Estuaries in Northern Spain: An Analysis of Their Sedimentation Rates

Jaime Bonachea (), Juan Remondo and Victoria Rivas
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Jaime Bonachea: Department of Earth Sciences and Physics of the Condensed Matter, Universidad de Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain
Juan Remondo: Department of Earth Sciences and Physics of the Condensed Matter, Universidad de Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain
Victoria Rivas: Department of Geography, Urban Planning and Land Planning, Universidad de Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain

Sustainability, 2024, vol. 16, issue 16, 1-23

Abstract: This review presents an analysis of recent sedimentation rates (SRs) in the Atlantic estuaries of northern Spain. Sedimentation rates were derived from sediment core dating using radiometric methods, including 210-Pb, 137-Cs, and 14-C, and were compiled from the existing literature. The observed SRs are consistent with global estimates, ranging from 0.04 to 55.1 mm/year. No correlation was found between SRs and estuarine morphology, basin size, or estuary size, and no apparent geographical pattern emerged. However, certain SRs were directly linked to human activities in the catchment area or the estuarine environment. Temporally, a general increase in SRs has occurred since the early 20th century, particularly notable from the mid-20th century, with indications of stabilization or reduction in the 21st century. Further research is essential to investigate these relationships more comprehensively to ensure the sustainability of these fluvial–marine environments.

Keywords: radiometric dating; sedimentation rate; estuary; rias; northern Spain (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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