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  • 标题:Ocupación de la llanura aluvial e inundaciones en el Pirineo Central
  • 本地全文:下载
  • 作者:R. Serrano-Notivoli ; D. Mora ; A. Ollero
  • 期刊名称:Cuadernos de Investigación Geográfica = Geographical Research Letters
  • 印刷版ISSN:0211-6820
  • 电子版ISSN:1697-9540
  • 出版年度:2017
  • 卷号:43
  • 期号:1
  • 页码:309-328
  • DOI:10.18172/cig.3057
  • 出版社:Universidad de La Rioja
  • 摘要:Floods modify the natural dynamics of river environments and greatly affect urban areas, especially in mountain regions where flooding is frequent because of the precipitation characteristics and orographic configuration. In this study the vulnerability of the central sector of the Pyrenees to flood events was investigated using frequency analysis of daily flow and precipitation data for the period from 1940 to 2012 for the headwaters of the Aragón and Ésera rivers. The land use evolution over the past 60 years was also analyzed. The return periods showed that floods have not been exceptional, and the high flow frequency has been large and closely related to precipitation events. This, combined with a large increase in human occupation, particularly since the 1990s, of fluvial areas associated with the land use evolution since 1956, has increased exposure to flood risks.
  • 关键词:floods; vulnerability; Pyrenees; Aragón and Ésera rivers; regional planning
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