Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638713
Title: Recent palaeoecology and industrial impact on the South Wales landscape
Author: Rosen, D. Z.
Awarding Body: University of Wales Swansea
Current Institution: Swansea University
Date of Award: 1999
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Abstract:
The increasing extent and diversity of industrial activity throughout South Wales over the past 500 years may have profoundly affected the vegetation. However, few radiometrically-dated pollen diagrams relating to this period have been produced from South Wales, and the precise nature and causes of any ecological change remain uncertain. This study aims to elucidate past vegetation change by constructing radiometrically-dated pollen diagrams from four sites in South Wales, to reconstruct past industrial activity around the study sites using palaeoenvironmental techniques (geochemical, magnetic mineral and spheroidal carbonaceous particle analyses) and to assess whether this industrial activity was a major cause of vegetation change. The pollen diagrams reflect major woodland clearance around Llanllwch Bog (Carmarthenshire) and Crymlyn Bog (Lower Swansea Valley) from the early and mid-nineteenth century respectively. This might be attributable to an increase in demand for industrial land, population growth or agricultural expansion. There is little change in the pollen spectra from Ffoston Cenglau (upland South Wales) or Kenfig Pool (near Port Talbot). Although the palaeoenvironmental records suggest considerable variations in the nature and timing of industrial activity throughout South Wales, this may have occurred outside of the site pollen source areas whilst diagenetic of methodological influences may have affected the palaeoenvironmental profiles. It was therefore often difficult to reconcile the palaeoecological and palaeoenvironmental records. It was shown that site-specific and coring location-specific influences affect the spatial representation and reliability of the palaeoecological and palaeoenvironmental records. As a result, ombrotrophic mires may not be the most suitable depositional context from which to reconstruct past vegetational and industrial change. Detailed documentary evidence can aid data interpretation, but the nature and causes of regional vegetation change may remain undetected. A multidisciplinary approach nonetheless limits the potential for misinterpretation of the evidence for past vegetation change and its underlying causes.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.638713  DOI: Not available
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