Hjalmar Laudon,^* Johannes Hedtjärn,^** Jakob Schelker,^*** Kevin Bishop,^**** Rasmus Sørensen,^***** Anneli Ågren<sup>******


*</sup>Hjalmar Laudon is a professor and chair of forest landscape biogeochemistry at SLU in Umeå. His research mainly concerns understanding natural variability and human perturbation of hydrological and biogeochemical patterns in the boreal landscape. His address: Forest Ecology and Management, SLU, SE-901 83 Umeå, Sweden. hjalmar.laudon@seksko.slu.se
^**Johannes Hedtjärn has an MSc in physical geography and specializes in geographical information systems and water quality. His address: Forest Ecology and Management, SLU, SE-901 83 Umeå, Sweden. johannes.hedtjarn@seksko.slu.se
^***Jakob Schelker is a PhD student at the department of Forest Ecology and Management, SLU, Umeå. His research is focused on forestry effects on water quality across spatial and temporal scales. His address: Forest Ecology and Management, SLU, SE-901 83 Umeå, Sweden. jakob.schelker@seksko.slu.se
^****Kevin Bishop is a professor of environmental assessment. Research to distinguish human influence from natural variability in the surface waters of forested landscapes has led him to consider how silviculture influences mercury cycling. His address: Swedish University of Aquatic Sciences and Assessment, Department of Aquatic Science and Assessment, P.O. Box 7050, SE-750 07 Uppsala, Sweden. kevin.bishop@vatten.slu.se
^*****Rasmus Sørensen is a PhD student at the Department of Aquatic Sciences and Assessment at SLU, Uppsala, Sweden. His studies are focused on mercury leakage from managed forestland, involving studies of forest hydrology and dissolved organic carbon. His address: Department of Aquatic Science and Assessment, P.O. Box 7050, SE-750 07 Uppsala, Sweden. rasmus.sorensen@vatten.slu.se
^******Anneli Ågren is a postdoctoral fellow at the forest landscape biogeochemistry group at SLU in Umeå. Her research mainly concerns the link between the water quality and the terrestrial system, with focus on dissolved organic carbon (DOC). Her address: Forest Ecology and Management, SLU, SE-901 83 Umeå, Sweden. anneli.agren@seksko.slu.se