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A central European alluvial river under anthropogenic pressure: The Ohře River, Czechia

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F21%3A00540289" target="_blank" >RIV/61388980:_____/21:00540289 - isvavai.cz</a>

  • Alternative codes found

    RIV/44555601:13520/21:43896239 RIV/61989592:15310/21:73610506

  • Result on the web

    <a href="https://doi.org/10.1016/j.catena.2021.105218" target="_blank" >https://doi.org/10.1016/j.catena.2021.105218</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.catena.2021.105218" target="_blank" >10.1016/j.catena.2021.105218</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    A central European alluvial river under anthropogenic pressure: The Ohře River, Czechia

  • Original language description

    Detailed geomorphic evaluation, drill coring, and analysis of floodplain sediments, along with geophysical imaging, were used to study the evolution of the youngest terraces and palaeo-meanders in the lower reach of the Ohře River. Floodplain sediment dating was performed by optically simulated luminescence and via the examination of sediment contamination from historical mining of metals in the river catchment. Two river segments were studied. In the upper segment, the Žatec area, the trunk channel persistently incised from the Early Holocene to ca. 2 ka, and in historical times the meandering channel changed to a low sinuous channel in a narrow channel belt. The terraces and palaeo-meanders in the Žatec area are younger than indicated in the geological maps, by one to two orders of magnitude. In the lower segment, the Písty area, 60 km downstream, approximately half of the sediments in the floodplain transect are the Early to Middle Holocene age and the other half are younger than approximately 1,000 years, in particular from the last five centuries. The deposits of the current channel belt in the Písty area are coarser (mostly sandy in the top metre) than in the rest of the floodplain (mostly silty in the top metre), indicating that the river must have undergone a substantial transformation in the last few centuries. We hypothesise that the trigger of this change was upstream channel straightening and lateral stabilisation, which reduced the amount of river-transported materials. Although the river catchment has been subjected to anthropogenic activity (including intense agriculture in the lower reaches), the river does not show enhanced aggradation.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10511 - Environmental sciences (social aspects to be 5.7)

Result continuities

  • Project

    <a href="/en/project/GA15-00340S" target="_blank" >GA15-00340S: Anthropogenic Pollution and Fluvial Architecture: Two Phenomena and a Single Story</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Catena

  • ISSN

    0341-8162

  • e-ISSN

    1872-6887

  • Volume of the periodical

    201

  • Issue of the periodical within the volume

    JUN

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    18

  • Pages from-to

    105218

  • UT code for WoS article

    000631043700031

  • EID of the result in the Scopus database

    2-s2.0-85100638731