Change search
ReferencesLink to record
Permanent link

Direct link
Recovery from episodic acidification delayed by drought and high sea salt deposition
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2007 (English)In: Hydrology and Earth System Sciences Discussions, ISSN 1812-2108, Vol. 4, 2975-2996 p.Article in journal (Other academic) Published
Abstract [en]

For the prediction of episodic acidification large uncertainties are connected to climatic variability and its effect on drought conditions and sea-salt episodes. In this study data on 342 hydrological episodes in 25 Swedish streams, sampled over 10 years, have been analyzed using a recently developed episode model. The results demonstrate that drought is the most important factor modulating the magnitude of the anthropogenic influence on pH and ANC during episodes. These modulating effects are especially pronounced in southern and central Sweden, where the historically high acid deposition has resulted in significant S pools in catchment soils. The results also suggest that the effects of episodic acidification are becoming less severe in many streams, but this amelioration is less clear in coastal streams subject to high levels of sea-salt deposition. Concurrently with the amelioration of the effects of episodic acidification, regional climate models predict that temperatures will increase in Sweden during the coming decades, accompanied by reductions in summer precipitation and more frequent storms during fall and winter in large areas of the country. If these predictions are realized delays in streams' recovery from episodic acidification events can be expected.

Place, publisher, year, edition, pages
European Geosciences Union/Copernicus Publications , 2007. Vol. 4, 2975-2996 p.
National Category
Oceanography, Hydrology, Water Resources
URN: urn:nbn:se:umu:diva-20275DOI: 10.5194/hessd-4-2975-2007OAI: diva2:208354
Available from: 2009-03-17 Created: 2009-03-17 Last updated: 2011-10-28Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Laudon, Hjalmar
By organisation
Department of Ecology and Environmental Sciences
In the same journal
Hydrology and Earth System Sciences Discussions
Oceanography, Hydrology, Water Resources

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 20 hits
ReferencesLink to record
Permanent link

Direct link