Stevens, Carly J.; Dise, Nancy B. and Gowing, David J.
(2009).
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| DOI (Digital Object Identifier) Link: | http://doi.org/10.1016/j.envpol.2008.06.033 |
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| Google Scholar: | Look up in Google Scholar |
Abstract
The deposition of high levels of reactive nitrogen (N) and sulphur (S), or the legacy of that deposition, remain among the world's most important environmental problems. Although regional impacts of acid deposition in aquatic ecosystems have been well documented, quantitative evidence of wide-scale impacts on terrestrial ecosystems is not common. In this study we analysed surface and subsoil chemistry of 68 acid grassland sites across the UK along a gradient of acid deposition, and statistically related the concentrations of exchangeable soil metals (1 M KCl extraction) to a range of potential drivers. The deposition of N, S or acid deposition was the primary correlate for 8 of 13 exchangeable metals measured in the topsoil and 5 of 14 exchangeable metals in the subsoil. In particular, exchangeable aluminium and lead both show increased levels above a soil pH threshold of about 4.5, strongly related to the deposition flux of acid compounds
| Item Type: | Journal Article |
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| Copyright Holders: | 2009 Elsevier Ltd |
| ISSN: | 0269-7491 |
| Keywords: | Acidification; Aluminium; Lead; Nitrogen deposition; Sulphur deposition |
| Academic Unit/Department: | Faculty of Science, Technology, Engineering and Mathematics (STEM) > Environment, Earth and Ecosystem Sciences Faculty of Science, Technology, Engineering and Mathematics (STEM) |
| Interdisciplinary Research Centre: | OpenSpace Research Centre (OSRC) Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR) |
| Item ID: | 17914 |
| Depositing User: | Colin Smith |
| Date Deposited: | 19 Aug 2009 09:57 |
| Last Modified: | 09 Aug 2016 07:25 |
| URI: | http://oro.open.ac.uk/id/eprint/17914 |
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