Storm-triggered, increased supply of sediment-derived phosphorus to the epilimnion in a small freshwater lake
Article
Article Title | Storm-triggered, increased supply of sediment-derived phosphorus to the epilimnion in a small freshwater lake |
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ERA Journal ID | 200636 |
Article Category | Article |
Authors | Crockford, Lucy (Author), Jordan, Phil (Author), Melland, Alice R. (Author) and Taylor, David (Author) |
Journal Title | Inland Waters |
Journal Citation | 5 (1), pp. 15-26 |
Number of Pages | 12 |
Year | 2014 |
Place of Publication | Ambleside, Cumbria. United Kingdom |
ISSN | 2044-2041 |
2044-205X | |
Digital Object Identifier (DOI) | https://doi.org/10.5268/IW-5.1.738 |
Web Address (URL) | https://www.fba.org.uk/journals/index.php/IW/article/viewFile/738/439 |
Abstract | This study investigated internal loading of sediment-derived phosphorus (P) in a small, meso-eutrophic lake (surface area 0.2 km2, catchment area 2.7 km2, mean depth 6 m, maximum depth 14 m) on the Atlantic seaboard of western Europe. High resolution data collected over 2.5 years (1 Mar 2011 to 30 Sep 2013) revealed inconsistent patterns in (1) the timing and magnitude of lake turnover and (2) the relative importance of the transfer of hypolimnetic sediment-derived P to the epilimnion when compared with external catchment loading. Lake turnover events during spring and summer had the effect of increasing the internal loading of epilimnetic P during the main growing season, thus adding to eutrophication pressure and contributing to algal blooms in the lake. Abrupt pre-fall (autumnal) turnover events and associated increases in eutrophication pressure such as those reported here may become more frequent occurrences in western Europe because of warming-induced increases in Atlantic summer storm frequency and magnitude, and they could counter the apparent effectiveness of measures aimed at reducing eutrophication impacts through limiting external loadings of nutrients from the catchment. |
Keywords | agriculture; climate change; geochemistry; monitoring; pollution; stratification; water quality |
ANZSRC Field of Research 2020 | 370704. Surface water hydrology |
370799. Hydrology not elsewhere classified | |
400499. Chemical engineering not elsewhere classified | |
Public Notes | © International Society of Limnology 2014. This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source. Open access journal. |
Byline Affiliations | University of Dublin, Ireland |
University of Ulster, United Kingdom | |
National Centre for Engineering in Agriculture | |
National University of Singapore | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2wzq/storm-triggered-increased-supply-of-sediment-derived-phosphorus-to-the-epilimnion-in-a-small-freshwater-lake
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