My research focus on biogeochemical and hydrological processes in the boreal forest landscape. I am especially interested in how processes in smaller landscape units scale up to hydrological and biogeochemical signals at a landscape scale. To fulfill my research objectives I am leading one of the most ambitious contemporary research projects on hydrology, biogeochemistry and stream ecology, Krycklan Catchment Study (KCS). The objective of this work is to understand and model how natural processes control water quality across spatial and temporal scales and how this could be affected by land-use and climate change.

• 2011
• 2010
• 2009
• 2008
• 2007
• 2006 and earlier

Peer-reviewed publications

2011

Egnell, G., Laudon, H., and Rosvall, O. (2011). Perspectives on the Potential Contribution of Swedish Forests to Renewable Energy Targets in Europe, Forests, 2, 578-589; doi:10.3390/f2020578.

Lucas, R.W., Klaminder, J., Futter, M.N., Bishop, K.H. Egnell, G. Laudon, H. Högberg, P. (2011) A meta-analysis of the effects of nitrogen additions on base cations: Implications for plants, soils, and streams. Forest Ecology and Management. DOI: 10.1016/j.foreco.2011.03.018.

Futter, M.N., Keskitalo, E.C.H., Ellison, D., Pettersson, M., Strom, A., Andersson, E., Nordin, J., Löfgren, S., Bishop, K., and Laudon, H., (2011) Forests, Forestry and the Water Framework Directive in Sweden: A Trans-Disciplinary Commentary. Forests 2011, 2, 261-282; doi:10.3390/f2010261.

Haei, M., Rousk, J., Ilstedt, U., Öquist, M., Bååth, E., and Laudon, H. (2011). Effects of soil frost on growth, composition and respiration of the soil microbial decomposer community (In press). Soil Biology and Biogeochemistry.

Bergknut, M., Laudon, H., Jansson, S., Larson, A., Gocht, T. and Wiberg, K. (2011). Atmospheric deposition and retention of dioxins and PCBs in a pristine boreal catchment. Environmental Pollution, 159, 1592-1598.

Lidman, F., Björkvald, L., Mörth, C-M, and Laudon, H. (2011). Selenium dynamics in boreal streams: The role of wetlands and changing groundwater tables. Environmental Science and Technology, 45, 2677-2683.

Laudon, H., Berggren, M., Ågren, A., Buffam, I., Bishop, K., Grabs, T., Jansson, M., Köhler, S. (2011). Patterns and dynamics of Dissolved Organic Carbon (DOC) in boreal streams: The role of processes, connectivity, and scaling. Ecosystems. DOI: 10.1007/s10021-011-9452-8.

Laudon, H., Sponseller, R.A., Lucas, R.W., Futter, M.N., Egnell, G., Bishop, K., Ågren, A., Ring, E., and Högberg, P. (2011). Consequences of More Intensive Forestry for the Sustainable Management of Forest Soils and Waters, Forests 2(1), 243-260; doi:10.3390/f2010243.

Schelker, J., Burns, D. A., Weiler, M. and Laudon, H. (2011), Hydrological mobilization of mercury and dissolved organic carbon in a snow‐dominated, forested watershed: Conceptualization and modeling, J. Geophys. Res., 116, G01002, doi:10.1029/2010JG001330.

Klaminder, J., Grip, H., Mörth, CM and Laudon, H (2011). Carbon mineralization and pyrite oxidation in groundwater: importance for silicate weathering in boreal forest soils and stream base-flow chemistry, Applied Geochemistry, In press.

Lyon, S.W., Grabs, T., Laudon, H., Bishop, K.H., and Seibert, J. (2011). Variability of groundwater levels and total organic carbon (TOC) in the riparian zone of a boreal catchment, Journal of Geophysical Research-Biogeoscience, 116, G01020, doi:10.1029/2010JG001452.

Haei M., Öquist M. G., Ilstedt U. and Laudon H., (2011). The influence of soil frost on the quality of dissolved organic carbon in a boreal forest soil - combining field and laboratory experiments, Biogeochemistry, DOI: 10.1007/s10533-010-9534-2.

Klaminder, J., Lucas, R.W., Futter, M.N., Bishop, K., Köhler, S.J., Egnell, G. and Laudon, H. (2011). Silicate mineral weathering rate estimates: Are they precise enough to be useful when predicting the recovery of nutrient pools after harvesting? Forest Ecology and Management, 261, 1–9.

2010

Carey, S.K., Tetzlaff, D., Seibert, J., Soulsby, C., Buttle, J., Laudon, H., McDonnell, J., McGuire, K., Caissie, D., Shanley, J., Kennedy, M., Devito, K., and Pomeroy, J.W. (2010). Inter-comparison of hydro-climatic regimes across northern catchments: synchronicity, resistance and resilience. Hydrological Processes. DOI: 10.1002/hyp.7880.

Laudon, H. and Norton, S.A., (2010). Drivers and evolution of episodic acidification at the Bear Brook Watershed in Maine, US.  Environ Monit Assess (2010) 171:59–69. DOI 10.1007/s10661-010-1526-0.

Berggren M. Laudon H. Jonsson A. & Jansson M. (2010) Nutrient constraints on metabolism affect the temperature regulation of aquatic bacterial growth efficiency. Microbial Ecology 60 (4): 894–902, DOI 10.1007/s00248-010-9751-1

Erlandsson, M., Laudon, H., and Fölster, J. (2010). Spatiotemporal patterns of drivers of episodic acidification in Swedish streams and their relationships to hydrometeorological factors. Science of the Total Environment, 408, 4633-4643.

Haei M., Öquist M. G., Ilstedt U. and Laudon H., The influence of soil frost on the quality of dissolved organic carbon in a boreal forest soil - combining field and laboratory experiments, Biogeochemistry, DOI: 10.1007/s10533-010-9534-2.

Ågren, A., Haei, M., Köhler, S.J., Bishop, K., and Laudon, H. (2010). Regulation of stream water dissolved organic carbon (DOC) concentrations during snowmelt; the role of discharge, winter climate and memory effects. Biogeosciences, 7, 2901-2913.

Bergknut, M., Meijer, S., Halsall, C., Agren, A., Laudon, H., Kohler, S., Jones, K.C., Tysklind, M., Wiberg, K. (2010) Modelling the fate of hydrophobic organic contaminants in a boreal forest catchment: A cross disciplinary approach to assessing diffuse pollution to surface waters. Environmental Pollution, 158, 2964-2969.

Omstedt, A., Edman, M., Anderson, L.G., and Laudon, H. (2010) Factors influencing the acid-base (pH) balance in the Baltic Sea: a sensitivity analysis. Tellus series B-Chemical and Physical Meteorology, 62, 280-295.

Tetzlaff, D., Carey, S.K., Laudon, H., and McGuire, K. (2010). Catchment processes and heterogeneity at multiple scales-benchmarking observations, conceptualization and prediction, Hydrological Processes, 24, 2203-2208.

Ågren, A., Buffam, I., Bishop, K., and Laudon, H. (2010) Sensitivity of pH in a boreal stream network to a potential decrease in base cations caused by forest harvest. Canadian Journal of Fisheries and Aquatic Sciences 67, 1116-1125.

Bergknut, M., Laudon, H., Wiberg, K. (2010) Dioxins, PCBs, and HCB in soil and peat profiles from a pristine boreal catchment, Environmental Pollution, 158, 2518-2525.

Haei, M., Öquist, M.G., Buffam, I., Ågren, A., Blomkvist, P., Bishop, K., Ottosson Löfvenius, M. & Laudon, H (2010). Cold winter soils enhance dissolved organic carbon concentrations in soil and stream water. Geophysical Research Letters, 37, L08501, doi: 10.1029/2010GL042821.

Berggren M., Ström L., Laudon H., Karlsson, J., Jonsson, A., Giesler, R., Bergström, AK & Jansson M. (2010). Lake secondary production fueled by rapid transfer of low molecular weight organic carbon from terrestrial sources to aquatic consumers. Ecology Letters, In press.

Temnerud, J.,Fölster. J., Buffam,I., Laudon,H., Erlandsson, M.& Bishop, K. (2010). Can the distribution of headwater stream chemistry be predicted from downstream observations? Hydrological Processes, DOI: 10.1002/hyp.7615.

Ågren, A., I. Buffam, K. Bishop, and Laudon, H. (2010) Modeling stream dissolved organic carbon concentrations during spring flood in the boreal forest: A simple empirical approach for regional predictions, Journal of Geophysical Research-Biogeoscience doi:10.1029/2009JG001013.

Wallin, M. Buffam, I., Öquist, M., Laudon, H. and Bishop, K. (2010) Temporal and spatial variability of dissolved inorganic carbon in a boreal stream network – concentrations and downstream fluxes, Journal of Geophysical Research-Biogeoscience 2009JG001100

Haaland, S., Hongve, D., Laudon, H., Riise, G., Vogt, R.D. (2010) Quantifying the Drivers of the Increasing Colored Organic Matter in Boreal Surface Waters, Environmental Science and Technology, 44, 2975-2980.

Lyon, S.W., Laudon, H., Seibert, J. Mörth, C.M., Tetzlaff, D., and Bishop, K. (2010).  Controls on snowmelt water mean transit times in northern boreal catchments. Hydrological Processes, DOI: 10.1002/hyp.7577.

Berggren M., Laudon H., Haei M., Ström L. & Jansson M. (2010). Efficient aquatic bacterial metabolism of dissolved low molecular weight compounds from terrestrial sources. Isme Journal, 4, 408-416.

2009

Seibert, J., Grabs, T., Köhler, S., Laudon, H., Winterdahl, M. and Bishop, K. (2009), Linking soil- and stream-water chemistry based on a Riparian Flow-Concentration Integration Model, Hydrology and Earth Science Systems, 13, 2287-2297

Öquist, M.G., Wallin, M., Seibert, J., Bishop, K. and Laudon, H. (2009). Dissolved Inorganic Carbon Export Across the Soil/Stream Interface and Its Fate in a Boreal Headwater Stream, Environmental Science and Technology, 43, 7364-7369.

Berggren, M., Laudon, H. and Jansson, M. (2009). Aging of allochthonous organic carbon regulates bacterial production in unproductive boreal lakes. Limnology and Oceanography, 54, 1333-1342.

Björkvald, L. Gisler, R., Laudon H., Humborg, C and Mörth, CM. (2009). Landscape variations in stream water SO4 and d34S in a boreal stream network. Geochimica et Cosmochimica Acta, 73, 4648-4660.

Grabs, T., Seibert, J. Bishop, K. and Laudon, H. (2009). Modeling spatial patterns of saturated areas: A comparison of the topographic wetness index and a dynamic distributed model. Journal of Hydrology, 373, 15-23.

Cory, N., Buffam, I., Laudon, H., Björkvald, L. Mörth, C.M., Köhler. S., and Bishop, K. (2009). Particulate aluminium in boreal streams: Towards a better understanding of its sources and influence on dissolved aluminium speciation. Applied Geochemistry, 24, 1677-1685.

Laudon, H., Hedtjärn, J. Schelker, J., Bishop, K., Sørensen, R., and Ågren, A. (2009). Response of dissolved organic carbon (DOC) following forest harvesting in a boreal forest. Ambio, 7, 381-386.

Öhman, K., Seibert, J. and Laudon, H. (2009). An approach for including consideration of stream water dissolved organic carbon in long term forest planning. Ambio. 7, 387-393.

Sørensen, R., Ring, E., Meili. M., Högbom, L., Seibert, J., Grabs, T., Laudon, H. and Bishop, K. (2009). Forest harvest increases runoff most during low flows in two boreal streams. Ambio, 7, 357- 363.

Tetzlaff, D., Seibert, J., McGuire, K.J., Laudon, H., Burn, D. A., Dunn, S. M., and Soulsby, C.  (2009). How does landscape structure influence catchment transit time across different geomorphic provinces? Hydrological Processes, 23, 945-953.

Giesler R, Björkvald L, Laudon H, and Mörth CM (2009) Spatial and Seasonal Variations in Stream Water delta S-34-Dissolved Organic Matter in Northern Sweden Source. Environmental Science and Technology, 43, 447-452.   Click here for a PDF

Berggren, M., Laudon, H. and Jansson, M. (2009). Hydrological control of organic carbon support for bacterial growth in boreal headwater streams. Microbial Ecology. 57, 170-178.

2008

Erlandsson, M., Fölster, J., Laudon, H., Weyhenmeyer, GA., Bishop, K. (2008) Natural variability in lake pH on seasonal, interannual and decadal time scales: Implications for assessment of human impact. Environmental Science and Technology, 42, 5594-5599.  Click here for a PDF

Ågren A., Buffam I., Berggren M., Bishop K., Jansson M. and H. Laudon. (2008). Dissolved organic carbon characteristics in boreal streams in a forest-wetland gradient during the transition between winter and summer. Geophysical Research-Biogeosciences, 113, G03031, doi:10.1029/2007JG000674.  Click here for a PDF

Soulsby, C., Neal, C., Laudon, H., Burns, D.A., Merot, P., Bonell, M., Dunn, S.M. and Tetzlaff, D. (2008). Catchment scale conceptualisation and data collection. Hydrological Processes, 22, 2057-2061 DOI: 10.1002/hyp.7068.  Click here for a PDF

Yurova, A., Sirin, A., Buffam, I., Bishop, K., and Laudon, H. (2008).Modeling the DOC output from a boreal mire using the convection dispersion equation: The importance of representing sorption. Water Resources Research, 44, W07411, doi:10.1029/2007WR006523.  Click here for a PDF

Björkvald, L. Buffam, I., Laudon H. and Mörth, CM. (2008). Hydrogeochemistry of Fe and Mn in small boreal catchments: The role of seasonality, landscape type and scale. Geochimica et Cosmochimica Acta,72, 2789-2804.  Click here for a PDF

Nilsson, M., Sagerfors, J., Buffam, I, Laudon, H., Eriksson, T. Grelle, A., Klemedtsson, L. Weslien, P. and Linderoth, A. (2008). A. Complete carbon budgets for two years of a boreal oligotrophic minerogenic mire. Global Change Biology, 14, 1-16, doi: 10.1111/j.1365-2486.2008.01654.x.  Click here for a PDF

Köhler, S.J., Buffam, I., Laudon, H. and Bishop, K. (2008). Intra- and interannual variability of total organic carbon in two contrasting boreal landscape elements. Geophysical Research-Biogeosciences, 113, G03012, doi:10.1029/2007JG000629.  Click here for a PDF

Buffam, I., Laudon, H., Seibert, J., Mörth, CM, Bishop, K. (2008). Spatial heterogeneity of the spring flood acid pulse in a boreal stream network, The Science of Total Environment, 407, 708-722.   Click here for a PDF

Bishop, K., Buffam, H., Erlandsson, M., Fölster, J., Laudon, H., and Temnerud, J. (2008). Aqua Incognita: The Unknown Headwaters, Hydrological Processes, 22, 1239-1242.  Click here for a PDF

Öquist, M.G. and Laudon, H. (2008). Winter soil-frost conditions in boreal forests control growing season soil CO2 concentration and its atmospheric exchange, Global Change Biology, 14, 1-9 doi: 10.1111/j.1365-2486.2008.01669.x.  Click here for a PDF

Forsum, Å., Laudon, H. and Nordin, A. (2008). Nitrogen uptake by Hylocomium splendens during snowmelt in a boreal forest. Ecoscience, 15, 315-319.  Click here for a PDF

Ågren A., Berggren M., Laudon H. and M. Jansson. (2008). Terrestrial export of highly bioavailable carbon from small boreal catchments during spring flood. Freshwater Biology, 53, 964-972.  Click here for a PDF

Serrano, I, Buffam, I., Palm, D., Brännäs, E. and Laudon, H. (2008). Thresholds for survival of brown trout (Salmo trutta) embryos and juveniles during the spring flood acid pulse in DOC-rich streams. Transactions of the American Fisheries Society, 137, 1363-1377.  Click here for a PDF

Petrin, Z., Laudon, H. and Malmqvist, B. (2008). Diverging effects of anthropogenic acidification and natural acidity on community structure in Swedish streams, The Science of Total Environment, 394, 321-330.  Click here for a PDF

Erlandsson, M., Buffam, I., Fölster, J., Laudon, H., Temnerud, J., Weyhenmeyer, G.A., and Bishop, K. (2008). 35 years of synchrony in riverine organic matter concentrations explained by variation in flow and sulphate, Global Change Biology, doi: 10.1111/j.1365-2486.2008.01551.  Click here for a PDF

Laudon, H. and Buffam, I. (2008). Impact of changing DOC concentrations on the potential distribution of acid sensitive biota in a boreal stream network, Hydrology and Earth System Science, 12, 425-435.   Click here for a PDF

Laudon, H. (2008). Recovery from episodic acidification delayed by drought and high sea salt deposition, Hydrology and Earth System Science, 12, 363-370.  Click here for a PDF

Clair, T.A., Dennis, I.F., Vet, R. and Laudon, H. (2008). Long-term decreases in catchment organic carbon and nitrogen exports from three acidified catchment in Nova Scotia, Canada, Biogeochemistry, 87, 83-87.  Click here for a PDF

Mörth, C.M., Laudon, H., Mellqvist, E., Torssander, P. and Giesler, R. (2008). Sources of stream water sulfate during the spring snowmelt in boreal streams: evidence from stable δ34S isotope measurements. Journal of Geophysical Research-Biogeosciences, doi:10.1029/2007JG000457.  Click here for a PDF

2007

Berggren, M., Laudon, H. and Jansson, M. (2007). Growth and respiration of freshwater bacteria on organic carbon from different terrestrial sources. Global Biogeochemical Cycles, 21 (4): doi:10.1029/2006GB002844.  Click here for a PDF

Cory, N., Laudon, H., Köhler, S., Seibert, J, and Bishop, K. (2007). The evolution of soil solution Aluminum during transport along a forested boreal hillslope. Journal of Geophysical Research-Biogeosciences, 112, doi:10.1029/2006JG000387.  Click here for a PDF

Petrin, Z. McKie, B., Buffam, I., Laudon, H.  and Malmqvist, B. (2007) Landscape-controlled chemistry variation affects communities and ecosystem function in head-water streams. Canadian Journal of Fisheries and Aquatic Sciences, 64, 1563-1572.  Click here for a PDF

Bergvall, M., Grip, H. Sjöström, J. and Laudon, H. (2007). Contaminant transport in a municipal drinking water supply: a stationary approach to estimate rate and uncertainty, Ambio. 36, 512-519.  Click here for a PDF

Laudon, H., Sjöblom, V., Buffam, I., Seibert, J. and Mörth, CM. (2007). The role of catchment scale and landscape characteristics for runoff generation of boreal streams. Journal of Hydrology, 344, 198-209.  Click here for a PDF

Petrin, Z., Laudon, H. and Malmqvist, B. (2007). Does freshwater macroinvertebrate diversity along a pH-gradient reflect adaptation to low pH? Freshwater Biology, 52, 2172-2183.  Click here for a PDF

Ågren, A., Buffam, I. Jansson, M., Laudon, H. (2007). Importance of seasonality and small streams for the landscape regulation of DOC export. Journal of Geophysical Research-Biogeosciences, 112, G03003, doi:10.1029/2006 JG000381.  Click here for a PDF

Mellander, P.E., Ottosson, M. and Laudon, H. (2007).  Climate change impact on snow and soil temperature in boreal Scots pine stands, Climatic Change, DOI 10.1007/s10584-007-9254-3.  Click here for a PDF

Petrone, K., Buffam, I. and Laudon, H. (2007). Hydrologic and biotic control of nitrogen export during snowmelt: a combined conservative and reactive tracer approach. Water Resources Research, 43, W06420, doi:10.1029/2006 WR005286.  Click here for a PDF

Fölster, J., Andrén, C., Bishop, K., Buffam, I., Cory, N., Goedkoop, W., Holmgren, K., Johnson, R., Laudon, H. and Wilander, A. (2007). New Environmental Quality Criteria for acidification in lakes in Sweden - an application of studies on the relationship between biota and water chemistry. Water, Air and Soil Pollution: Focus, 7:331-338.  Click here for a PDF

Buffam, I., Laudon, H., Temnerud, J., Mörth, CM, Bishop, K. (2007). Landscape-scale variability of acidity and dissolved organic carbon during spring flood in a boreal stream network. Journal of Geophysical Research-Biogeosciences, 112, G01022, doi:10.1029/2006JG000218.  Click here for a PDF

Jansson, R., Laudon, H., Johansson, E. and Augspurger, C. (2007). The importance of groundwater discharge for plant species richness in riparian zones. Ecology, 88, 131-139.  Click here for a PDF

2006 and earlier

Klaminder, J., Bindler, R., Laudon, H., Emteryd, O. and Renberg, I. (2006). Flux rates of atmospheric lead pollution within soils from a small catchment in northern Sweden and their implication for future stream water quality, Environmental Science and Technology, 40, 4639-4645.  Click here for a PDF

Cory, N., Buffam, I., Laudon, H., Köhler, S. and Bishop, H. (2006) Landscape control of stream water Aluminium in a boreal catchment during spring flood, Environmental Science and Technology, 40, 3494-3500.  Click here for a PDF

Skjelkvåle, B., Ahrne, J., Bergman, T. Bishop, K., Forsius, M., Forsström, L, Gashkin, N.A., Hettelingh, J-P., Jeffries, D. Kaste, O, Korhola, A., Lappalainen, A. Laudon, H., Mannio, J., Moiseenko, T., Nyman, M., Posch, M. Schartau, A.K., Stoddard, J. Tammi, J., Vuorenmaa, J., Wilander, A., and Yakolev, V. (2006) Effects on Freshwater Ecosystems, In AMAP Assessment, Acidifying Pollutants, Arctic Haze, and Acidification in the Arctic 2006. (Peer-reviewed).

Öhman, J, Buffam, I, Englund, G, Blom, A, Lindgren, E and Laudon, H. (2006) Associations between water chemistry and fish species distribution - a comparison between isolated and connected lakes in northern Sweden. Freshwater Biology. doi:10.1111/j.1365-2427.2006.01514.  Click here for a PDF

Laudon, H., Hruška, J., Köhler, S. and Krám, P. (2005) Retrospective analyses future predictions of episodic acidification: Example from a heavily impacted stream in the Czech Republic. Environmental Science and Technology, DOI: 10.1021/es0481575.  Click here for a PDF

Mellander, P.E., Laudon, H. and Bishop, K. (2005) On predicting spatial and inter-annual variability of snow depths and soil temperature in boreal Scots pine stands. Agricultural and Forest Meteorology, 133, 109-118.  Click here for a PDF

Laudon, H., Vøllestad, L. A., and Poléo, A.B.S., and Bishop, K. (2005). Aluminum toxicity to brown trout during spring flood in DOC-rich streams of northern Sweden: The effect of present and modeled pre-industrial water quality. Environmental Pollution. 135, 121-130.  Click here for a PDF

Laudon, H., Dillon, P. J., Eimers, M.C., Semkin R.G. and Jeffries, D. S. (2004). Drought induced episodic acidification in Central Ontario. Environmental Science and Technology, 38, 6009-6015.  Click here for a PDF

Laudon, H., Köhler, S., Seibert, J. and Bishop, H. (2004). Hydrological flow paths during the spring flood: Congruence between hydrometric measurements and oxygen-18 in snow melt, soil water, and runoff, Water Resources Research. 40 (3), W03102  10.1029/2003WR002455.  Click here for a PDF

Laudon, H., Köhler, S. and Buffam, I. (2004). Seasonal dependency in DOC export from seven boreal catchments in northern Sweden. Aquatic Sciences. 66, 223-230.  Click here for a PDF

Laudon, H., Westling, O., Bergkvist, A. and Bishop, K. (2004). Episodic acidification in northern Sweden: An assessment of the anthropogenic component. Journal of Hydrology. 297, 162-173.  Click here for a PDF

Bishop, H., Seibert, J., Köhler, S and Laudon, H. (2004). Resolving the Double Paradox of rapidly mobilized old water with highly variable responses in runoff chemistry. Hydrological Processes. 18, 185-189.  Click here for a PDF

Dangles, O., Malmqvist, B. and Laudon, H. (2004). Naturally acid freshwater ecosystems are diverse and functional: evidence from boreal streams. Oikos. 104, 149-155. Click here for a PDF

Hruška, J., Köhler, S., Laudon, H. and Bishop, K. (2003). Is a universal model of organic acidity possible: Comparison of the acid/base character of organic acids in the boreal and temperate zones. Environmental Science and Technology. 37, 1726-1730.  Click here for a PDF

Laudon, H, Hemond, H. F., Krouse, R. and Bishop, K. (2002). Oxygen 18 fractionation during snowmelt: Implications for spring flood hydrograph separation. Water Resources Research, 38 (11).  Click here for a PDF

Laudon, H. and Bishop, K. (2002). The Rapid and Extensive Recovery from Episodic Acidification in Northern Sweden Due to Declines in SO42- Deposition. Geophysical Research Letters, 29, no 1594.  Click here for a PDF

Laudon, H. and Hemond, H. F. (2002). Recovery of streams from episodic acidification in northern Sweden. Environmental Science & Technology, 36, 921-928.  Click here for a PDF

Laudon, H., Clair, T. A. and Hemond, H. F. (2002). Long-term response in episodic acidification to declining SO42- deposition in two streams in Nova Scotia. Hydrology and Earth System Science, 6, 773-782.  Click here for a PDF

Laudon, H. and Bishop, K. (2002). Episodic stream water pH decline during autumn storms following a summer drought in northern Sweden. Hydrological Processes, 16, 1725-1733.  Click here for a PDF

Kram, P., Laudon, H., Bishop, K., Rapp, L. & Hruška, J. (2001). Magic modeling of long-term lake water and soil chemistry at Abborrträsket, Northern Sweden. Water, Air and Soil Pollution, 130, 130-1306.  Click here for a PDF

Bishop, K., Laudon, H., Hruška, J., Kram, P., Köhler, S. and Löfgren, S. (2001). Does acidification policy follow research in northern Sweden? The case of natural acidity during the 1990's. Water, Air and Soil Pollution, 130, 1415-1420.  Click here for a PDF

Laudon, H., Westling, O., Löfgren, S. & Bishop, K. (2001). Modelling preindustrial ANC and pH during spring flood in Northern Sweden. Biogeochemistry, 54, 171-195.  Click here for a PDF

Laudon, H., Westling, O., Vøllestad, L. A., & Poléo, A.B.S. (2001). Naturligt sura och försurade vatten i Norrland (In Swedish with english summary) Swedish environmental protection agency report 5144, Stockholm. (Peer-reviewed).  Click here for a PDF

Hruška, J., Laudon, H., Johnson, C. E., Köhler, S. and Bishop, K. (2001). Acid/base character of organic acids in boreal stream during snowmelt. Water Resources Research, 37, 1043-1055.  Click here for a PDF

Laudon, H., Westling, O. and Bishop, K. (2000). Cause of pH decline in stream water during spring  melt runoff in northern Sweden. Canadian Journal of Fisheries and Aquatic Sciences, 57, 1888-1900.  Click here for a PDF

Bishop, K., Laudon, H. and Köhler, S. (2000). Separating the natural and anthropogenic components of spring flood pH decline: A method for areas that are not chronically acidified. Water Resources Research, 31, 1873-1889.  Click here for a PDF

Köhler, S., Laudon, H. Wilander, A, and Bishop, K. (2000). Estimating organic acids dissociation in natural surface water using total alkalinity and TOC. Water Research, 34, 1425-1434.   Click here for a PDF

Stepanauskas, R., Laudon, H., and Jørgensen, N. (2000). High DON bioavailability in boreal rivers during spring flood. Limnology and Oceanography, 45, 1298-1307.  Click here for a PDF

Laudon, H and Bishop, K. (1999). Quantifying sources of ANC depression during spring flood in northern Sweden, Environmental Pollution, 105, 427-455.  Click here for a PDF

Laudon, H., Köhler, S. and Bishop, K. (1999). Natural acidity or anthropogenic acidification in spring flood of northern Sweden, Science of the Total Environment, 234, 63-73.  Click here for a PDF

Laudon, H. and Slaymaker, O. (1997). Hydrograph separation using stable isotopes, silica and electrical conductivity: an alpine example. Journal of Hydrology, 201, 82-101.  Click here for a PDF

Technical and other reports

Lidman, F., Laudon, H., Björkvald, L. and Mörth, CM. (2008).Transport of Selenium in the Boreal Landscape; Preliminary Results from the Krycklan Catchment Study, Report to SKB, 16 pp.

Grabs, T, Seibert, J. and Laudon, H. (2007). Distributed runoff modeling; Wetland runoff and its importance for spring-flood predictions, Elforsk rapport, 59 pp.

Westling, O and Laudon, H. (2007). Försurningsepisoder i norra Sverige, IVL, B-rapport, 16 pp.

Clair, T.A., Laudon, H., Vet, R. (2005). Ion export trends and budgets in acidified, marine-influenced Nova Scotian catchments (interim report). Environment Canada-Atlantic Region, Occasional Report No. 26, Environment Canada, Sackville, NB, 39 pp.

Serrano. I., Buffam, I. and Laudon, H. (2005). Critical acidity values for fish communities in Swedish watercourses - Evaluation of the one-point episode model (1PM), Environmental Quality Criteria Report - Rivers 2005:6, Naturvårdsverket, 13 pp.

Serrano. I., Buffam, I. and Laudon, H. (2005). Defining sampling intervals to accurately characterize the acid-base status of surface watercourses, Environmental Quality Criteria Report - Rivers 2005:5, Naturvårdsverket, 18 pp.

Buffam, I., Bishop, K. and Laudon, H. (2005). Development of an empirical model to predict pH in streams during spring flood in northern Sweden, Environmental Quality Criteria Report - Rivers 2005: 4, , Naturvårdsverket, 30 pp.

Buffam, I., Bishop, K. and Laudon, H. (2005). Development of an empirical model to predict DOC concentration in streams during spring flood in Northern Sweden, Environmental Quality Criteria Report - Rivers 2005: 1, Naturvårdsverket, 22 pp.

Bishop, K., Buffam, I., Fölster, J., Laudon, H. and Temnerud, J. (2005). Spatial variability and the assessment of forest streams, Department of Environmental Assessment, SLU, Report 2005:9

Löfgren, S and Laudon, H. (2004). Surstötar i norra Dalarna, 1994-2002, Länsstyrelsen Dalarnas län, rapport 2004: 7, 41 pp.

Laudon, H., Serrano, I., Petrin, Z., Persson, P. and Buffam, I. (2004). Chemical thresholds for aquatic organisms in boreal streams during spring flood - The Krycklan catchment study, Environmental Quality Criteria Report - Rivers 2004: 1, Naturvårdsverket, 19 pp.

Buffam, I., Laudon, H., and Holmgren, K. (2004). A statistical analysis of the relationship between fish populations and chemical acidity status in Swedish lakes, Environmental Quality Criteria Report - Lakes 2004: 1, Naturvårdsverket, 17 pp.

Laudon, H. and Westling, O. (2003). Surstötar i södra Sverige: frekvens och omfattning. Episode project report 2003: 1, Naturvårdsverket, 11 pp.

Laudon, H. (2003) Känslighetsanalys av episodmodellen, Episode project report 2003: 1, Naturvårdsverket, 13 pp.

Laudon, H. (2002). Vidareutveckling av episodmodellen; Episode project report 2002: 1, Naturvårdsverket, 27 pp.

Laudon, H. (2001). Regional bedömning av försurning i norra Sverige; Episode project report 2001: 1, Naturvårdsverket, 17 pp.

Laudon, H. (2000). Separating Natural Acidity from Anthropogenic Acidification in the Spring Flood of Northern Sweden, Ph. D. thesis. Silvestria 160, Swedish University of Agricultural Science

Laudon, H. and Bishop, K. (2000). Anpassning av episodmodellen till kalkade vatten; Episode project report 2000: 1, Naturvårdsverket, 10 pp.

Laudon, H. (1999). Spring Flood pH Decline in Northern Sweden: Towards an Operational Model for Separating Natural Acidity from Anthropogenic Acidification. nr 49. SLU, SE- 901 83 Umeå. ISSN 1401-1870.

Laudon, H. and Bishop, K. (1997). Identification of sources leading to episodic stream acidification in northern Sweden. Acid Rain and Snow, 575-581.

Laudon, H (1995). Spatial and temporal variability of the stream water chemistry of an alpine/sub-alpine catchment, in the Coast Mountains of British Columbia, M.Sc. University of British Columbia, Canada, 83 pp.

Popular science publications

Mellander, PE., Laudon, H. & Ottosson Löfvenius, M  (2006) Snödjup och marktempertur i Norrländska skogar idag och om 100 år. Fakta Skog.

Laudon, H., Buffam, I, Serrano, I. (2005). Vattenkemi bestämmer arters utbredning. Miljötrender, Nr. 1, 6-7.

Bishop, K. & Laudon, H. (2004).  Om naturlig surhet i norrländska vattendrag. Miljötrender, 2, 12-13.

Laudon, H. (2003). Processes affecting surface water acidity: Natural acid or anthropogenically acidified waters? KSLA. 142:18, 43-48.

Laudon, H. & Fölster, J. (2003). Återhämtningen har börjat.  Skog och Forskning, 3, 20-23.

Bishop, K. & Laudon, H. (2003). Är skogsmarkskalkning förenlig med försiktighetsprincipen? Skog och Forskning, 3, 31-35.

Bishop, K., Laudon, H., Löfgren, S. (2001). Ge statligt stöd även för alternativ till kalkningen. Dagens Nyheter, 11 Nov., 2001 Replik i DN Debatt.

Laudon, H. & Bishop K. (2001). Kalkning och biologisk mångfald: Bredare bidragssystem ger bättre vattenvård. Debate article. Miljöaktuellt, juni -01.

Laudon, H. & Bishop K. (2001). Kalkas norrländska vatten i onödan? - främst naturliga orsaker till sur vårflod. Fakta Skog, Nr. 1.

Laudon, H. (2000). Naturligt sura vattendrag. SLU notiser nr. 7.

Laudon, H and Bishop, K. (1999). Miljötrender Nr 3, 1999.  ISSN 1403-4743

Short CV

Professor (Chair) Forest Landscape Biogeochemistry, SLU, 2008-present.

Assistant professor, Umeå University 2005-2008.

Docent in biogeochemistry and hydrology, SLU 2005.

Post-Doc Massachusetts Institute of Technology, Boston, 2001-2002 on a KAW Scholarship for Environment and Sustainability.

Ph.D. 2000 Department of Environmental Assessment, SLU, Uppsala, Title: Separating Natural Acidity from Anthropogenic Acidification in the Spring Flood of Northern Sweden.

M.Sc. 1995, Dept. of Geography, University of British Columbia, Canada.

Vice coordinator for "Conceptualisation of process heterogeneity" in the IAHS lead Prediction of Ungaged Basins framework 2007-2010.

Swedish delegate in COST Action Forest Mangement and the Water Cycle (FORMAN) 2007-

Wallenberg Fellow in Environment and Sustainability 2001-2005

Coordinator for "Water" in SLU:s theme venture "Soil and Water 2003"

Chairman at the workshop Surface water acidification in Sweden 2004

Member of the scientific evaluation committee for Forest liming, Skogsstyrelsen (2005-2008)

Board member of the Swedish hydrological council (SHR-Svenska hydrologiska rådet) 2005-06

Coordinator of Umeå School of Environmental Studies (Umeå Miljöhögskola) 2003-2008

Board member of Umeå School of Environmental Studies (Umeå Miljöhögskola) 2003-05

Member of the Swedish EPA board for environmental guidelines of acidification 2002-2006

Principle coordinator for the Episode Project financed by the Swedish EPA (1996-2001)