PMID: 11916036Mar 28, 2002Paper

Time series study of concentrations of SO4(2-) and H+ in precipitation and soil waters in Norway

Environmental Pollution
H KvaalenD Aamlid

Abstract

Along with a steady reduction of acid inputs during 14 years of intensive forest monitoring in Norway, the influence of acid deposition upon soil water acidity is gradually reduced in favour of other and internal sources of H+ and sulphate, in particular from processes in the upper soil layer. We used statistical analyses in two steps for precipitation, throughfall and soil water at 5, 15 and 40 cm depths. Firstly, we employed time series analyses to model the temporal variation as a long-term linear trend and a monthly variation, and by this filtered out residual, weekly variation. Secondly, we used the parameter estimates and the residuals from this to show that the long term, the monthly and the weekly variation in one layer were correlated to similar temporal variation in the above, adjacent layer. This was strongly evident for throughfall correlated to precipitation, but much weaker for soil water. Continued acidification in soil water on many plots suggests that the combined effects of anthropogenic and natural acid inputs exceed in places the buffering capacity of the soil.

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Citations

Jul 31, 2008·Environmental Monitoring and Assessment·Pierre SicardJean-Claude Galloo
Aug 7, 2014·Environmental Monitoring and Assessment·Liisa UkonmaanahoTiina M Nieminen
Feb 9, 2010·The Science of the Total Environment·Pierre SicardPatrick Malléa
Apr 4, 2006·The Science of the Total Environment·Holger LangeNicholas Clarke
Mar 8, 2005·Environmental Pollution·David M Nickerson, Brooks C Madsen
Apr 1, 2018·Global Change Biology·James JohnsonMathieu Jonard
Nov 22, 2005·Environmental Science & Technology·Elisabeth Graf PannatierPeter Blaser

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