DOI: 10.1016/j.quascirev.2017.07.014
论文题名: Historical palaeohydrology and landscape resilience of a Mediterranean rambla (Castellón, NE Spain): Floods and people
作者: Machado M.J. ; Medialdea A. ; Calle M. ; Rico M.T. ; Sánchez-Moya Y. ; Sopeña A. ; Benito G.
刊名: Quaternary Science Reviews
出版年: 2017
卷: 171 起始页码: 182
结束页码: 198
语种: 英语
英文关键词: Flood frequency analysis
; Historical landcover
; Palaeofloods
; Palaeohydrology
Scopus关键词: Catchments
; Deforestation
; Deposits
; Flood control
; Geochemistry
; Land use
; Sedimentology
; Stratigraphy
; Stream flow
; Environmental conditions
; Flood frequency analysis
; Land cover
; Methodological approach
; Palaeofloods
; Palaeohydrology
; Slackwater flood deposits
; Stratigraphic sequences
; Floods
英文摘要: This paper provides a new methodological approach to analyse secular patterns of flooding (magnitude and frequency) from sedimentary evidence (palaeofloods), taking into account changes in channel geometry, and their links to historical environmental changes and the inherent social and demographic evolution within the catchment. A case study analysis was focused in Rambla de la Viuda (drainage area of 1500 km2) whose stream flow is related to extreme rainfalls. A 500 years sedimentary archive was reconstructed from eight stratigraphic profiles comprising continuous sequences of slackwater flood deposits interbedded with episodic colluvial and edaphic horizons. Discharge estimates associated to sedimentary flood evidences were obtained from one-dimensional hydraulic modelling. The stratigraphic units were sampled to characterise their geochemical and paleobotanical (phytoliths) contents. Palaeoflood chronology was obtained from radiocarbon and luminescence (OSL) dating, supported by documentary data (written historical documents). A high frequency and high magnitude palaeoflood period took place during the 15th-middle 16th century, which seem to correlate in time with general wetter conditions. Three short-term environment stability conditions (land use and climatic) also made possible the development of three paleosols. The lowest flood magnitude and discharges in the sedimentary record was found between the mid-17th to mid-18th centuries, under prevailing drier environmental conditions. Episodic high magnitude flooding took place at late 18th century, correlating in time with palaeovegetation and geochemical evidences of important changes on land use (deforestation and grazing). Poorer developed soils were found at upper stratigraphic sequences (19th century) characterised by thick units of colluvium deposits, usually culminating sequences of short-lived continuous slackwater flood units. Despite of the potential human influence (land-use) on soil hydrology, the long-term behaviour of high magnitude floods (>1000 m3 s-1) has been stationary over the last 500 years. © 2017 Elsevier Ltd 资助项目: Machado, M.J.
; Geology Department, National Museum of Natural Sciences -CSICSpain
; 电子邮件: machado@mncn.csic.es
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59123
Appears in Collections: 过去全球变化的重建
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作者单位: Geology Department, National Museum of Natural Sciences -CSIC, Madrid, Spain; Department of Geography, University of Sheffield, Winter Street, Sheffield, United Kingdom; Instituto Pirenaico de Ecología, CSIC, Zaragoza, Spain; Geosciences Institute, CSIC-University Complutense of Madrid, Spain; Department of Stratigraphy, University Complutense of Madrid, Spain
Recommended Citation:
Machado M.J.,Medialdea A.,Calle M.,et al. Historical palaeohydrology and landscape resilience of a Mediterranean rambla (Castellón, NE Spain): Floods and people[J]. Quaternary Science Reviews,2017-01-01,171