Stefan Löfgren,^* Mats Aastrup,^** Lage Bringmark,^*** Hans Hultberg,^**** Lotta Lewin-Pihlblad,^***** Lars Lundin,^****** Gunilla Pihl Karlsson,^******* Bo Thunholm<sup>********


*</sup>Stefan Löfgren () is an Associate Professor at the Department of Aquatic Sciences and Assessment, SLU, Uppsala. His research is focused on acidification, eutrophication, and DOC dynamics in soils and surface waters and effects of various forestry operations on these processes. He is also deeply involved in various environmental assessment and long-term monitoring programs. Address: Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, SLU, P.O. Box 7050, 750 07 Uppsala, Sweden. e-mail: Stefan.Lofgren@slu.se
^**Mats Aastrup is a Senior Geologist at the Geological Survey of Sweden. He has headed the national environmental groundwater monitoring program, and played lead roles in drafting national environmental quality goals for groundwater, directives and guidelines for implementation of the groundwater clauses of the EC Water Framework Directive, and addressing issues related to the production of hydrogeological data. Address: Swedish Geological Survey, SGU, P.O. Box 670, 751 28 Uppsala, Sweden. e-mail: Mats.Aastrup@sgu.se
^***Lage Bringmark is an Associate Professor at the Department of Aquatic Sciences and Assessment, SLU, Uppsala. His research interests include metal pollution, biological effects, and carbon dynamics in forest soils. He is surveying soil processes in an environmental monitoring of forests program. Address: Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, SLU, P.O. Box 7050, 750 07 Uppsala, Sweden. e-mail: Lage.Bringmark@slu.se
^****Hans Hultberg is a Professor in biogeochemistry at Chalmers University of Technology, and a senior researcher at IVL, the Swedish Environmental Research Institute Ltd. Since the late 1960s his research has focused on acidification issues with particular emphasis on processes in the Gårdsjön area. Address: IVL Swedish Environmental Research Institute Ltd, P.O. Box 5302, 400 14 Gothenburg, Sweden. e-mail: Hans.Hultberg@ivl.se
^*****Lotta Lewin-Pihlblad is a State Geologist at the Geological Survey of Sweden and head of the national environmental groundwater monitoring program. She works on issues connected to the production of hydrogeological data and directives/guidelines for implementation of the groundwater part of the EC Water Framework Directive. Address: Swedish Geological Survey, SGU, P.O. Box 670, 751 28 Uppsala, Sweden. e-mail: Lotta.Lewin.Pihlblad@sgu.se
^******Lars Lundin is a Professor in soil science, SLU, Uppsala. His research is focused on catchment hydrological balances and chemical budgets, often in relation to land-use, especially forestry. Soil hydrological processes including peat soils and mire landscapes are important aspects of his scientific work. Related issues concern peatland management and wetland restoration. He is also deeply involved in various environmental assessment and long-term monitoring programs. Address: Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, SLU, P.O. Box 7050, 750 07 Uppsala, Sweden. e-mail: Lars.Lundin@slu.se
^*******Gunilla Pihl Karlsson has a PhD in Applied Environmental Sciences. Her main research area is acidification and eutrophication monitoring in forest ecosystems. Address: IVL Swedish Environmental Research Institute Ltd, P.O. Box 5302, 400 14 Gothenburg, Sweden. e-mail: Gunilla.Pihl.Karlsson@ivl.se
^********Bo Thunholm is a State Geologist at the Geological Survey of Sweden and head of the Groundwater Network. He hosts national and regional groundwater monitoring data and is engaged in statistical evaluations of data obtained from various programs, e.g., environmental monitoring programs. He is also involved in the implementation of the EC Water Framework Directive. Address: Swedish Geological Survey, SGU, P.O. Box 670, 751 28 Uppsala, Sweden. e-mail: Bo.Thunholm@sgu.se