northern headwaters using stable isotopes and conceptual runoff models. Hydrological Processes, doi:10.1002/hyp.10515

Teutschbein, C., Grabs, T., Karlsen, R.H., Laudon, H. & Bishop, K. 2015. Hydrological Response to Changing Climate Conditions: Spatial Streamflow Variability in the Boreal Region. Water Resources Research, 10.1002/2015WR017337.

Tiwari, T. 2015. Conceptualizing Catchment Processes: From basic understandings to practical application. Acta Universitatis agriculturae Sueciae 2015:67. Doctoral thesis. Dept. of Forest Ecology and Management, SLU Umeå. ISBN 978-91-576-8332-8, http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2944

Ågren, A.M., Lidberg, W. & Ring, E. 2015. Mapping Temporal Dynamics in a Forest Stream Network—Implications for Riparian Forest Management. Forests 6(9):2982-3001, doi:10.3390/f6092982

Åkerblom, S., Meili, M. & Bishop, K. 2015. Organic Matter in Rain: An Overlooked Influence on Mercury Deposition. Environmental Science & Technology Letters 2(4):128–132, doi:10.1021/acs.estlett.5b00009



Polvi, Nilsson and Hasselquist. 2014. Potential and actual geomorphic complexity of restored headwater streams in northern Sweden. Geomorphology 210, 98-118

Lind, Nilsson and Weber. 2014. Effects of ice and floods on vegetation in streams in cold regions: implications for climate change. Ecology and Evolution 4(21). 4173–4184

Leith, F. I., Dinsmore, K. J., Wallin, M. B., Billett, M. F., Heal, K. V., Laudon, H., Öquist, M. G., Bishop, K., 2014. Carbon dioxide transport across the hillslope–riparian–stream continuum in a boreal headwater catchment, Biogeosciences - Discussions, 11, 15585-15619, doi:10.5194/bgd-11-15585-2014

Venkiteswaran, J. J., Schiff, S. L., Wallin, M. B. 2014. Large carbon dioxide fluxes from headwater boreal and sub-boreal streams, PLOS One, 9(7), e101756

Åberg, J. and Wallin, M. B. 2014. Evaluating a fast headspace method for measuring DIC and subsequent calculation of pCO2 in freshwater systems, Inland Waters, 4(2), 157-166, doi:10.5268/IW-4.2.694

Kuglerová, L., Jansson, R., Sponseller, R.A., Laudon, H., and Malm-Renöfält, B., (2014). Local and regional processes determine plant species richness in a river-network metacommunity, Ecology, in press.

Tetzlaff, D., Buttle, J., Carey, S.K., McGuire, K., Laudon, H., Soulsby, C. (2014) Tracer-based assessment of flow paths, storage and runoff generation in northern catchments: a review. In press, Hydrological Porcesses.

Winterdahl, M., M. Erlandsson, M. N. Futter, G. A. Weyhenmeyer, and K. Bishop (2014), Intra-annual variability of organic carbon concentrations in running waters: Drivers along a climatic gradient, Global Biogeochemical Cycles, 28(4), 2013GB004770, doi: 10.1002/2013GB004770.

Gundale, M.J.; From, Bach, F. Bach, L.H., and Nordin, A (2014). Anthropogenic nitrogen deposition in boreal forests has a minor impact on the global carbon cycle Global Change Biology, 20, 276-286

Ågren, A. M., Lidberg, W., Strömgren, M., Ogilvie, J. & Arp, P. A. (2014b) Evaluating digital terrain indices for soil wetness mapping - a Swedish case study. Hydrol Earth Syst Sc. 18, 3623-3634.

Oni, S.K., Futter, M.N., Teutschbein, C., Laudon, H., (2014). Cross-scale ensemble projections of dissolved organic carbon dynamics in boreal forest streams. Climate Dynamics, DOI 10.1007/s00382-014-2124-6.

Ågren, A., Buffam, I., Cooper, D.M., Tiwari, T., Evans, C.D., and Laudon, H., (2014). Can the heterogeneity in stream dissolved organic carbon be explained by contributing landscape elements? Biogeosciences, 11, 1199-1213.

Genevieve; A., Doerthe; T., Kruitbos, L., Soulsby, C., Carey, S., McDonnell, J., Buttle, J., Laudon, H., Seibert, J., McGuire, K., Shanley, J.(2014). Analysis of hydrological seasonality across northern catchments using monthly precipitation-runoff polygon metrics. Hydrological Science Journal, 59, 56-72.

Peralta-Tapia, A., Sponseller, R. A., Tetzlaff, D., Soulsby, C., and Laudon, H., (2014). Connecting precipitation inputs and soil flow pathways to stream water in contrasting boreal catchments, Hydrological Processes, DOI: 10.1002/hyp.10300

Kuglerová, L., Ågren, A., Jansson, R. Laudon, H. (2014). Towards optimizing riparian buffer zones: Ecological and biogeochemical implications for forest management. Forest Ecology and Management, 334, 74–84.

Sponseller, R.A., J. Temnerud, K. Bishop, and H. Laudon. 2014. Patterns and drivers of riverine nitrogen (N) across alpine, subarctic, and boreal Sweden. Biogeochemistry, 120, 105-120.

Öquist, M. G., Bishop, K., Grelle, A., Klemedtsson, L., Köhler, S.J. Laudon, H., Lindroth, A., Ottosson Löfvenius, M., Wallin, M.B., and Nilsson, M.B. (2014).The full annual carbon balance of boreal forests is highly sensitive to precipitation. Environmental Science & Technology Letters, dx.doi.org/10.1021/ez500169j.

Karlsson, J., Berggren, M., Ask, J., Byström, P., Jonsson, A., Laudon, H. and Jansson, M. (2014). Response to Comment: Terrestrial support of pelagic consumers in unproductive lakes—Uncertainty and potential in assessments using stable isotopes. Limnology and Oceanography, 59(5), 2014, 1800–1803.

Köhler, Stephan J.; Lidman, Fredrik and Laudon, H. (2014). Landscape types and pH control organic matter mediated mobilization of Al, Fe, U and La in boreal catchments. Geochimica et Cosmochimica Acta, 135, 190-202.

Codling G., Halsall C., Ahrens L., Del Vento S., Wiberg K., Bergknut M., Laudon H., Ebinghaus R. (2014). The fate of per- and polyfluoroalkyl substances within a melting snowpack of a boreal forest, Environmental Pollution, 191, 190-198.

Camino-Serrano, M., Gielen, B., Luyssaert, S., Ciais, P., Vicca, S., Guenet, B., De Vos, B., Cools, N., Ahrens, B., Arain, A., Borken, W., Clarke, N., Clarkson, B., Cummins, T., Don, A., Pannatier, E.G., Laudon, H., Moore, T., Nieminen, T., Nilsson, M.B., Peichl, M., Schwendenmann, L., Siemens, J., and Janssens I., (2014). Linking variability in soil solution dissolved organic carbon to climate, soil type and vegetation type. Global Biogeochemical Cycles. DOI: 10.1002/2013GB004726.

Oni, S.K., Futter, M.N., Teutschbein, C., Laudon, H., (2014). Cross-scale ensemble projections of dissolved organic carbon dynamics in boreal forest streams. Climate Dynamics, DOI 10.1007/s00382-014-2124-6.

Ågren, A., Buffam, I., Cooper, D.M., Tiwari, T., Evans, C.D., and Laudon, H., (2014). Can the heterogeneity in stream dissolved organic carbon be explained by contributing landscape elements? Biogeosciences, 11, 1199-1213.

Lidman, F., Köhler, S., Mörth, C.M., Laudon, H., (2014). Metal transport in the boreal landscape - the role of wetlands and the affinity for organic matter. Environmental Science & Technology. 48, 3783-3790.

Eklöf, K., Schelker, J., Sørensen, R., Meili, M., Laudon, H., von Brömssen, C., Bishop, K., (2014). Impact of forestry on total and methyl-mercury in surface waters: distinguishing effects of logging and site preparation. Environmental Science & Technology, 48, 4690-4698.  

Tiwari, T., Laudon, H., Beven K. and Ågren. A. (2014).Downstream changes in DOC: Inferring contributions in the face of model uncertainties. Water Resources Research, DOI: 10.1002/2013WR014275.

Kuglerová, L., Jansson, R., Ågren, A., Laudon, H., and Malm-Renöfält, B. (2014) Groundwater discharge creates hotspots of riparian plant species richness in a boreal forest stream network, Ecology, 95, 715-725.

Newton, S., Bidleman, T., Bergknut, M., Racine, J., Laudon, H., Giesler, R., Wiberg, K., (2014). Atmospheric deposition of persistent organic pollutants and chemicals of emerging concern at two sites in northern Sweden. Environmental Science-Processes & Impacts, 16, 298-305.

Sundman, A., Karlsson, T., Laudon, H., and Persson, P. (2014). XAS study of iron speciation in waters and soils from a boreal catchment. Chemical Geology, 364, 93-102.

Schelker, J., Öhman, K., Löfgren, S. and Laudon, H (2014).Scaling of increased dissolved organic carbon inputs by forest clear-cutting - What arrives downstream? Journal of Hydrology, 508, 299–306.

Gundale, M.J., Bach, L.H., and Nordin, A (2014). The impact of simulated chronic nitrogen deposition on the biomass and N-2-fixation activity of two boreal feather moss-cyanobacteria associations. Biology Letters, 9, 6, 20130797   Published: DEC 23 2013. 


Sundman, A., Karlsson, T., Persson, P. (2013). An experimental protocol for structural characterization of Fe in dilute natural waters. Environmental Science and Technology. 47, 8557-8564. dx.doi.org/10.1021/es304630a

Frainer, A. (2013). Ecosystem functioning in streams: Disentangling the roles of biodiversity, stoichiometry and anthropogenic drivers. ISBN 978-91-7459-758-5. Doctoral Thesis Umeå University.

Lidman, F. (2013). Radionuclide transport in the boreal landscape – U, Th and other metals in forests, wetlands and streams. ISBN 978-91-7459-714-1. Doctoral Thesis Umeå University.

Schelker, J. (2013). Forestry impact on water quality: A landscape perspective on dissolved organic carbon. Acta Universitatis Agriculturae Sueciae, Doctoral Thesis 2013:38.

Göthe, E., Angeler, D.G. and Sandin, L. (2013) Metacommunity structure in a small boreal stream network Journal of Animal Ecology, DOI: 10.1111/1365-2656.12004

Jabiol, J., Bruder, A., Gessner, M.O., Makkonen, M., Mckie, B.G. , Peeters, E.T.H.M., Vos, V.C.A. and Chauvet, E.,  (2013). Diversity patterns of leaf-associated aquatic hyphomycetes along a broad latitudinal gradient. Fungal Ecology, 6, 439-448. DOI: 10.1016/j.funeco.2013.04.002. 

Frainer, A., McKie, B.G. and Malmqvist, B. (2013). When does diversity matter? Species functional diversity and ecosystem functioning across habitats and seasons in a field experiment. Journal  of Animal Ecology, doi: 10.1111/1365-2656.12142

Dinsmore, K.J., Wallin, M.B., Johnson, M.S., Billett, M.F., Bishop, K., Pumpanen, J. and Ojala, A. (2013) Contrasting CO2 concentration discharge dynamics in headwater streams: A multi-catchment comparison. Journal of Geophysical Research-Biogeosciences 118(2), 445-461.

Laudon, H., Taberman, Ågren, A., Futter, M., Ottosson-Löfvenius, M., and Bishop, K., (2013). The Krycklan Catchment Study - A flagship infrastructure for hydrology, biogeochemistry and climate research in the boreal landscape. Water Resources Research.

Schelker, J., Öhman, K., Löfgren, S. and Laudon, H (2014).Scaling of increased dissolved organic carbon inputs by forest clear-cutting - What arrives downstream? Journal of Hydrology, 508, 299–306

Carey, S.K., Tetzlaff, D., Buttle, J., Laudon, H., McDonnel, J.J., McGuire, K., Seibert, J., Soulsby, C., and Shanley, J. (2013). Use of color maps and wavelet coherence to discern seasonal and inter annual climate influences on streamflow variability in northern catchments. Water Resources Research, In press.

Schelker J., Grabs T., Bishop K. & Laudon H. Drivers of increased organic carbon concentrations in stream water following forest disturbance: Separating effects of changes in flow-pathways and soil warming. Journal of Geophysical Research G: Biogeosciences

Kuglerová, L., Jansson, R., Ågren, A., Laudon, H., and Malm-Renöfält, B. (2013) Groundwater discharge creates hotspots of riparian plant species richness in a boreal forest stream network, Ecology, In Press.

Sundman, Anneli, Karlsson, Torbjörn, Laudon, Hjalmar, Persson, Per, XAS study of iron speciation in soils and waters from a boreal catchment, Chemical Geology (2013), doi: 10.1016/j.chemgeo.2013.11.023

Neubauer, E., Kohler, S.J., von der Kammer, F., Laudon, H., and Hofmann, T. (2013) Effect of pH and stream order on Iron and Arsenic speciation in boreal catchments. Environmental Science and Technology, 47, 7120-7128, DOI: 10.1021/es401193j.

Ali, G., Tetzlaff, D., Kruitbos, L., Soulsby, C., Carey, S., McDonnell, J., Buttle, J., Laudon, H., Seibert, J., McGuire, K., and Shanley, J., (2013). Analysis of hydrological seasonality across northern catchments using monthly precipitation–runoff polygon metrics, Hydrological Sciences Journal, DOI: 10.1080/02626667.2013.822639.

Ledesma, J. L. J., Grabs, T., Futter, M. N., Bishop, K. H., Laudon, H. and Köhler, S. J. 2013. Riparian zone controls on base cation concentrations in boreal streams. Biogeosciences, 10, 3849-3868, DOI: 10.5194/bg-10-3849-2013.

Oni, S. K., Futter, M. N., Bishop, K., Köhler, S. J., Ottosson-Löfvenius, M., and Laudon, H. (2013). Long-term patterns in dissolved organic carbon, major elements and trace metals in boreal headwater catchments: trends, mechanisms and heterogeneity, Biogeosciences, 10, 2315-2330, doi:10.5194/bg-10-2315-2013.

Lidman, F., Ramebäck, H., Bengtsson, Å. and Laudon, H. (2013). Distribution and transport of radionuclides in a boreal mire – assessing past, present and future accumulation of uranium, thorium and radium, Journal of Environmental Radioactivity, doi:10.1016/j.jenvrad.2012.06.010.

Haei, M., Öquist, M. G., Kreyling, J., Ilstedt, U. and Laudon, H. (2013). Winter climate controls soil carbon dynamics during summer in boreal forests. Environmental Research Letters 8, 024017. doi:10.1088/1748-9326/8/2/0240.

Schelker, J., Kuglerová, L., Eklöf, K., Bishop, K. and Laudon H.  (2013). Hydrological effects of clear-cutting in a boreal forest – snowpack dynamics, snowmelt and streamflow responses, Journal of Hydrology, 484, 105-114.

Lucas, R.W., Sponseller, R.A., and Laudon, H. (2013). Controls over base cation concentrations in stream and river waters: A long-term analysis on the Role of deposition and climate, Ecosystems, 16, 707-721, DOI: 10.1007/s10021-013-9641-8.

Kreyling, J., Haei, M., and Laudon, H. (2013). Snow removal reduces annual cellulose decomposition in a riparian boreal forest, Canadian Journal of Soil Science, 93, 427-433.

Laudon, H., Tetzlaff, D., Soulsby, C., Carey, S., Seibert, J., Buttle, J., Shanley, J., McDonnell, J.J., and McGuire, K. (2013). Change in winter climate will affect dissolved organic carbon and water fluxes in mid- to high latitude catchment, Hydrological Processes, 700-709   DOI: 10.1002/hyp.9686.

Tetzlaff, D., Soulsby, C., Buttle, J., Capell, R., Carey, S.K., Kruitbos, L., Laudon, H., McDonnell, J., McGuire, K., Seibert, S., Shanley, J. (2013). Catchments on the Cusp? Structural and functional change in northern ecohydrological systems. Hydrological Processes, 766-774, DOI: 10.1002/hyp.9700.

Peichl, M., Sagerfors, J., Lindroth, A., Buffam, I., Grelle, A., Klemedtsson, L., Laudon, H. and Nilsson, M.B. (2013). Energy exchange and water budget partitioning in a boreal minerogenic mire. Journal of Geophysical Research-Biogeoscience, 118, 1-13   DOI: 10.1029/2012JG002073.

Wallin, M.B., Grabs, T., Buffam, I., Laudon, H., Ågren, A., Öquist, M.G., and Bishop, K., (2013). Evasion of CO2 from streams – The dominant component of the carbon export through the aquatic conduit in a boreal landscape. Global Change Biology, 785-797, DOI: 10.1111/gcb.12083.   

Laudon H. (Editor) (2013). Mark och vatten i framtidens skog. ISBN 978-91-576-9161-3. Future Forest rapport serie, 30 pg.








The Krycklan Catchment

Krycklan is a watershed located in the boreal region of northern Sweden in the county of Västerbotten. Krycklan is a tributary to the national River Vindelälven which starts in the mountain range, crosses Sweden and enters the Baltic Sea near Umeå.

Krycklan is a 6780 ha watershed catchment running through a mosaic of wetland and lakes that are interspersed throughout the forest landscape. The catchment area is partly located within the Svartberget experimental forests (in Swedish) which was established in 1920th by the Swedish forestry service and is today a unit of the Swedish University of Agricultural Science.

Krycklan History

Hydrology and biogeochemical cycling was initiated by Kaj Rosen and Harald Grip in the 1980´s and the monitoring of the 50 ha Nyänget catchment started.

During the 1990´s Nyänget contributed to the role of acid deposition on streams and Kevin Bishop and colleagues, opened for new views about anthropogenic acidification and natural acidity in boreal watersheds. This work has developed the present environmental guidelines for acidification in Sweden.

With time the scope of research has expanded to also include mercury, weathering, aluminum, carbon cycling and water uptake by trees. More intensive work also began on the connection between soils and surface waters which led to a more process-based understanding of the regulation of stream water chemistry.

Another still growing research topic is the influence of climate on biogeochemistry and aquatic ecology which led to the expansion of 50 ha Nyänget catchment to the 6780 ha Krycklan catchment Study. The expansion was launched during the winter 2002/2003 and several stream further down from the Nyänget catchment were added into the sampling program which then covered the size of regional landscape scale.

Another stream, located at the Degerö Stormyr (Kulbäcksliden) complex was also included in the program. Additional, new instruments and logger equipment were installed at the different streams. The expansion has opened for the opportunity to broadening both the fundamental research questions and the water management issues, questions both asked by governments and researches to be answered.

Being able to work with Krycklan at a landscape scale allows us to apply environmental problems and models used for water managements and aquatic ecosystems protections. Addressing such questions would not be possible with information from plots, hill slopes and small catchments. These examples of smaller scales are however very important for the fundamental research, issues also addressed within Krycklans smaller catchments, like Nyänget where 30 years of continually measured stream water data soon exists.


To date, several professors, researchers, assistant professors, almost 20 Ph.D, technicians, master students and field and lab assistants daily perform work connected to Krycklan.

The science taken place in Krycklan value the multidisciplinary approach which includes scale-dependent aspects but also bridge inferential gaps between varying catchment sizes, temporal dynamics, different landscape elements and the changes introduced by human perturbation.

Major science topics within the Krycklan Catchment Study

  • Connecting terrestrial and aquatic systems
  • Scaling from small to large streams
  • Human perturbation 

Krycklan makes it possible to understand key processes then used for building and developing models working at different scales

KSC achieves state-of-the-art research because of the ability to use this unique research platform that span trough traditional disciplinary boundaries and linkages of empirical and experimental results. This makes it possible to understand processes then used for building and developing models working at different scales. We are also able to evaluate the results to overcome gaps between over-parameterized mechanistic models and over-simplified correlative approaches.


Krycklan Symposium

On yearly basis all the Krycklan people gather around for a symposium. This is one excellent opportunity to understand the activities taking place in Krycklan and compared this to other studies.

12th Krycklan Symposium takes place on the 23th of September 2015.

See you all there!

Read the programs for: 2014   2013   2012   2011   2010


11th Krycklan symposium took place on October 1st in Umeå and those interested joined for an Krycklan exkursion the day after.

This year was dedicated to the Future Krycklan – Past, present and new research directions.

-       Krycklan talks

-       Poster session

-       Announcement of the spring flood bet winners

Read a summary of the sympsoium here 

11th Annual Krycklan Symposium (October 1-2)
Aulan, SLU, Umeå

09.30-10.00 Coffee

Krycklan: Looking ahead
10.00 - 10.20 Hjalmar Laudon – “Welcome to land of opportunity”
10.20 - 10.45 Claudia Teutschbein - "Climate Change Impact: Hydrological Responses in an Uncertain Future"
10.45 - 11.10 Matthias Peichl – “The carbon balance of the boreal landscape: Integrating terrestrial and aquatic fluxes to complete carbon budgets”
11.10 - 11.35 Marjolein Van Huijgevoort – “The VeWa project: Vegetation effects on water flow and mixing in high-latitude ecosystems.

11.35 - 13.00 Lunch (sign-up for free lunch at www.slu.se/Krycklan)

Afternoon session
13.00 – 13.25 Reinert Huseby Karlsen - “Landscape controls on specific discharge variability in Krycklan”
13.25 – 13.50 Erin Hotchkiss - “Linking stream metabolism with carbon fluxes in the Krycklan network“
13.50 – 14.15 Mark Blackbrun - ”Boreal Nitrogen: Understanding the loss via streams”
14.15 – 14.40 Ryan Burrows - “Spatial and temporal patterns of stream biofilm functioning and incidences of carbon and nutrient limitation”

14.40 - 15.10 Coffee

15.10 - 15.35 Dolly Kothawala - “Contrasting quality of DOM in boreal streams: The role of hydrology, landscape heterogeneity and scaling”
15.35 - 16.00 Lenka Kuglerová - “Towards optimizing riparian buffer zones”
16.00 – 16.25 Gesche Blume-Werry - “Long- and short term responses of roots to severe soil frost”

16.30 – 18.30 Poster session
Oct 2, 9.00 Field trip to Krycklan with a start at SLU.  


Over a decade of water science in Krycklan was celebrated during the 10th symposium on the 9th of October 2013.

What started more than 10 years ago with a little more than ten guests in “Vita Havet” was today a teeming lobby and auditorium with more than 100 guests.

Foto: Olof Bergvall, SLU

Hjalmar opened the day with some words about the latest progress made in Krycklan and finished off by officially ending the PhD course “Watershed Ecology and Biogeochemistry” which had taken place in Vindeln and started the week before. 29 students experienced the course together with the course leaders. There was also a reward for the winners of this year´s spring flood betting. Both course participants Lenka Kuglerová, guessing the closest flow rate for the peak, and Reinert Huseby Karlsen, guessing the closest date for the peak, were the winners of this year.

Foto: Olof Bergvall, SLU

The historical session before lunch was initiated by Kevin Bishop showing some nice work from the early stages of catchments studies in Svartberget and continued by Ishi Buffam. Ishi addressed the requirements and challenges to develop this catchment study at a larger landscape scale, and the sampling program we know today. Martyn Futter was honored to continue this development by talking about the possibilities to use Krycklan for modeling development and research.

Foto: Olof Bergvall, SLU

Anneli Ågren initiated the biogeochemical session in the boreal zone, showing her amazing GIS work of wet areas along the streams. Martin Berggren, nowadays working at Lund University talked about the fascination (or fear) for dark water. The limited amount of N present in this type of environment is truly a fascination for Ryan Sponseller. Mahsa Haei ended this session by summarizing the work conducted in the soil frost manipulation during ten years, with some focus on the latest vegetation studies.

Foto: Olof Bergvall, SLU

Karin Wiberg with colleges have recently installed passive samples for POPs and other substances in the ICOS tower located in Krycklan. She is very eager to start the collaboration with Martyn in developing a model of these substances in the catchment. Getting into more chemical details in Krycklan Stephan Köhler presented his work on metals.

The last but most honorable speaker of the day was Oleg Pokrovsky. Even if his work is not (yet) related to Krycklan he took us on a tour to three areas in Russia. Internal processes during lake formations, a large catchment study in eastern Russia and finally a river mouth in the western part.

Some of the guests joined for the field excursion the next day. Hjalmar showed and presented different catchments and installations. The group visited the dam-house on site 7 in the Svartberget catchment. Johannes Tiwari talked about the newly installed groundwater wells in the area and what expectations we have for those. The walk continued to the “S-transect” and Soil frost manipulation site before the visit continued to the ICOS-tower.

Foto: Anders Henriksson, SLU

Several guests had either heard a lot about Krycklan or ordered samples from the catchment. They very much appreciated the opportunity to visit the site.

Thanks to all participating in this event, it was great fun!


Program at the 10th Krycklan Sympsoum

Location: Aulan, SLU, Umeå

Oct 9,

Krycklan: Decades of research

Hjalmar Laudon Welcome to the land of opportunity

Kevin BishopWhere it all began!

Ishi Buffam – Boots on the ground, hands in the water – Krycklan up and running

Martyn Futter– Krycklan as a model platform

Section 2:

Anneli Ågren - Landscape analysis – a tool for predicting and preserving water quality

Martin Berggren - DOC cycling in stream and river networks: Microbial processes regulated by the catchment

Ryan Sponseller - Inorganic nitrogen losses from boreal lands: integrating forest dynamics, landscape heterogeneity, and hydrologic routing

Mahsa Haei – A decade of soil frost experiment- What have we learned?

Karin Wiberg - Transport and fate of organic pollutants in the Krycklan catchment.

Stephan Köhler - Do trace metals care about iron and aluminum in the Krycklan streams?

Oleg Pokrovsky (Fredrik Lidmans opponent) - Biogeochemistry of major and trace elements in watersheds of the Arctic Ocean basin: The change of fluxes, sources and mechanisms under the climate warming prospective

Oct 10, 9.00 Field trip to Krycklan with start at SLU, coffee and lunch is included.




9th Annual Krycklan Symposium (October 22)

During 2012´s Krycklan symposium we meet two researchers responsible for newly established field sites within the Krycklan catchment. In the different sections for the symposium we meet several PhD –students focusing on different topics, highly interested and especially for the future. Krycklan also had the honor of presenting two members of the USGS, Doug Burns and Jamie Shanley.

Krycklan: Land of opportunity

  • Welcome and a Krycklan update - Hjalmar Laudon
  • Lake Stortjärn: A long term site for biogeochemical research- Anki Bergström
  • Rosinedal; a new field site for advanced ecophysiological research – Torgny Näsholm

Section 1: Ecology and nitrogen in streams and riparian zone

  • Meta-community structure in a small boreal stream network - Emma Göthe
  • Effect of groundwater discharge on riparian vegetation - Lenka Kuglerova
  • Spatial and temporal patterns of N concentrations and export   – Mark Blackburn

Section 2: DOC dynamics and modeling

  • Can hysteresis in the stream DOC:discharge relation reveal DOC source in small  catchments? - Jamie Shanley
  • Downstream DOC - the sum of all contribution parts? – Tejshree Tiwari
  • Modelling DOC at Krycklan using INCA-C - Stephen Oni/Martyn Futter
  • Linking soil temperature and soil moisture changes after clear-cutting to increased DOC availability in soils – Jakob Schelker.

Section 3: Metals and pollutants

  • Base cations fluxes in a boreal catchment - integrating riparian and stream water chemistry - Jose Ledesma
  • Metal fluxes in the boreal landscape - the role of wetlands, hydrology and the affinity for organic matter - Fredrik Lidman.
  • Specific ultra-violet absorbance as an indicator of mercury sources in an Adirondack River basin - Doug Burns 


Krycklan: The land of opportunities

  •   “Welcome and a Krycklan update” - Hjalmar Laudon
  •    “ICOS (Integrated Carbon Observation System) under establishment at Degerö and Krycklan” - Mats Nilsson
  •    "Krycklan infrastructure, data collection and database” - Ida Taberman/Peder Blomkvist

 Carbon – importance of riparian soils and climatic control

  •  “Importance of winter climate and soil frost for dissolved organic carbon (DOC) in boreal forest soils and streams”- Mahsa Haei
  •  “Climatic control on DOC concentrations in a mire stream” - Anneli Ågren
  •  “The KRO – A strong test of the hypothesis of Riparian DOC control” – Kevin Bishop

Metals and other compounds

  •  “Riparian zone multi-element geochemistry in Krycklan” – Åsa Bengtsson
  •  Temporal and spatial variations of Aluminium, Iron and trace metal export in Krycklan” – Stefan Köhler
  • “Using FFF-ICPMS and SEC-ICPMS to characterize source areas of nanoparticle bound metals” – Elisabeth Neubauer

Hydrology and greenhouse gases

  • “Specific discharge variability in a boreal landscape” - Steve Lyon
  •  “Spatial patterns of hydrological isotopes during winter baseflow” – Andres Peralta
  • “Export of greenhouse gases across the soil/stream interface in a boreal headwater stream” - Mats Öquist 


Krycklan: The land of opportunities

  • "Welcome and a Krycklan update” - Hjalmar Laudon
  • “The Krycklan database – possibilities and availability” - Ida Taberman
  • "Climate downscaling and winter soil temperature" - Martyn Futter

Carbon, carbon quality and some new insights

  • “Acid/base character of streamwater DOC in different climatic zones” - Jakob Hruska
  • “How much carbon is exported by the Krycklan streams?” - Marcus Wallin
  • “Incorporating the role of stream ecosystem processes into models of watershed biogeochemistry” - Ryan Sponseller 

Bioavailability, metals and other compounds

  •  “Bioavailable phosphorus in forest and mire streams” - Mats Jansson
  • "Extended X-ray Absorption Fine Structure studies of iron in natural stream waters using a novel in-situ technique" - Anneli Sundman
  • “U-isotopes as a tracer for weathering, accumulation and groundwater flow” - Fredrik Lidman
  • “Fate of dioxins in a boreal forest catchment” - Magnus Bergknut

Weathering, Landscape pattern and some modeling

  • “Weathering in Krycklan catchment: uncertainties and processes” - Jonatan Klaminder
  • “Modeling rating curves using remotely-sensed LiDAR data” - Marcus Nathansson
  • "Detecting soft soil in the Krycklan catchment area” - Jeanette Edlund
  • “On forest management planning and stream water quality” - Tomas Lämås


Collaborations and networks

KSC is a key for collaborations, the advantage is to apply Krycklan as a unique experimental platform for testing scientific and practical research questions in a natural environment.

Already initiated collaboration will launch modeling tools that will help predict the effects of human perturbations, such as those caused by forestry, climate change and long-range transport of air pollutants, along with forest biodiversity, forest economy optimization and water quality in forestry practice.

Krycklan is located within the SLU unit for field based research Svartberget

Svartberget and hence Krycklan is part of the Swedish Research infrastructure for Ecosystem Science 'SITES' 

277 Balsjö










Newsletter and other mediums

Krycklan news, December 2015

Krycklan news, September 2015

Krycklan news, May 2015

Krycklan news, January 2015 Opens in new window

Krycklan news, December 2014

Krycklan news, May 2014

Krycklan news, December 2013

Krycklan news, September 2013

Krycklan news June 2013

Krycklan in other mediums

Krycklan in Swedish national radio

In Swedish (7:30 into the broadcast). Lenka Kuglerova talks about her recently accepted article Groundwater discharge creates hotspots of riparian plant species richness in a boreal forest stream network. Kuglerová, L., Jansson, R., Ågren, A., Laudon, H., Malm-Renöfält, B. . Ecology. 2014. http://www.esajournals.org/doi/full/10.1890/13-0363.1

Future Forests magazine

Future Forests Magazine is a new publication aimed at international researchers. The magazine provides a glimpse into the largest-ever research project on the theme of forest and sustainability in Sweden. Future Forest magazine 2013

Press release of Fredrik Lidmans PhD thesis gained interest from the local news stations.

Read more about the press release (in Swedish)

In the local news paper Västerbottens Kuriren (in Swedish)

At the local radio station in their morning program (in Swedish)

Page updated: 2015-12-22. Page editor: Ida.Taberman@slu.se

Department of forest ecology and management, SLU, Skogsmarksgränd SE 90183 Umeå, Sweden  • +46 90 786 83 85  •  sfak@slu.se • Internwebb