Search Results: "Freshwater environment" OR "acidification" OR "models" OR "time trends" OR "sulphur and Sox"

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Surface water runoff from the Dalelva catchment, northeastern Norway, 2001–2003 Surface water runoff from the Dalelva catchment, northeastern Norway, 2001–2003. (a) streamwater flow and pH, (b) non-marine concentrations of sulfate and base cations, and (c) chloride and non-marine [..]
Atmospheric sulphur cycle Atmospheric sulphur cycle
Critical loads of acidity for soils Critical loads of acidity for terrestrial ecosystems in northern Europe and Canada north of 60 degrees N.
Sulphur dioxide concentrations in air and emissions from the smelter at Nikel Annual SO2 concentrations in air at ground level at the Svanvik monitoring station, and SO2 emissions from the non-ferrous metal smelters at Nikel
SO2 concentration at the Svanvik monitoring station Annual SO2 concentration in air at ground level at the Svanvik monitoring station and SO2 emissions from the non-ferrous metal smelters at Nikel
Transect south–north across the survey area near the western boundary in 1995 Transect south–north across the survey area near the western boundary in 1995, showing: (a) pH in a water extract of the O-horizon; (b) ammonium acetate extractable (pH 4.5) base cation concentrations [..]
Ammonium acetate extractable Ca and Mg in the O-horizon of soils Ammonium acetate extractable Ca and Mg in the O-horizon of soils (x-axis) vs. their total concentrations (aqua regia extractable) in the C-horizon of soils and in moss in 1995
A comparison of the two west–east transects across the survey area in 1995 A comparison of the two west–east transects across the survey area in 1995, showing changes from east to west in (a) total Al (nitric acid) and exchangeable Al concentrations in the O-horizon; (b) [..]
Transect west–east across the survey area showing exchangeable Ca in the O-horizon of podzol soils in 1995 and from 2000 to 2001 Transect west–east across the survey area showing exchangeable Ca in the O-horizon of podzol soils in 1995 (Kola Ecogeochemistry Project) and from 2000 to 2001 (Barents Ecogeochemistry Project)
Cumulative distribution functions (CDF, %) of pH (water extraction) Cumulative distribution functions (CDF, %) of pH (water extraction), exchangeable Ca, Mg, K, and Al concentrations and the exchangeable Al:(Ca+Mg+K+Na) ratio in the O-horizon in the ‘no visual damage’ [..]
Transect south–north across the survey area near the western boundary in 1995 Transect south–north across the survey area near the western boundary in 1995 (C–D on Figure 5.2), showing: (a) pH in a water extract of the O-horizon; (b) ammonium acetate extractable (pH 4.5) base [..]
Visible (acute) SO2 injuries on (a) birch leaves and (b) Scots pine needles at Svanvik Visible (acute) SO2 injuries on (a) birch (Betula pubescens) leaves and (b) Scots pine (Pinus sylvestris) needles at Svanvik, Norway, approximately 10 km northwest of Nikel
Location of the catchments included in the Barents Project Location of the catchments included in the Barents Project
Estimated exceedance of critical loads of acidity for soils for three emission/deposition scenarios Estimated exceedance of critical loads of acidity for soils for three emission/deposition scenarios: 1990 emissions, the CLE scenario for 2010 (CLE, 2010), and the MFR scenario for 2020 (MFR, 2020).
Median values for a selection of key chemical variables Median values for a selection of key chemical variables including the calculated critical load of acidity CLAc and exceedance

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