An assessment of Pant-y-llyn, Wales' only turlough and comparison to Irish sites

Farr, Gareth; Naughton, Owen; Hatton-Ellis, Tristan; Bevan, Jamie. 2013 An assessment of Pant-y-llyn, Wales' only turlough and comparison to Irish sites. [Lecture] In: Groundwater Dependent Ecosystems, Birmingham, UK, 27 Feb 2013. (Unpublished)

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Turloughs are ephemeral karst lakes resulting from high rainfall and, accordingly, high groundwater levels in topographic depressions in karstified limestone terrain. The ephemeral nature of turlough hydrology gives rise to a characteristic ecology as such turloughs have been designated as a Priority Habitat in the EU Habitats Directive (92/43/EEC). While there are recorded turloughs in the Republic of Ireland Pant-y Llyn is Wales’ and mainland Britain’s only recorded turlough; it is a key feature of Cernydd Carmel SSSI and SAC. A collaborative investigation was carried out between Environment Agency Wales and Countryside Council for Wales (soon to be Natural Resources Wales). The main aims of this investigation were to: - Improve the hydrogeological conceptual understanding. - Review the water chemistry of Pant-y-Llyn and the surrounding groundwater. - Compare the hydrology of Pant-y-Llyn with that of recorded Irish turloughs. - Use existing data back model the turlough hydrograph. - Provide evidence to confirm its status for the Habitats Directive. The investigation has shown that Pant y Llyn has both a water quality and hydrological cycle. For the first time comparisons with Irish turloughs allow us to put Pant y Llyn into a wider turlough typology.

Item Type: Publication - Conference Item (Lecture)
Additional Keywords: GroundwaterBGS, Groundwater
NORA Subject Terms: Ecology and Environment
Related URLs:
Date made live: 23 May 2013 12:44 +0 (UTC)

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