| Title: |
Interpretation of trends in acidic deposition and surface water chemistry in Scotland during the past three decades.
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| Resource Type: |
document --> technical publication --> journal article
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| Country: |
EU Projects
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| Year: |
2001 |
| Availability: |
Hydrology and Earth System Sciences Vol. 5, No. 3, 407-420.
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| Author 1/Producer: |
Harriman, R.
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| Other Authors/Producers: |
Watt, A.W., Christie, A.E.G., Collen, P., Moore, D.W., McCartney, A.G., Taylor, E.M., and Watson, J.
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| Author / Producer Type: |
EC Project
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| Publisher: |
copernicus
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| Format (e.g. PDF): |
PDF
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EUGRIS Keyword(s): |
Contaminated land-->Wider impacts / sustainability-->Environmental
Contaminated land-->Wider impacts / sustainability-->Sustainable / green remediation
Diffuse pollution-->Diffuse pollution overview
Diffuse pollution-->Monitoring
Water resources and their management -->Stresses, quality and ecological status
Water resources and their management -->Water resources and their management Overview
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| Short description: |
Trends in major ionic components of bulk precipitation were analysed for two sites, Faskally and Loch Ard forest in Scotland, for the period 1972-2000. Large reductions in sulphur deposition occurred in the early 1980s and to a lesser extent during 1995-2000. The period 1988-95 was relatively stable. pH increased significantly at both sites but nitrate and ammonia only increased significantly at Loch Ard forest. Long- term chemical data from 37 streams and lochs in four regions of Scotland were analysed over three time periods (all available data, 88-98 and 95-2000). A decline in non-marine sulphate was found at all sites while the most consistent increases in pH and alkalinity were recorded at high elevation loch sites in the Galloway area. With the exception of one site, dissolved organic carbon concentrations increased significantly with moorland sites showing smaller increases than forested sites. Qualitative, experimental and monitoring data from lochs in the Galloway area revealed evidence of recovery of fish populations. All the fresh waters included in this study are currently in the best ecological condition since the 1970s in the context of recovery from acidification.
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Submitted By:
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Dr Stefan Gödeke WhoDoesWhat?
Last update: 29/06/2007
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