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Report chapter, 2018

Report on National ICP IM activities in Sweden in 2016

Lundin, Lars; Rönnback, Pernilla; Löfgren, Stefan; Bovin, Kajsa; Grandin, Ulf; Pihl Karlsson, Gunilla; Moldan, Filip; Thunholm, Bo

Abstract

The Swedish integrated monitoring programme is run on four sites distributed from south central Sweden (SE14 Aneboda), over the middle part (SE15 Kindla), to a northerly site (SE16 Gammtratten). The long-term monitoring site SE04 Gårdsjön F1 is complementary on the inland of the West Coast and has been influenced by long-term high deposition loads. The sites are well-defined catchments with mainly coniferous forest stands dominated by bilberry spruce forests on glacial till deposited above the highest coastline. Hence, there has been no water sorting of the soil material. Both climate and deposition gradients coincide with the distribution of the sites from south to north (Table 1). The forest stands are mainly over 100 years old and at least three of them have several hundred years of natural continuity. Until the 1950’s, the woodlands were lightly grazed in restricted areas. In early 2005, a heavy storm struck the IM site Aneboda, SE14. Compared with other forests in the region, however, this site managed rather well and roughly 20–30% of the trees in the area were stormfelled. In 1996, the total number of large woody debris in the form of logs was 317 in the surveyed plots, which decreased to 257 in 2001. In 2006, after the storm, the number of logs increased to 433, corresponding to 2711 logs in the whole catchment. In later years, 2007–2010, bark beetle (Ips typographus) infestation has almost totally erased the old spruce trees. In 2011 more than 80% of the trees with a breast height over 35 cm were dead (Löfgren et al. 2014) and currently almost all spruce trees with diameter of ≥20 cm are gone. In the following, climate, hydrology, water chemistry and some ongoing work at the four Swedish IM sites in 2016 are presented (Löfgren 2017).

Keywords

The Swedish integrated monitoring programme; climate; hydrology; water chemistry

Published in

Reports of the Finnish Environment Institute
2018, pages: 53-57
Book title: 27th Annual report 2018: convention on long-range tansboundary air pollution: international cooperative programme on integrated monitoring of air pollution effects on ecosystems
ISBN: 978-952-11-4953-5, eISBN: 978-952-11-4954-2
Publisher: Finnish Environment Institute

Authors' information

Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Bovin, Kajsa
Geological Survey of Sweden (SGU)
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Pihl Karlsson, Gunilla
IVL Swedish Environmental Research Institute
Moldan, Filip
IVL Swedish Environmental Research Institute
Thunholm, Bo
Geological Survey of Sweden (SGU)

UKÄ Subject classification

Environmental Sciences

URI (permanent link to this page)

https://res.slu.se/id/publ/96804